Efectividad y seguridad de la facotrabeculectomía por dos vías

Objetivo: Evaluar la efectividad y seguridad de la facotrabeculectomía por dos vías. Métodos: Se realizó de un estudio preexperimental de tipo antes-después, en el cual se incluyeron 87 pacientes (87 ojos) con glaucoma primario de ángulo abierto tratados con facotrabeculectomía por dos vías. En ellos se analizaron variables demográficas (edad, sexo, color de la piel) y los efectos de la cirugía en agudeza visual, presión intraocular, número de medicamentos y complicaciones. Resultados: La mediana de edad fue de 72, 0 años, la distribución por sexo fue similar y predominaron los pacientes de color de la piel no blanca. La mediana de presión intraocular preoperatoria y del número de medicamentos fue de 25,0 mmHg (RI: 22,0-30,0 mmHg) y 3,0 (RI: 3-3), respectivamente. Mientras que en el posoperatorio (6 meses) la mediana de la presión fue de 15,2 mmHg (RI: 13,2-17,2 mmHg) y del número de medicamentos 0,0 (RI: 0,0-1,0). El éxito completo a los 6 meses fue del 62, 8 %. La mediana de la agudeza visual sin corrección pasó de 0,30 (RI: 0, 10-0, 50) en el preoperatorio a 0, 80 (RI: 0, 50-1, 00) en el posoperatorio. Las complicaciones fueron mínimas, siendo el edema macular quístico la más frecuente. Conclusiones: La facotrabeculectomía por dos vías es efectiva para disminuir la presión intraocular, reducir el número de medicamentos y lograr la mejoría de la agudeza visual. Se puede considerar segura por la baja frecuencia en la que se presentan complicaciones.

Objective: To evaluate the effectiveness and safety of phacotrabeculectomy by two ways. Methods: A preexperimental before-after study was conducted with 87 patients (87 eyes) with primary open-angle glaucoma treated with phacotrabeculectomy by two ways. The patients were analyzed according to demographic variables (age, sex, skin color), as well as the effects of surgery on visual acuity, intraocular pressure, number of medications, and complications. Results: The mean age was 72.0 years, while distribution by sex was similar and patients with non-white skin color predominated. The median preoperative intraocular pressure and number of medications were 25.0 mmHg (RI: 22.0-30.0 mmHg) and 3.0 (RI: 3-3), respectively; while the postoperative (6 months) median pressure was 15.2 mmHg (RI: 13.2-17.2 mmHg) and number of medications was 0.0 (RI: 0.0-1.0). Complete success at six months was 62.8 %. Median uncorrected visual acuity passed from 0.30 (RI: 0, 10-0, 50) in the preoperative period to 0.80 (RI: 0, 50-1, 00) in the postoperative period. Complications were minimal, with cystoid macular edema being the most frequent. Conclusions: Phacotrabeculectomy by two ways is effective in lowering intraocular pressure, reducing the number of medications, and achieving improvement in visual acuity. It can be considered safe due to the low frequency of complications.

Cataract versus combined surgery in pseudoexfoliation glaucoma

Purpose: Pseudoexfoliation glaucoma (XFG) is often associated with a higher rate of intraoperative complications and failure. This study aims to compare the long?term clinical and surgical outcomes of cataract surgery alone versus combined surgery in XFG. This was a retrospective comparative case series. Methods: All patients with XFG who underwent either cataract surgery alone [group 1: either phacoemulsification, PHACO/small?incision cataract surgery (SICS), n = 35] or combined surgery (group 2: phacotrabeculectomy, PHACOT or SICS + trabeculectomy, n = 46) from 2013 to 2018 by a single trained surgeon were screened and recalled for a detailed clinical examination, including Humphrey visual field analysis at 3?monthly intervals for a minimum of 3 years. Surgical success (intraocular pressure, IOP, <21 mm Hg and >6 mm Hg with (qualified success) or without medicines, complete success, survival rates, visual field changes, and need for additional procedures/medicines for IOP control were compared between groups. Results: A total of 81 eyes of 68 patients with XFG were included in this study (groups 1–35 eyes and groups 2–46 eyes each). Both groups achieved 27–40% IOP reduction from preoperative IOP levels, P < 0.001. Surgical success rates were similar in both groups (complete success 66% vs 55%, P = 0.4), qualified success 17% vs 24%, P = 0.8, in groups 1 and 2). Kaplan–Meier analysis showed a marginally better survival rate for group 1, 75% (55–87%), than group 2, 66% (50–78%), at 3 and 5 years which was not significantly different. The number of eyes that progressed at 5 years after surgery (5–6%) was similar in both groups. Conclusion: Cataract surgery can be as effective as combined surgery in XFG eyes with regards to final visual acuity, long?term IOP profile, and visual field progression, and complications/survival rates are comparable between the two procedures.

