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AIM:To investigate the clinical efficacy of minimally invasive foldable capsular buckle(FCB)scleral buckling in treating rhegmatogenous retinal detachment(RRD).METHOD: This retrospective study enrolled 11 patients(11 eyes)with RRD treated with minimally invasive FCB scleral buckling at the Hainan Traditional Chinese Medicine Hospital from May to July 2023. The surgeries were performed without subconjunctival anesthesia, extraocular muscle pulling, intraocular positioning, retinal cryotherapy or drainage of subretinal fluid, or FCB suture fixation. Furthermore, the best corrected visual acuity(BCVA), intraocular pressure and complications were observed.RESULTS: Minimally invasive FCB scleral buckling was performed on 11 eyes, with successful retinal reattachment in 10 eyes(91%), and the remaining 1 eye(9%)had postoperative retinal re-detachment and underwent vitrectomy with silicone oil filling for multiple retinal tears. One-time successful surgery was in 4 eyes(40%), gas injection in vitreous body after the surgery was performed in 1 eye(10%), FCB position adjustment after the surgery was performed in 3 eyes(30%), gas injection in vitreous body and FCB position adjustment after the surgery were performed in 2 eyes(20%); and FCB was removed 4-12 wk after the surgery in 5 eyes(50%), without retinal redetachment. The average BCVA(LogMAR)of the 10 eyes improved from 1.30±1.10 before surgery to 0.37±0.39 at 4 wk after surgery(P<0.01); the average preoperative intraocular pressure was 11.51±3.37 mmHg and 13.72±2.57 mmHg at 4wk after surgery(P>0.05). No serious complications occurred.CONCLUSION:Minimally invasive FCB scleral buckling effectively treats RRD with minimal injury, simple operation, time-saving, and fewer complications.
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Objetivo: Caracterizar los resultados refractivos del implante de una lente intraocular plegable de cámara posterior suturada al iris en la afaquia sin o con inadecuado soporte capsular. Métodos: Se realizó un estudio descriptivo, prospectivo y longitudinal, en el que se incluyeron 30 pacientes (30 ojos) seguidos por un período de un año de septiembre de 2019 a septiembre de 2021, después del implante de una lente intraocular de cámara posterior suturada al iris en la afaquia. Se les realizó examen oftalmológico completo y se evaluaron variables como mejor agudeza visual sin corrección, con corrección, resultados refractivos, presión intraocular, astigmatismo inducido, densidad celular y complicaciones. Resultados: La mejor agudeza visual sin corrección en el preoperatorio fue del 93,3 % (<0,1) y con corrección de 0,66, al año del posoperatorio fue de 0,493/0,890, respectivamente. La presión intraocular preoperatoria fue de 20,7 mmHg, y al año 19,7 mmHg. La densidad celular en el preoperatorio fue de 1755,7 cél/mm2 y al año fue de 1363,8 cél/mm2, y en los pacientes bien corregidos al mes del posoperatorio fue de 73,4 % y al año de 70 %. El astigmatismo inducido en el posoperatorio al año fue de -0,51 D. Conclusiones: La agudeza visual sin corrección y con corrección mejoran después del implante de una lente intraocular plegable de cámara posterior suturada al iris en la afaquia sin o con inadecuado soporte capsular. Predominan los pacientes bien corregidos, sin cambios en la presión intraocular y la complicación más frecuente fue el edema corneal.
Objective: To characterize the refractive outcomes of implanting a posterior chamber foldable intraocular lens sutured to the iris in aphakia without or with inadequate capsular support. Methods: A descriptive, prospective and longitudinal study was carried out, including 30 patients (30 eyes) followed up for a period of one year, from September 2019 to September 2021, after being implanted a posterior chamber intraocular lens sutured to the iris in aphakia. Complete ophthalmologic examination was performed and variables were assessed, such as best visual acuity without correction, with correction, refractive results, intraocular pressure, induced astigmatism, cell density and complications. Results: The best visual acuity without correction in the preoperative period was 93.3 % (<0.1) and 0.66 with correction; while one-year postoperative visual acuity was 0.493 and 0.890, respectively. Preoperative intraocular pressure was 20.7 mmHg, while it was 19.7 mmHg at one year. Preoperatively cell density was 1755.7 cells/mm2, and it was 1363.8 cells/mm2 at one year it; while in well-corrected patients, it was 73.4% at one month postoperatively and 70% at one year. Postoperative induced astigmatism at one year was -0.51 D. Conclusions: Both uncorrected and corrected visual acuity improve after implantation of a posterior chamber foldable intraocular lens sutured to the iris in aphakia without or with inadequate capsular support. Well-corrected patients predominate, with no change in intraocular pressure, while the most frequent complication was corneal edema.