A comparative analysis of surgical outcome in uveitic and non-uveitic steroid–induced glaucoma in children

Purpose: To compare outcomes of surgical management of uveitic glaucoma (UG) and steroid?induced glaucoma (SIG) in children in terms of intraocular pressure (IOP) control, visual acuity, and associations for failure. Methods: This was a retrospective case–control study of consecutive UG (cases) and non?uveitic SIG (controls) in children <18 years of age who underwent surgery between January 2005 and December 2017. Results: Primary trabeculectomy with mitomycin C (MMC) was performed in 12 cases (mean age: 9.2 ± 4.3 years) and 40 controls (mean age: 10.4 ± 3.7 years) (P = 0.33). Primary phaco?trabeculectomy with MMC was performed in 11 cases (mean age: 11.4 ± 4.7 years) and 16 controls (mean age: 10.4 ± 3.4 years) (P = 0.57). IOP control (P = 0.26), visual acuity (P = 0.97), number of glaucoma medications (P = 0.06), and survival rates (49% cases vs. 68% controls at 5 years; P = 0.22) were similar between the two groups following trabeculectomy. Survival rates in the phaco?trabeculectomy group at 5 years were 68% cases vs. 69% controls (P = 0.71). IOP was higher (P = 0.008) and visual acuity was worse (P = 0.02) in cases at the last visit. Associations for failure (univariate analysis) were younger age (OR: 6.29, 95% CL: 1.43, 27.67; P = 0.03) and male gender (OR: 4.79, 95% CL: 1.09, 20.97; P = 0.04). On multivariate analysis, younger age (OR: 11.985, 95% CL: 1.071, 134.153; P = 0.04) remained significant. Preoperative number of uveitic attacks was protective on univariate (OR: 0.75, 95% CL: 0.48, 1.15; P = 0.1) and multivariate analyses (OR: 0.49, 95% CL: 0.24, 0.09; P = 0.04). Conclusion: Outcomes of trabeculectomy between cases and controls were similar in our series. However, phaco?trabeculectomy in pediatric uveitic eye group fared worse than eyes with SIG.

Ologen implant versus mitomycin C in combined trabeculectomy and phacoemulsification

Purpose: To comparatively evaluate in Indian eyes with coexisting cataract and primary open?angle glaucoma the outcome of mitomycin C (MMC) and Ologen implant as adjunctives in combined phacoemulsification with trabeculectomy. Methods: Eyes with primary open?angle glaucoma that underwent trabeculectomy and phacoemulsification with IOL implantation with either MMC application or Ologen implant between June 2019 and February 2020 were followed up for 12 months. Thirty?four eyes of 34 participants were studied. The primary outcome was intraocular pressure (IOP), and the secondary outcomes were the number of ocular hypotensives, best distance visual acuity (BDVA), and bleb morphology. Results: In 16 eyes treated with MMC and 18 eyes treated with Ologen implant, it was observed that the mean postoperative IOP (14.62 � 2.89 mm Hg with MMC and 14.56 � 4.14 mm Hg with Ologen implant) was not significantly different in both groups (P = 0.47). Number of ocular hypotensives and BDVA were also comparable between the two groups. However, bleb morphology was better with Ologen implantation. One eye in the MMC group developed hypotony which was conservatively managed. Conclusion: MMC and Ologen are both effective adjunctives in combined phaco?trabeculectomy. However, the Ologen implant provides better bleb health and safety

Facotrabeculectomía por dos vías como tratamiento combinado de pacientes con glaucoma y catarata / Two-site phacotrabeculectomy as combined therapy for patients with glaucoma and cataract

RESUMEN Objetivo: Determinar los resultados de la facotrabeculectomía por dos vías como tratamiento combinado de pacientes cubanos con glaucoma y catarata. Métodos: Se realizó un estudio observacional descriptivo longitudinal prospectivo en pacientes adultos cubanos tratados con facotrabeculectomía en el Servicio de Glaucoma del Instituto Cubano de Oftalmología "Ramón Pando Ferrer" entre junio del año 2016 y abril de 2017. El universo estuvo constituido por todos los pacientes operados con facotrabeculectomía por dos vías. La muestra la integraron pacientes operados por un mismo cirujano, quienes estuvieron de acuerdo con participar en la investigación. Se excluyeron aquellos con cirugía intraocular previa. Salieron del estudio los que no pudieron mantener el seguimiento en la institución. Se estudiaron las variables edad, sexo, color de la piel, agudeza visual mejor corregida, presión intraocular, número de medicamentos hipotensores oculares y complicaciones presentadas. El seguimiento fue por dos años con consultas al día siguiente, a los siete y a los treinta días; a los tres y a los seis meses; al año y a los dos años. Resultados: Se observaron 31 pacientes. La edad promedio fue de 70 años, con predominio del sexo femenino y el color de la piel no blanco; la agudeza visual mejor corregida preoperatoria media 0,58 y la posoperatoria 0,73. La presión intraocular media preoperatoria 22,04 mmHg y a los dos años 16,37 mmHg. La media de los medicamentos hipotensores preoperatorios fue 3,0 y 0,3 a los dos años. Las complicaciones más frecuentes resultaron la ruptura transquirúrgica de la cápsula posterior y la opacidad posquirúrgica de la cápsula posterior. Conclusiones: Con la facotrabeculectomía por dos vías disminuye la presión intraocular; mejora la agudeza visual mejor corregida y se reduce el número de fármacos hipotensores oculares al menos durante dos años. Las complicaciones asociadas a la técnica son mínimas(AU)

ABSTRACT Objective: Determine the results of two-site phacotrabeculectomy as combined therapy for Cuban patients with glaucoma and cataract. Methods: An observational prospective longitudinal descriptive study was conducted of Cuban patients undergoing phacotrabeculectomy at the Glaucoma Service of Ramón Pando Ferrer Cuban Institute of Ophthalmology from June 2016 to April 2017. The study universe was all the patients undergoing two-site phacotrabeculectomy. The sample was patients operated on by the same surgeon who consented to participate in the research. Patients with a history of intraocular surgery were excluded, as well as those who could not be followed up at the institution. The variables considered were age, sex, skin color, best corrected visual acuity, intraocular pressure, number of ocular hypotensive drugs, and complications developed. Follow-up extended for two years with visits on the next day, at seven and thirty days, at three and six months, and at one and two years. Results: Thirty-one patients were observed. Mean age was 70 years, with a predominance of the female sex and non-white skin color. Best corrected visual acuity was 0.58 preoperative and 0.73 postoperative. Mean preoperative intraocular pressure was 22.04 mmHg, whereas at two years it was 16.37 mmHg. Hypotensive drugs averaged 3.0 preoperative and 0.3 at two years. The most common complications were intraoperative posterior capsule rupture and postsurgical posterior capsule opacity. Conclusions: Two-site phacotrabeculectomy reduces intraocular pressure, improves best corrected visual acuity and lowers the number of ocular hypotensive drugs for at least two years. The complications associated to the technique are minimum(AU)

Surgically induced astigmatism and refractive outcomes following phacotrabeculectomy

Purpose: To objectively evaluate surgically induced astigmatism (SIA) after phacotrabeculectomy using keratometry and topography and to compare the magnitude of SIA and the refractive outcomes of single-site and twin-site phacotrabeculectomies. Methods: Forty prospective subjects were enrolled in the study and were randomized into single-site and twin-site cohorts. SIA was objectively assessed using keratometry and Orbscan before and at three months after surgery. For both cohorts, the changes in SIA were assessed using power vector analysis compared at the third month after surgery. Results: Each cohort consisted of 20 eyes. The preoperative parameters and postoperative IOP were comparable and similar, respectively, in both the cohorts (P = 0.1). Majority of the patients in both the cohorts had preoperative against-the-rule (ATR) astigmatism. The median change in SIA at the three-month postoperative visit was similar in both the cohorts, with a small increase in ATR astigmatism. Although the SIA change measured by keratometry in the J0 component was similar in both the groups (P = 0.54), that of J45 was significantly different (P = 0.01). However, the median change in SIA was similar in both the groups for both the J0 (P = 0.52) and J45 components (P = 0.94) when measured by Orbscan. The SIA in both the groups measured with keratometry (P = 0.62) and topography (P = 0.52) were clinically and statistically similar. In both the groups, the refraction was similar at 1 month and 3 months. Conclusion: The SIA as measured with keratometry and topography was similar in the single-site and twin-site phacotrabeculectomy cohorts at the end of 3-months. The postoperative refraction was stabilized in 1-month in both the groups.

New superior modified fornix-based twin-site phacotrabeculectomy

Phacotrabeculectomy is the preferred surgical management of coexisting visually significant cataract and moderate to advanced glaucoma. We report the surgical technique of a new modified fornix-based separate-site phacotrabeculectomy, with mitomycin C (MMC) application, in both primary open angle and angle closure glaucoma. In this new separate-site technique, both phaco and filtration are accommodated superiorly, side by side, hence called twin-site. This was achieved in an efficacious and safe manner with sparing of limbal stem cells without compromising safety. It is not only MMC-compatible but also has a low incidence of wound leak. The technique has no adverse consequence on the survival of the bleb, and we achieved complete success in 79.2% and total success in 93.1% in 130 eyes of 117 patients, in the intermediate term. Furthermore, the time taken for this separate-site surgical technique is comparable to published one-site procedures.