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Objetivo: Caracterizar resultados visuales del implante de lente intraocular plegable de cámara posterior suturada al iris en la afaquia traumática de pacientes pediátricos. Métodos: Se realizó un estudio preexperimental, prospectivo, longitudinal con 17 niños, con seguimiento de un año. Se les realizó examen oftalmológico completo y se evaluaron variables como edad, sexo, lateralidad, mejor agudeza visual sin corrección, con corrección, resultados refractivos, presión intraocular, y complicaciones. Resultados: La edad promedio fue de 13,2 años, masculinos fueron el 64,7 %. La mejor agudeza visual sin corrección en el preoperatorio fue del 47,1 % <0,1 y con corrección de 0,7, al año del posoperatorio fue de 0,43/0,78, respectivamente. La presión intraocular preoperatoria fue de 14,1 mm Hg, y al año 14,71 mm Hg. La densidad celular en el preoperatorio fue de 2559.76 células/mm2 y al año de 2475,88 células/mm2. La hexagonalidad preoperatorio fue del 53,12 % y al año del 56,94 %. El cilindro preoperatorio -1,35 D y el 23,5 % presentó astigmatismo inducido al año del posoperatorio. Conclusiones: La aplicación del implante de lente intraocular plegable de cámara posterior suturada al iris en la afaquia traumática de pacientes pediátricos logra mejorar su agudeza visual y la complicación más frecuente fue el edema corneal.
Objective: To characterize visual outcomes of iris-sutured posterior chamber foldable intraocular lens implantation in traumatic aphakia in pediatric patients. Methods: A pre-experimental, prospective, longitudinal, pre-experimental study was performed with 17 children, with a one-year follow-up. A complete ophthalmologic examination was performed and variables such as age, sex, laterality, best visual acuity without correction, with correction, refractive results, intraocular pressure and complications were evaluated. Results: The average age was 13.2 years, 64.7% were male. The best visual acuity without correction preoperatively was 47.1 % <0.1 and with correction 0.7, one year postoperative visual acuity was 0.43/0.78, respectively. Preoperative intraocular pressure was 14.1 mm Hg, and at one year 14.71 mm Hg. Cell density preoperatively was 2559.76 cells/mm2 and at one year 2475.88 cells/mm2. The preoperative hexagonality was 53.12 % and at one year 56.94 %. Preoperative cylinder -1.35 D and 23.5 % presented induced astigmatism at one year postoperatively. Conclusions: The application of posterior chamber foldable intraocular lens implant sutured to the iris in traumatic aphakia in pediatric patients achieves improved visual acuity and the most frequent complication was corneal edema.
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The objective of the study was to evaluate the curative effect of a modified technique of scleral suture fixation with a four-loop foldable intraocular lens (IOL) for eye with inadequate capsule support. This was a retrospective study of 22 eyes with inadequate capsule support of 20 patients who underwent the scleral suture fixation technique with 9-0 polypropylene suture and foldable four-loop IOL implant. Preoperative and follow-up data were collected for all patients. The mean follow-up was 5.08 ± 0.48 months (range: 3–12 months). The mean pre- and postoperative log of minimum angle of resolution (logMAR) uncorrected distance visual acuity was 1.11 ± 0.32 versus 0.09 ± 0.09 (P < 0.001). The mean pre- and postoperative logMAR best corrected visual acuity was 0.37 ± 0.19 versus 0.08 ± 0.07 (P < 0.001). The intraocular pressure (IOP) increased briefly (range: 21–30 mmHg) in eight eyes on the first day postoperatively and returned to normal within 1 week. No IOP drops were used postoperatively. The IOP was 12–19.3 (13.72 ± 1.28) in this follow-up, which had no significant difference compared to the preoperative IOP (t = 0.34, P = 0.74). At this follow-up, there was no hyperemia, local hyperplasia, obvious scar, suture knots, or segment ends observed under the conjunctiva, as well as no pupil deformation or vitreous hemorrhage. The mean postoperative IOL decentration degree was 0.22 ± 0.08 mm. At the 7-day follow-up postoperatively, one side of the IOL was dislocated to the vitreous cavity in one case, which was resolved by reimplantation of a new IOL in time with the same technique. Scleral suture fixation technique of a four-loop foldable IOL was a feasible operation method for an eye with inadequate capsular support.
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AIM: To observe the clinical effect of foldable capsular vitreous body(FCVB)implantation on ocular trauma and silicone oil-dependent eyes.METHODS: A prospective case study was performed on 17 cases(17 eyes)with ocular trauma and silicone oil-dependent in the First Hospital of Changsha from October 2017 to April 2022. All patients underwent FCVB or silicone oil removal combined with FCVB implantation. The follow-up time was 6mo, and the visual acuity, intraocular pressure, ocular axes, normal external appearances and FVCB were observed at 1wk and 6mo after operation.RESULTS: Only 6 cases had visual acuity before operation, and there were no statistical differences in the visual acuity before and at 1wk and 6mo after operation(P>0.05). The intraocular pressure was low before operation, but it was elevated at 1wk and 6mo after operation. The axial length was unchanged at 1wk and 6mo after operation, and the appearance and structure of eyeball were well maintained, and FCVB was stable with no atrophy during the follow-up period.CONCLUSIONS: FCVB implantation can preserve the appearance of eyeball, and avoid atrophy of eyeball and repeated operation, which has favorable clinical application value in the treatment of ocular trauma and silicone oil-dependent eyes.
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AIM: To compare the effectiveness and complications of treating rhegmatogenous retinal detachment(RRD)with foldable capsule body(FCB)and scleral buckling(SB).METHODS: The clinical data of 81 patients(82 eyes)with RRD who underwent surgery at our hospital from March 2019 to April 2022 were retrospectively analyzed. The differences in retinal reattachment rate, best-corrected visual acuity, the absorption of subretinal fluid, postoperative discomfort and incidence of complications between the two treatments were compared.RESULTS: The retinal reattachment rate was 96% in the FCB group and 92% in the SB group, with no significant difference between the two groups(P>0.05). The best corrected visual acuity of the affected macular eyes was different in the both groups(P<0.01). Both groups effectively promoted the absorption of subretinal fluid. The operation time of FCB group was 16.50(12.75, 25.00)min, while it was 38.00(36.25, 41.75)min in the SB group(P<0.001). Patients in the FCB group also had significantly lower eyelid swelling and pain symptoms than those in the SB group(P<0.001). The visual analogue scale(VAS)score at 1d after operation was 1.00(0.00, 2.00)in the FCB group and 3.00(2.00, 3.00)in the SB group(P<0.001).CONCLUSION: FCB is a safe and effective surgical method to treat RRD that can alleviate patient's pain. Furthermore, FCB has a significantly shorter operation time and milder postoperative adverse reactions than SB.
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Purpose: To study and interpret Raman spectra of six explanted acrylic hydrophobic foldable intraocular lenses (HFIOLs) with grade six microvacuoles and to understand the possible mechanism for microvacuole formation. Methods: Clinical data, slit-lamp photographs, and optical microphotographs of the explanted analytes were obtained. RS of the analytes were registered using a confocal Raman microscope (Lab RAM HR Evolution, Horiba Jobin Yvon) and Horiba Lab Space 6 Spectroscopy Suite software. Data were interpreted by identifying the functional group and fingerprint region of the spectra about the available literature. Results: IOLs were explanted for visual impairment after an average interval of 11.2 years following implantation. Each of the HFIOLs exhibited distinctive and identical Raman bands at the frequency range of 200–1,800, 2,600–3,000, and 3,200–3,700 cm?1 which were identified with those reported in the literature. The unique bands and peaks of the spectra were specific to the functional groups, its ring and other stretching variations, hydroxyl group, and water molecule. A spike at 1,640 cm?1 revealed the presence of monomer and indicated material bioincompatibility of the samples. Conclusion: Raman spectroscopy (RS) was found specific and an effective tool to detect the material change in the HFIOL and constituents of polymer biomaterial about microvacuole formation and also suggested modification and development of a more biocompatible and non-biodegradable polymer blend where RS could be a monitoring tool.