Effect of trabeculectomy and phacoemulsification combined with trabeculectomy on the ocular surface / 国际眼科杂志(Guoji Yanke Zazhi)

@#AIM: To compare the effects of trabeculectomy and phacotrabeculectomy on the ocular surface using ocular Keratograph 5M.<p>METHODS: Totally 62 eyes of 62 patients with coexisting primary angle-closure glaucoma(PACG)and cataract were recruited. Thirty-two eyes accepted trabeculectomy, and the remaining thirty eyes accepted phacotrabeculectomy. Ocular surface parameters, including noninvasive first tear film break-up time(NifTBUT), noninvasive average tear film break-up time(NiaTBUT), corneal fluorescein staining scores(CFS)and tear meniscus height(TMH), were analyzed preoperatively, 3d, 1mo and 3mo postoperatively, with ocular Keratograph 5M.<p>RESULTS: There was no significant difference in ocular surface parameters between the two groups preoperatively(<i>P</i>>0.05). The values of NifTBUT, NiaTBUT, CFS and TMH in phacotrabeculectomy eyes were at the worse levels, <i>i.e.</i> 10.13±1.48s, 12.59±1.96s, 0.80±0.22 and 0.31±0.02mm, respectively at 3d postoperatively, then improved gradually at 1mo postoperatively, but did not return to the preoperative levels at 3mo postoperatively.<p>CONCLUSION: Ocular Keratograph 5M can be used to evaluate the changes of tear film in combined anti-glaucoma surgery accurately. The effects of phacotrabeculectomy on ocular surface are worse than that of trabeculectomy during 3mo after surgery. It is suggested that more eye care should be paid during that period of time.

Clinical observation of the ocular surface changes through one-site versus two-site phacotrabeculectomy / 国际眼科杂志(Guoji Yanke Zazhi)

@#AIM: To compare the ocular surface changes of one-site versus two-site phacotrabeculectomy in angle-closure glaucoma associated with cataract.<p>METHODS: This retrospective, randomized study included 52 patients(52 eyes)with coexisting angle-closure glaucoma and cataract. The patients were randomly divided into 2 groups: one group had the phacotrabeculectomy in the superior quadrant through the same incision(one-site group; <i>n</i>=26), while the other group had the trabeculectomy through a superior quadrant incision, and the phacoemulsification through another separate, temporal, clear corneal incision(two-site group; <i>n</i>=26). In each group, the values such as tear break-up time(BUT), Schirmer I test(SⅠt), and corneal fluoresce(FL)in staining score were measured at 1d, 1wk, 1mo and 3mo postoperatively.<p>RESULTS: All patients were operated under local anesthesia and followed up for 3mo. The SⅠt of two-site group and one-site group 1wk and 1mo postoperatively were significantly shorter than those before the operation(<i>P</i><0.01). The SⅠt of two-site group were significantly shorter than those of one-site group 1wk and 1mo postoperatively(<i>P</i><0.05). The FL scores of two-site group were significantly higher than those of one-site group 1wk postoperatively(<i>P</i><0.05). However, 1mo postoperatively, the FL scores of two groups were basically equal(<i>P</i>>0.05). Three months postoperatively,the BUT, SⅠt and FL were basically equal to the preoperative level(<i>P</i>>0.05).<p>CONCLUSION: Phacotrabeculectomy through two incisions is more likely to affect the ocular surface, and those abnormal related values appear in the early 1mo postoperatively.

Refractive Error Induced by Combined Phacotrabeculectomy

PURPOSE: We evaluated the postoperative accuracy of intraocular lens power prediction for patients undergoing phacotrabeculectomy and identified preoperative factors associated with refractive outcome in those with primary open-angle glaucoma (POAG). METHODS: We retrospectively reviewed the medical records of 27 patients who underwent phacotrabeculectomy to treat POAG. We recorded all discrepancies between predicted and actual postoperative refractions. We compared the data to those of an age- and sex-matched control group that underwent uncomplicated cataract surgery during the same time period. Preoperative factors associated with the mean absolute error (MAE) were identified via multivariate regression analyses. RESULTS: The mean refractive error of the 27 eyes that underwent phacotrabeculectomy was comparable to that of the 27 eyes treated via phacoemulsification (+0.02 vs. −0.01 D, p = 0.802). The phacotrabeculectomy group exhibited a significantly higher MAE (0.65 vs. 0.35 D, p = 0.035) and more postoperative astigmatism (−1.07 vs. −0.66 D, p = 0.020) than the phacoemulsification group. The preoperative anterior chamber depth (ACD) and the changes in the postoperative intraocular pressure (IOP) were significantly associated with a greater MAE after phacotrabeculectomy. CONCLUSIONS: POAG treatment via combined phacoemulsification/trabeculectomy was associated with greater error in terms of final refraction prediction, and more postoperative astigmatism. As both a shallow preoperative ACD and a greater postoperative change in IOP appear to increase the predictive error, these two factors should be considered when planning phacotrabeculectomy.