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Background:Phacoemulsification requires a smaller incision, few or no stitches are needed and the patient's recovery time is usually shorter when using a foldable IOL.Limbal Relaxing Incisions, or LRIs, are partial thickness corneal incisions strategically placed to reduce or eliminate pre-existing astigmatism duringcataractsurgeryorrefractivelensexchangesurgery. Present study was aimed to evaluate the visual and refractive outcome in patients undergoing limbal relaxing incision during clear corneal phacoemulsification surgery with foldable intra ocular lens.Material And Methods:Present study was single-center, prospective, observational study, conducted in patients of age more than 18-75 years, with clear cornea and regular astigmatism on keratometry, with preoperative astigmatism more than or equal to 0.5D on keratometry, fit for phacoemulsification cataract surgery with foldable IOL.Result:A total of 44 eyes of 44 patients who for cataract phacoemulsification surgery, mean age of the patient was 56.98 ± 05.98 years. Refractive acceptance preoperatively was 0.50 D to 2.0 D.Onslit lamp examination showed most common Cataract Nucleus grade is NS 3 with PSC preoperatively. We observed improved diopteric difference by automated keratometry on postoperative 90th day as compared to preoperative values. Majority of patients had Preop Keratometric Difference (K1-K2) of 1.5 D, all required LRI Incisions length of 4 clock hours (60°).The difference between the visual acuity preoperatively and post operatively was found to be statistically significant with a p<0.01 by employing the statistical test Analysis of Variance (ANOVA). Visual outcome a change after limb relaxing incisions statistically significant. Keratometry changes preop and postop is statistically significant with p value <0.001.Conclusion:Visual and refractive outcome changes as improved best corrected visual acuity (BCVA), decrease in Corneal Astigmatism was noted in patients undergoing limbal relaxing incision during clear corneal phacoemulsification surgery with foldable intra ocular lens
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Background:Surgically induced astigmatism (SIA) is astigmatism that is created by incisions in cataract surgery; change in both the power and to a lesser degree, orientation of the principal meridians following a corneal incision. Prese nt study was aimed to study change in vision and astigmatic refractive error postoperativelyin patientsundergoing clear corneal phacoemulsificationsurgerywithfoldableintraocularlens.Material And Methods:Present study was hospital based, prospective, observational study, conducted in patients posted for phacoemulsification cataract surgery with foldable IOL with clear cornea and regular astigmatism on keratometry, with preoperative astigmatism more than or equal to 0.5D on keratometry, willing to participate in study.Result:In present study,44 eyes of 44 patients were considered for study. Mean age of the patient is 56.98 ± 5.98 years. There were 29 males and 15 females. Right eye surgery was done in 18 eyes and left eye surgery was done in 26 eyes. Refractive acceptance preoperatively was 0.50 D to 2.0 D. Mean IOL power was 22.7 ± 0.801. Preoperatively mainly eyes had best visual activity between 6/24 to 6/18 while visual activity range from 6/60 to 6/12. Improved vision postoperatively day 90th where vision was 6/6 unaided in 24 eyes out of44 eyes and 6/9 in 14 eyes respectively. Majority of patients had Preop Keratometric Difference (K1-K2) of 1.5 D, all required LRI Incisions length of 4 cloc k hours (60°). On postoperative 90th day, improved dioptric difference by automated keratometry ascompared to preoperative values. LRI was slightly more effective in patients above 50 years as compared to in patients below 50 years.Conclusion:In patientsundergoing clearcornealphacoemulsification surgery with foldable intra-ocular lens, postoperatively improved vision and reduced astigmatic refractive error is noted.
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Objective To fabricate a foldable microplate for single cell culture and establish finite element model of the folding microplate, so as to calculate traction force of single cells during contraction in three-dimensional (3D) state.Methods The folding angle of the microplate casued by cell traction force was calculated. Then the relation between bending moment and folding angle as well as the relation between traction force and bending moment were derived by using finite element simulation, so as to realize the characterization of traction force for singel cell in 3D state.Results The folding angles of the microplate with HSF and MC3T3-E1 cells in 3D state were 73°-173° and 49°-138°, respectively. The single cell traction forces of HSF and MC3T3-E1 cells were 55-210 nN and 52-161 nN, respectively.Conclusions The proposed method for measuring traction force of single cells in 3D state by fabricating the foldable microplate for single cell culture will provide some references for further development of calculating traction forces in 3D cell adhesion, spreading and migration.
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AIM: To analyze the effects of dual viscoelastic agents DisCoVisc and sodium hyaluronate on corneal endothelium of patients after phacoemulsification and foldable intraocular lens(IOL)implantation.METHODS: A total of 247 patients(285 eyes)with cataract treated in Jingmen Aier Eye Hospital between June 2017 and December 2019 were selected, and they were divided into DisCoVisc group(123 cases, 141 eyes)and sodium hyaluronate group(124 cases, 144 eyes)by random number table method. Both groups were treated with phacoemulsification and foldable IOL implantation. DisCoVisc and 1.7% sodium hyaluronate were used as viscoelastic agents in DisCoVisc group and sodium hyaluronate group, respectively. The two groups were compared in terms of intraoperative ultrasound time(UST), cumulative dissipated energy(CDE), time for aspiration of viscoelastic agents after IOL implantation, corneal edema at 1d, 1wk, 1 and 3mo after operation, corneal endothelial cell density(ECD)and ECD loss rates before operation and at 3mo after operation, coefficient variation of corneal endothelial cell size(CV), percentage of corneal hexagonal endothelial cells(6A), intraocular pressure, the proportions of patients with uncorrected visual acuity ≥0.5 and central corneal thickness(CCT)values before and after operation at 1d, 1wk and 1mo.RESULTS:There was no statistically significant difference between the two groups in UST, CDE, aspiration time of viscoelastic agents(P >0.05)or corneal edema both rate on day 1 after operation(P>0.05). Corneal edema disappeared at 1 wk after operation. The ECD loss rate in DisCoVisc group was significantly lower than that in sodium hyaluronate group at 3mo after operation(P<0.05). Intraocular pressure, the proportion of patients with uncorrected visual acuity ≥0.5 and CCT values showed no statistically significant differences between the two groups before and after operation at 1d, 1wk and 1mo(P >0.05).CONCLUSION: DisCoVisc, as the viscoelastic agent in phacoemulsification and foldable IOL implantation for patients with Emery-Little grade Ⅱ-Ⅲ lens nucleus hardness, can better protect the patients' corneal endothelium.
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@#AIM: To investigate the clinical efficacy and safety of the foldable capsular vitreous body(FCVB)implantation in the treatment of severe ocular trauma and also explore the effect of ciliary body function on the FCVB implantation. <p>METHODS: This study retrospectively analyzed 10 cases(10 eyes)with severe ocular trauma which had accepted FCVB implantation performed in Affiliated Xiaolan People's Hospital, Southern Medical University from January 2018 to July 2020. Ciliary body function was judged by score which was made by preoperative examination results. The case which scored 5 or less was studied as ciliary failure: 8 eyes scored more than 5, 2 eyes scored 5 or less. Followed up for 1-31mo, the postoperative best corrected visual acuity(BCVA)and intraocular pressure, anterior chamber, retinal reattachment, FCVB condition and adverse reactions were observed. <p>RESULTS: The operations of 9 eyes with aphakia eyes were successful. Iridodialysis occurred during the operation of 1 eye with lens. Retinal reattachment was found in all 10 eyes, and the position of FCVB in all patients was proper. There was no severe adverse reactions. Comparing the preoperative and postoperative BCVA and intraocular pressure, the difference was not statistically significant(<i>P</i>>0.05). In the group(8 eyes)that ciliary body function scored more than 5, 2 eyes had a supplementary operation individually, 1 eye underwent 2 supplementary operations. In the group(2 eyes)which scored 5 or less, supplementary operations were performed 5 times in 1 eye, only 1 time in the other one case. <p>CONCLUSION: Implantation of FCVB is a safe option to treat severe ocular trauma. But the postoperative visual acuity cannot be improved. The ciliary body function associates with persistent intraocular hypotension and shallow anterior chamber after FCVB implantation.