Resultados a corto plazo de la facotrabeculectomía por una vía en el Instituto Cubano de Oftalmología Ramón Pando Ferrer / Short-term outcomes of one-site phacotrabeculectomy at Ramón Pando Ferrer Cuban Institute of Ophthalmology

Objetivos: describir los resultados a corto plazo de la facotrabeculectomía por una vía. Métodos: se realizó un estudio descriptivo de series de casos en 19 ojos de 18 pacientes tratados con facotrabeculectomía por una vía y por un mismo cirujano del Departamento de Glaucoma del Instituto Cubano de Oftalmología Ramón Pando Ferrer, entre los meses de febrero y octubre del año 2016. Se controlaron las siguientes variables: edad, sexo, color de piel (blanco o negro), número de fármacos hipotensores, agudeza visual mejor corregida, presión intraocular, estadio de daño glaucomatoso, tipo de glaucoma y complicaciones posquirúrgicas con seguimiento durante tres meses. Resultados: la edad promedio de la muestra fue 69 ± 12 años, igual número de masculinos y femeninos. Predominó el glaucoma primario de ángulo abierto y el color de piel negra. En el preoperatorio la presión intraocular media fue 22,5 ± 5,9 mmHg; la agudeza visual mejor corregida 51,77 ± 31,89 VAR y el número de fármacos hipotensores 3,2 ± 0,5. A los tres meses posoperatorios la presión intraocular media fue 15,6 ± 4,3 mmHg (p< 0,05); la agudeza visual mejor corregida 71,15 ± 33,05 VAR y el número de fármacos hipotensores 0,7 ± 1 (p< 0,05). Las complicaciones posquirúrgicas fueron atalamia, desprendimiento coroideo y quiste de Tenon. Conclusiones: la facotrabeculectomía por una vía constituye una alternativa quirúrgica que ofrece a pacientes con glaucoma y catarata el control de la presión intraocular, la recuperación visual, la reducción del número de fármacos hipotensores oculares y mínimas complicaciones(AU)

Objectives: describe the short-term outcomes of one-site phacotrabeculectomy. Methods: a descriptive case-series study was conducted of 19 eyes of 18 patients treated with one-site phacotrabeculectomy by the same surgeon at the Glaucoma Department of Ramón Pando Ferrer Cuban Institute of Ophthalmology from February to October 2016. The variables evaluated were age, sex, skin color (black or white), number of hypotensive drugs, best corrected visual acuity, intraocular pressure, glaucomatous damage, glaucoma type and postsurgical complications during a three-month follow-up. Results: mean age of the sample was 69 ± 12 years, with an equal number of males and females. There was a predominance of primary open-angle glaucoma and black skin color. In the preoperative period mean intraocular pressure was 22.5 ± 5.9 mmHg, best corrected visual acuity was 51.77 ± 31.89 VAR, and the number of hypotensive drugs was 3.2 ± 0.5. Three months after surgery mean intraocular pressure was 15.6 ± 4.3 mmHg (p< 0.05), best corrected visual acuity was 71.15 ± 33.05 VAR and the number of hypotensive drugs was 0.7 ± 1 (p< 0.05). The postoperative complications were athalamia, choroidal detachment and Tenon cyst. Conclusions: one-site phacotrabeculectomy is a surgical alternative offering patients with glaucoma and cataract intraocular pressure control, visual recovery, a reduction in the number of hypotensive drugs, and minimal complications(AU)

Comparison of Postoperative Refractive Outcomes after Phacotrabeculectomy and Phacoemulsification Subsequent to Trabeculectomy

PURPOSE: To compare the refractive outcomes in patients following either combined or sequential trabeculectomy and phacoemulsification. METHODS: Evaluation of the medical records of patients who underwent one of three treatment combinations on their eyes including combined phaco-trabeculectomy (47 eyes), a sequential phacoemulsification procedure, at least 3 months following trabeculectomy (33 eyes), and phacoemulsification alone (48 eyes). RESULTS: There were no significant differences among the three groups in characteristics such as age, sex, axial length, the postoperative spherical equivalent (SE) and refractive prediction error (RPE) at 1 week and 2 months post procedure. Significant differences existed between the three groups in terms of preoperative intraocular pressure, predicted SE, and the mean absolute error (MAE) at 1 week and 2 months post procedure. The proportions of cases with a RPE > 1.0 diopter (D) or <−1.0 D were significantly different between the three groups. CONCLUSIONS: There were significant differences between the three groups in terms of the MAE at 1 week and 2 months after surgery. With respect to the predicted SE, phacotrabeculectomy seems to be less accurate than the phacoemulsification alone. Therefore, careful consideration should be given to the selection of the intraocular lens power.