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@#AIM: To explore the efficacy and safety of foldable capsular vitreous body(FCVB)in the treatment of severe ocular trauma and silicone oil dependent eyes.<p>METHODS:A retrospective study. Totally 20 patients who were underwent FCVB implantation due to severe ocular trauma and silicone oil reliance conducted in our hospital from May 2018 to October 2019 were select as observation group, 10 previous severe eye trauma patients without FCVB implantation as control group. The visual acuity(VA), intraocular pressure(IOP), exophthalmos, eye axis length, retinal reattachment, and complications of preoperative and postoperative in observation group and control group were recorded. A 1a follow-up was carried out to compare the changes in the observation indicators of each group so as to evaluate the effectiveness and safety of the FCVB.<p>RESULTS: Before and 1a after operation, there were no statistically significant differences in VA, eyeball protrusion, and axial length of the observation group, but IOP was significantly increased. The preoperative eyeball protrusion and axial length of the control group were larger than those of the observation group, but they were smaller than those of the observation group during the 1a follow-up. The eyeball protrusion and axial length of the control group were also significantly reduced 1a after the operation compared with the preoperative baseline. Retinas were well attached, silicone oil emulsification, secondary glaucoma, endophthalmitis and any other severe adverse event were not even occurred in the observation group.<p>CONCLUSION:FCVB could effectively and safely prevent eyeball atrophy in the treatment of severe eye trauma and silicone oil dependent eyes.
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@#AIM: To explore the efficacy and safety of foldable capsular vitreous body(FCVB)in the treatment of severe ocular trauma and silicone oil dependent eyes.<p>METHODS:A retrospective study. Totally 20 patients who were underwent FCVB implantation due to severe ocular trauma and silicone oil reliance conducted in our hospital from May 2018 to October 2019 were select as observation group, 10 previous severe eye trauma patients without FCVB implantation as control group. The visual acuity(VA), intraocular pressure(IOP), exophthalmos, eye axis length, retinal reattachment, and complications of preoperative and postoperative in observation group and control group were recorded. A 1a follow-up was carried out to compare the changes in the observation indicators of each group so as to evaluate the effectiveness and safety of the FCVB.<p>RESULTS: Before and 1a after operation, there were no statistically significant differences in VA, eyeball protrusion, and axial length of the observation group, but IOP was significantly increased. The preoperative eyeball protrusion and axial length of the control group were larger than those of the observation group, but they were smaller than those of the observation group during the 1a follow-up. The eyeball protrusion and axial length of the control group were also significantly reduced 1a after the operation compared with the preoperative baseline. Retinas were well attached, silicone oil emulsification, secondary glaucoma, endophthalmitis and any other severe adverse event were not even occurred in the observation group.<p>CONCLUSION:FCVB could effectively and safely prevent eyeball atrophy in the treatment of severe eye trauma and silicone oil dependent eyes.
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@#AIM: To explore the efficacy and safety of foldable capsular vitreous body(FCVB)in the treatment of severe ocular trauma and silicone oil dependent eyes.<p>METHODS:A retrospective study. Totally 20 patients who were underwent FCVB implantation due to severe ocular trauma and silicone oil reliance conducted in our hospital from May 2018 to October 2019 were select as observation group, 10 previous severe eye trauma patients without FCVB implantation as control group. The visual acuity(VA), intraocular pressure(IOP), exophthalmos, eye axis length, retinal reattachment, and complications of preoperative and postoperative in observation group and control group were recorded. A 1a follow-up was carried out to compare the changes in the observation indicators of each group so as to evaluate the effectiveness and safety of the FCVB.<p>RESULTS: Before and 1a after operation, there were no statistically significant differences in VA, eyeball protrusion, and axial length of the observation group, but IOP was significantly increased. The preoperative eyeball protrusion and axial length of the control group were larger than those of the observation group, but they were smaller than those of the observation group during the 1a follow-up. The eyeball protrusion and axial length of the control group were also significantly reduced 1a after the operation compared with the preoperative baseline. Retinas were well attached, silicone oil emulsification, secondary glaucoma, endophthalmitis and any other severe adverse event were not even occurred in the observation group.<p>CONCLUSION:FCVB could effectively and safely prevent eyeball atrophy in the treatment of severe eye trauma and silicone oil dependent eyes.