Comparison of incidence of ptosis after combined phacotrabeculectomy with mitomycin C and phacoemulsification.

Objective: To compare the incidence of upper eyelid blepharoptosis after combined phacotrabeculectomy with mitomycin C and phacoemulsification surgeries and the relationship of bleb morphology to the incidence of ptosis. Design: Retrospective observation study. Participants: We included 46 patients after combined phacotrabeculectomy and 44 patients with phacoemulsification in the former group, and all eyes underwent a standardized two‑site surgery with intra‑operative mitomycin C. Materials and Methods: Postoperative ptosis was defined as a reduction of upper marginal reflex distance 2 mm in the operated eye compared to the fellow eye. Trabeculectomy bleb measurements were carried out using anterior segment optical coherence tomography (VisanteTM, Carl Zeiss Meditec, Dublin, CA, USA) which included bleb height and total area of the bleb. Results: There were 8 eyes (17.4%) and 5 eyes (11.4%) with postoperative ptosis in the phacotrabeculectomy and phacoemulsification groups, respectively (P = 0.342). In multivariate regression analysis, reduced total bleb area was significantly associated with upper eyelid ptosis after adjusting for age, gender, and type of anesthesia. The trend seemed to show that increased bleb height was also associated with ptosis, but this did not reach statistical significance. Conclusions: Incidence of persistent ptosis after phacoemulsification combined with trabeculectomy and mitomycin C is similar compared to stand alone phacoemulsification surgery in a multiethnic Asian population. Bleb morphology may play an important role in postoperative ptosis development and should be considered in the evaluation of upper eyelid blepharoptosis.

Meta-analysis of phacoemulsification versus phacotrabeculectomy for primary angle closure glaucoma with cataract / 中华实验眼科杂志

Background Increase of lens thickness at incipient cataract is a key factor of onset of primary angle-closure glaucoma (PACG).Phacoemulsification (Phaco) or phacotrabeculectomy (Phacotrabe) have been documented to be effective for the patients of PACG associated with cataract.However,which surgery is more effective and safe is lack of evidence.Objective This study was to assess and compare the clinical effectiveness of Phaco versus Phacotrabe for PACG with cataract.Methods The relevant literature was searched electronically from the PubMed (1966 to June 2011),EMB Reviews (1966 to June 2011) and Cochrane Library (Issue 1,2011).The manually searching of relevant conference proceedings was used as the supplement.The articles of randomized controlled trial (RCT) about the clinical effectiveness of Phaco versus Phacotrabe for PACG with cataract were included.The methodology quality of included literature was graded.The analysis indexes included intraocular pressure (IOP)-lowing range,postoperative administration of glaucoma drugs,incidence of positive complication,postoperative best corrective visual acuity (BCVA) and perimetry damage.The RevMan4.2 software from Cochrane Collaboration was used for the Meta analyses.Results Three RCTs about phaco versus Phacotrabe for PACG with cataract were selected in this study with the 164 eyes of 164 cases.Meta analysis showed that the IOP-lowing range was larger in the Phacotrabe group compared to only Phaco group with the WMD of 1.17 and 95％ CI of 0.06-2.27 (P =0.040),and the drug dosage of anti-glaucoma was less in the Phacotrabe group in comparison with the Phaco group with the WMD of 0.5 and 95％ CI of 0.24-0.77 (P =0.000).However,the incidence of postoperative complication was higher in the Phacotrabe group than that of the Phaco group with the RR of 0.08 and 95％ CI of 0.02-0.33 (P =0.000).No significant difference was found in the BCVA (WMD =0,95％ CI:-0.13-0.13,P=1.00) andperimetry (WMD =1.01,95％CI:0.56-1.82,P=0.98).Conclusions Compared with Phaco,Phacotrab has a better IOP-lowing effectiveness and slightly worse safety.Phaco and Phacotrab have a fairly influencc in the postoperative BCVA and perimetry.As the sample sizes of the included trials are relatively small,more welldesigned large-scale RCTs are needed.