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@#AIM: To discuss the surgical method of foldable capsular vitreous body(FCVB)implantation and evaluate its therapeutic effect.<p>METHODS: We retrospectively analysis of 73 cases with severe ocular rupture injury after FCVB implanted and silicone oil dependence after vitrectomy in our Hospital from April 2018 to March 2020. The visual acuity, corneal, anterior chamber depth, intraocular pressure, retina, FCVB status, their satisfaction with appearance is observed after treated from 1-20mo.<p>RESULTS: All the 73 patients in this group were successfully operated. The amount of silicone oil injected into the FCVB during the operation was 2.4-4.2mL, with an average of 3.5±0.36mL. There were 22 eyes with light perception, 46 eyes with manual perception and 5 cases with immediate index; 19 eyes during postoperative follow-up. Corneal clarity or basic clarity was observed in 19 eyes, corneal local opacity in 31 eyes, and corneal grayish white opacity in 23 eyes. There were 32 eyes with normal anterior chamber, 23 eyes with shallow anterior chamber, and 18 eyes with completely disappeared anterior chamber. The intraocular pressure(IOP)could not be tested in 22 eyes due to cornea, 17 eyes with IOP less than 8mmHg, and 34 eyes with IOP between 8 and 21mmHg. Slit-lamp microscope examination showed no obvious deviation of the position of FCVB. The postoperative appearances were satisfactory and basically satisfactory in 52 eyes(71%). No balloon rejection, sympathetic ophthalmitis or other obvious surgical complications were observed in all cases.<p>CONCLUSION: For the patients with severe eyeball rupture and silicone-oil-dependent eyes, the FCVB implantation can prevent from eyeball extraction. The operation is safe and effective, and the eyeball shape and intraocular pressure can be well maintained.
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Purpose: This study evaluated bimanual intracapsular irrigation-aspiration for ectopia lentis with use of a small incision for 4-point scleral fixation of a foldable posterior-chamber intraocular lens (IOL) and anterior vitrectomy in patients with Marfan syndrome. Methods: We performed a retrospective study of 18 eyes from 10 patients with Marfan syndrome who underwent surgical intervention for ectopia lentis at our clinic between July 2012 and September 2018. In this study, intraoperative and postoperative complications, uncorrected visual acuity, best-corrected visual acuity, spherical equivalent, intraocular pressure, and endothelial cell density were evaluated. Results: No intraoperative complications were reported. In all cases, early postoperative evaluation revealed a clear cornea, round pupil, and well-centered IOL. Mean logMAR uncorrected visual acuity improved from 1.09 preoperatively to 0.56 postoperatively (P < 0.05). Mean logMAR best-corrected visual acuity improved from 0.45 preoperatively to 0.17 postoperatively (P < 0.05). Aside from transient ocular hypertension, no postoperative complications were reported. Conclusion: The combined surgical technique presented above yields excellent visual outcomes with an extremely low incidence of complications. This approach is simple, safe, and effective in the treatment of ectopia lentis in patients with Marfan syndrome.
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AIM: To evaluate the clinical effects of secondary suspensory foldable intraocular lens ( IOL ) implanted in aphakia eyes after vitrectomy.? METHODS: The clinical data were retrospectively analyzed in 25 eyes of 25 patients treated with secondary suspensory intraocular lens implantation after vitrectomy. The surgery was performed through a incision 2. 4mm away from corneal edge, followed by solarometer positioning 8:00 and 2:00, and foldable intraocular lens was loaded and implanted by an injector, after that suspension line knot of lens was made, which length was equal to the distance between the loops of intraocular lens. The intraocular lens was fixed to sclera by a "W"shaped suspension suture. The patients were followed up for 3 ～ 26mo postoperatively, and visual acuity, intraocular pressure, cornea, anterior chamber reaction, intraocular lens position, fundus were observed.? RESULTS: All patients received preoperatively best corrected visual acuity at 1wk after surgery, and the refractive condition was within ± 1. 5 DC. The intraocular pressure was all normal. The number of corneal endothelial cells ( n/mm2 ) was 2394. 33 ± 201. 31 before surgery, and was 2283. 30±217. 82 at 3mo(P>0. 05). The percentage of corneal hexagonal endothelials was 52. 67％±6. 28％ preoperatively, and came to 51. 81％± 6. 41％ at 3mo ( P>0. 05 ). The central corneal thickness (mm) was 541.10±40.31 at the beginning, and was 543.10 ±41. 77 at 3mo (P>0. 05). Small amount of bleeding under choroid occurred in one eye, and intraocular lens dropped into vitreous body in another. Dislocation or shifting of intraocular lens, corneal decompensation or retinal detachment was not observed.? CONCLUSION: The clinical effect of secondary suspensory foldable intraocular lens implanted in aphakia eyes after vitrectomy was satisfactory. Minimal invasive surgery through small incision and accurate implantation are applied to increase safety while reducing complications, thus improve the effects of surgery.