Comparison of Filtering-Bleb Survival and Intraocular Pressure between Combined Phacotrabeculectomy and Trabeculectomy in Primary Glaucomas

PURPOSE: To evaluate clinical results of combined phacotrabeculectomy (PHACO-TRAB) and trabeculectomy (TRAB) for primary open-angle glaucoma (POAG) and primary angle-closure glaucoma (PACG). METHODS: Forty-two eyes of 42 patients with POAG and 60 eyes of 60 patients with PACG were studied retrospectively. Fifty-two patients underwent PHACO-TRAB and 50 patients underwent TRAB. The IOP, number of anti-glaucoma medications, and duration of filtering bleb survival for 3 years after surgery were compared. RESULTS: For 12 months after surgery, the TRAB group maintained significantly lower IOP than the PHACO-TRAB group (p < 0.05, t-test), and there was no significant difference thereafter. The filtering bleb survival rate was significantly higher in the TRAB group during the study period. In patients with POAG, the TRAB group showed higher filtering bleb survival rate for 3 years (p = 0.016, log-rank test). However, in patients with PACG, there was no significant difference in filtering bleb survival between the 2 groups. In patients with POAG, the TRAB group maintained significantly lower IOP for 12 months after surgery, and there was no significant difference afterwards. In patients with PACG, the TRAB group maintained lower IOP only at 1, 3, and 6 months after surgery. However, the PHACO-TRAB group showed significantly lower IOP at 18 months and 36 months after surgery. CONCLUSIONS: In patients with POAG, TRAB was more effective in lowering IOP and maintaining filtering bleb. However in patients with PACG, there was no difference in filtering bleb survival between the 2 groups. TRAB was more effective in maintaining IOP during the early period after surgery, but PHACO-TRAB was superior to TRAB beyond 1 year after surgery in patients with PACG.

Comparison of Filtering-Bleb Survival and Intraocular Pressure between Combined Phacotrabeculectomy and Trabeculectomy in Primary Glaucomas

PURPOSE: To evaluate clinical results of combined phacotrabeculectomy (PHACO-TRAB) and trabeculectomy (TRAB) for primary open-angle glaucoma (POAG) and primary angle-closure glaucoma (PACG). METHODS: Forty-two eyes of 42 patients with POAG and 60 eyes of 60 patients with PACG were studied retrospectively. Fifty-two patients underwent PHACO-TRAB and 50 patients underwent TRAB. The IOP, number of anti-glaucoma medications, and duration of filtering bleb survival for 3 years after surgery were compared. RESULTS: For 12 months after surgery, the TRAB group maintained significantly lower IOP than the PHACO-TRAB group (p < 0.05, t-test), and there was no significant difference thereafter. The filtering bleb survival rate was significantly higher in the TRAB group during the study period. In patients with POAG, the TRAB group showed higher filtering bleb survival rate for 3 years (p = 0.016, log-rank test). However, in patients with PACG, there was no significant difference in filtering bleb survival between the 2 groups. In patients with POAG, the TRAB group maintained significantly lower IOP for 12 months after surgery, and there was no significant difference afterwards. In patients with PACG, the TRAB group maintained lower IOP only at 1, 3, and 6 months after surgery. However, the PHACO-TRAB group showed significantly lower IOP at 18 months and 36 months after surgery. CONCLUSIONS: In patients with POAG, TRAB was more effective in lowering IOP and maintaining filtering bleb. However in patients with PACG, there was no difference in filtering bleb survival between the 2 groups. TRAB was more effective in maintaining IOP during the early period after surgery, but PHACO-TRAB was superior to TRAB beyond 1 year after surgery in patients with PACG.

Phacoemulsification versus Combined Phacotrabeculectomy in Closed-Angle Patients with Re-Elevated Intraocular Pressure after Peripheral Iridotomy

PURPOSE: To investigate the clinical courses between phacoemulsification (PE) and PE with combined trabeculectomy (phacotrabeculectomy, PETL) in closed-angle patients with re-elevated intraocular pressure (IOP) after laser peripheral iridotomy (LPI). METHODS: Closed-angle patients whose IOP re-elevated between 19 and 38 mm Hg after LPI were included. Medical records of 26 patients in the PE group and 21 patients in the PETL group who were followed for more than 12 months after surgery were reviewed for clinical course. RESULTS: The IOP courses after surgery showed no statistical difference during the study period except at 1 and 7 days after surgery, in which IOP in the PETL group were lower than that in the PE group. The number of anti-glaucoma drugs also showed no significant difference except at 6 months, when the number was greater in the PE group. Success rates for IOP below 18 mm Hg at 3 years were 96.2% in the PE group, higher than the 69.8% in the PETL group (Log Rank test, p = 0.015). Postoperative complications were found in 2 patients in the PE group and in 8 patients in the PETL group (Fisher's exact test, p = 0.028). CONCLUSIONS: We suggest that PE is a viable surgical alternative to PETL in closed-angle patients who have mildly re-elevated IOP after LPI.