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Para la corrección quirúrgica de la afaquia existen en la actualidad varias técnicas quirúrgicas que permiten fijar los lentes intraoculares plegables o rígidos en cámara posterior suturados al iris o al sulcus ciliar. En estas circunstancias el cirujano determinará cuándo, dónde y el tipo de lente mejor a implantar. Se presenta un paciente con una afaquia traumática del ojo izquierdo, con agudeza visual sin corrección de movimiento de mano a 1 m. Se le realizó implante secundario de lente intraocular plegable de cámara posterior suturada al iris. En el examen biomicroscópico en lámpara de hendidura del ojo izquierdo se observó midriasis media paralítica, refracción dinámica de +11,00 (0,6) y tensión ocular normal. Se le realizó examen por bimicroscopía indirecta sin alteración. Al mes de operado la agudeza visual mejor corregida alcanzó la unidad de visión. Las complicaciones presentadas fueron ovalización de la pupila y depósitos de pigmentos de iris en el lente intraocular(AU)
There are several surgical techniques for the surgical correction of aphakia, which allow fixing foldable or rigid intraocular lenses in the posterior chamber by suturing them to iris or to ciliary sulcus. Under these circumstances, the surgeon will determine the time, the place and the type of lenses that is better to be implanted. This is a patient with traumatic aphakia in his left eye, with visual acuity without correction equals to hand movement at 1 m distance. He was performed a secondary implantation of a iris-sutured posterior chamber foldable intraocular lens. In the biomicroscopic exam of the left eye using the slit lamp, there was observed mean paralytic midriasis, dynamic refraction of +11,00 (0.6) and normal ocular pressure. He also underwent an indirect biomicroscopy with no alteration. After a month of his surgery, the best corrected visual acuity reached the vision unit. The complications found were ovalization of pupil and iris pigment depots in the intraocular lens(AU)
Subject(s)
Humans , Male , Middle Aged , Aphakia/complications , Phakic Intraocular Lenses/adverse effects , Slit Lamp Microscopy/statistics & numerical dataABSTRACT
AIM: To explore the effect of radial axial incision on corneal astigmatism after phacoemulsification.METHODS: Totally 60 cases (62 eyes) of cataract patients were selected from our hospital, divided into Group A and Group B randomly.Two groups were both required to have a corneal incision, while Group A took it in the maximum corneal refractive radial axial and the Group B took it in the traditional temporal side (right eye) or nasal side (left eye).At the same time two groups received phacoemulsification and foldable intralocular lens (IOL) implantation.We measured their date before surgery, after surgery in 1d, 1wk and 1mo respectively with CT200 corneal topography measurement.The date was compared in two groups of corneal astigmatism, surgically induced astigmatism and visual acuity.According to the corneal astigmatism and axial, surgically induced astigmatism was calculated.RESULTS: Group A and Group B were compared in age, gender, lens nucleus hardness, visual acuity, corneal astigmatism before the surgery, which has no statistically significant differences (P>0.05).Postoperative visual acuity of both groups was higher than preoperative (P0.05).Corneal astigmatism was not statistically significant in two groups at 1d after surgery (P>0.05).The corneal astigmatism was significantly less in Group A than that in Group B in 1wk and 1mo after surgery, and the difference was statistically significant (P<0.05).After the surgery for 1wk and 1mo, the surgically induced astigmatism of Group B was significantly higher than that of the Group A, with the difference was statistically significant (P<0.05).CONCLUSION: Making clear corneal incision along the maximum curvature of the cornea in cataract surgery can make the corneal astigmatism and the degree of astigmatism less after surgery.