One-site versus two-site phacotrabeculectomy in chronic angle-closure glaucoma with cataract / 国际眼科杂志(Guoji Yanke Zazhi)

AIM:To compare one-site vs two-site phacotrabe-culectomy in chronic angle-closure glaucoma (CACG) coexisting with cataract.METHODS:This prospective, randomized study included 41 eyes with CACG. One-site approach was performed in 21 eyes and two-site procedure in 20 eyes. Intraocular pressure (IOP), best-corrected visual acuity (BCVA), the number of antiglaucoma medications and complications were observed. All patients were followed up for 9 months.RESULTS:There were no significant differences between the two groups preoperatively. IOP decreased from 22.7±4.9mmHg and 23.7±4.7mmHg preoperatively in one-and two-site groups to 18.0±1.2mmHg and 16.7±1.1mmHg 9 months after operation respectively(P<0.05). There were no significant differences in mean IOP between the two groups at any time (P>0.05). Decrease of the number of antiglaucoma medications and BCVA improvement were similar in both groups 9 months after surgery (P>0.05).There were no significant differences in complications between the two surgical procedures.CONCLUSION:There were no significant differences between the two groups in clinical efficacy and complications.

Treatment Outcome of Phacotrabeculectomy and Trabeculectomy in Patients with Cataracts and Glaucoma

PURPOSE: To compare the treatment outcome and complications of phacotrabeculectomy and trabeculectomy in patients with glaucoma and cataracts. METHODS: The authors of the present study retrospectively reviewed the records of 56 eyes that underwent phacotrabeculectomy and trabeculectomy with mitomycin-C between March 2006 and December 2009 in patients with glaucoma and cataracts. The change of intraocular pressure (IOP) and number of glaucoma medications up to 24 months postoperatively were compared and the treatment failure rate as well as postoperative complications analyzed. RESULTS: IOP and number of glaucoma medications at 24 months after surgery were similar in the 2 groups. Additionally, both groups showed a significant decrease in IOP and number of glaucoma medications after surgery. The cumulative failure rates, frequency and distribution of postoperative complications were also similar in both groups and conjunctival bleb leak was the most common complication. CONCLUSIONS: Both phacotrabeculectomy and trabeculectomy showed long-term IOP reduction and a similar failure rate and complications. Therefore, both can be considered as a primary surgical treatment in patients with glaucoma and cataracts. In patients who need strict IOP control, trabeculectomy can be preferentially considered. If patients have visually significant cataracts or greater visual needs, phacotrabeculectomy can be considered.

Efficacy and tolerability of one-site versus two-site phacotrabeculectomy: a meta-analysis / 国际眼科杂志(Guoji Yanke Zazhi)

AIM: To evaluate the efficacy and tolerability of one-site versus two-site phacotrabeculectomy in the treatment of patients with coexisting cataract and glaucoma. METHODS: A comprehensive literature meta-analysis was performed according to the Cochrane Collaboration methodology to identify controlled clinical trials comparing one-site with two-site phacotrabeculectomy. The studies meeting the predefined criteria were reviewed systematically by meta-analysis. Efficacy estimates were measured by standardised mean difference (SMD) for the percentage intraocular pressure (IOP) reduction from baseline to end point, odds ratio (OR) for the percentage having a best-corrected visual acuity (BCVA) of 0.5 or better after surgery and relative risk (RR) for complete success rates. Tolerability estimates were measured by RR for adverse events. All of outcomes were reported with 95% confidence interval (CI). Data were synthesised by Stata 10.1 for Windows. RESULTS: Two-site phacotrabeculectomy was associated with numerically greater, and significant efficacy than one-site in lowering IOP(SMD,-0.19;95% CI, -0.33 to -0.04; P=0.01). Numerically greater, but nonsignificant proportions of two-site patients than one-site patients had a BCVA of 0.5 or better (OR, 0.65; 95% CI, 0.30 to 1.39; P=0.26).Numerically greater, but nonsignificant proportions of two-site patients than one-site patients achieved the target IOP without anti-glaucoma medication at the end point (RR, 0.94; 95% CI, 0.84 to 1.04; P=0.22). Furthermore, there was no significant difference in adverse events between two surgical procedures.CONCLUSION: The efficacy of two-site phacotrabeculectomy appears to be superior to one-site phacotrabeculectomy. One-site and two-site phacotrabeculectomy are similarly tolerable in postoperative adverse events.