Caracterización del implante secundario de una lente intraocular plegable suturada al iris en la afaquia

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.

Corrección de la afaquia postraumática en niños con lentes plegables suturadas al iris

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.

“To Fulfill two needs with one deed”: Iris fixation of intraocular lens using four-throw pupilloplasty

Background: Pupil distortion and aphakia are common complications that follow blunt injury of the eye globe, surgical complications, and iris coloboma. Patients with these two complications complain of severe glare and photophobia even after successful intraocular lens (IOL) implantation like scleral fixation of intraocular lens (SFIOL) due to irregular pupil. To overcome this, we prefer to do pupilloplasty along with IOL implantation. Purpose: In this video, we demonstrate iris fixation of IOL using four?throw pupilloplasty; thus with one surgical technique, both pupilloplasty and iris fixation are done. Synopsis: The technique of an IOL implantation without capsular support can be challenging. There are different techniques, such as iris claw, iris fixation, and scleral fixation. Permanent mydriasis or distorted pupil can be a disabling condition, even after successful vision gain, due to photophobia. So pupilloplasty is nowadays preferred along with IOL implantation. Usually after IOL implantation, iris cerclage or pupilloplasty is done. We combined both steps with one technique: iris fixation with four?throw pupilloplasty. This technique can be used for iris coloboma with weak zonules and surgical iridectomy with aphakia cases where the pupil is irregular. Highlights: The video highlights the steps of four?throw pupilloplasty technique which is also used for fixating the IOL to the iris (iris fixation). This can give an excellent outcome in aphakia with distorted pupil using a single technique approach.

Globe rupture with aphakia, aniridia, secondary glaucoma and late corneal decompensation: A multi-staged approach to management

Severe blunt ocular trauma may result in immediate and delayed complications requiring appropriate management algorithms. We hereby report a case of globe rupture, aphakia, traumatic aniridia, and secondary glaucoma in a 33-year-old male following road traffic accident. He was treated initially by primary repair followed by novel combined approach of aniridia IOL with Ahmed glaucoma valve implantation. Delayed corneal decompensation required deferred penetrating keratoplasty. After a follow-up of 3.5 years after last surgery, patient maintains good functional vision with stable IOL, clear corneal graft and controlled intraocular pressure. A meticulously planned and staged management approach appears better suited in complex ocular trauma in such scenarios giving a good structural and functional outcome

Scleral fixation of iris-Intraocular lens complex (Reper®) with Canabrava double-flanged technique: a case report / Fixação escleral de um complexo íris-lente intraocular (Reper®) com técnica de flange duplo de Canabrava: relato de caso

ABSTRACT A 38-year-old patient who developed aphakia and aniridia secondary to trauma suffered from vision loss. To improve her vision, an iris-intraocular lens complex (Reper®) was fixed to the sclera with Canabrava's double-flanged technique. There was a satisfactory increase in the patient's visual acuity and no complications were observed during the 6-months follow-up. Canabrava technique simplifies and improves the fixation of the iris-intraocular lens complex to the sclera. It is a safe option that does not require scleral flaps or knots.

RESUMO Uma paciente de 38 anos desenvolveu afacia e ani­ridia secundárias a um trauma, levando à perda da visão. Para melhorar sua visão, um complexo de íris e lente intraocular (Reper®) foi fixado à esclera com a técnica de flange duplo de Canabrava. Houve um aumento satisfatório na acuidade visual do paciente e nenhuma complicação foi observada durante o acompanhamento de 6 meses. A técnica de Canabrava simplifica e melhora a fixação do complexo de íris e lente intraocular na esclera. É uma opção segura que não requer retalhos ou pontos esclerais.

Preferred practice patterns in aphakia management in adults in India: A survey

Purpose: To assess different approaches in the management of aphakia in adults in Indian ophthalmologists via an online survey. Methods: A survey-monkey based online questionnaire was fielded to Indian ophthalmologists in accordance with the CHERRIES guidelines. We recorded participants’ demographics, practice settings, and preferred surgical options including the type of intraocular lens (IOL) preferred when encountering a case of aphakia in adults with and without adequate capsular support. Differences between anterior segment (AS) surgeons and vitreoretinal (VR) surgeons as well as differences between surgeons with more or less than 10 years of surgical experience were evaluated using analytic statistics. Results: Of the 481 surgeons who responded to the survey, 369 (77%) were AS surgeons and the remaining 112 (23%) were VR surgeons and represented all regions of India. When encountering posterior capsular rent during cataract surgery, a three-piece IOL in the ciliary sulcus was the most preferred (n = 275, 57%) when there was adequate capsular support, while a retrofixated iris-claw IOL (n = 91, 19%) was the commonest choice in eyes without adequate capsular support. With associated nucleus drop, 85% of surgeons preferred to refer the patient to a VR surgeon and left the eye aphakic. Multivariable logistic regression showed that VR surgeons were more than six times likely to prefer a scleral fixated intraocular lens (SFIOLs) [odds ratio (OR) = 6.5, 95% confidence interval (CI) = 3.4–12.5, P < 0.001] and surgeons with >10 years of experience were also twice more likely to prefer an SFIOL (OR = 2.4, 95% CI = 1.2–4.9, P = 0.02). Conclusion: The choice of IOL in absence of capsular support in adult eyes differs between AS and VR surgeons and is also influenced by the surgeon’s experience.

Comparative study of visual outcome of newly designed scleral tuck lens and suture-fixated lens for rehabilitation of aphakia in various aetiologies

Purpose: Visual rehabilitation in aphakia can be performed using several modalities. However, these modalities could be either technically difficult or expensive. Herein, we developed a scleral tuck lens to provide a simple and cost?effective solution for aphakia and compared its outcome with standard methods. Methods: A specially designed posterior chamber self?sustaining lens was implanted in patients with aphakia without capsular support because of different primary etiologies. The visual outcomes, as well as intraoperative and postoperative complications, were examined. The data were retrieved from electronic medical records, and visual outcome and complication rates were compared. The outcomes were also compared according to the etiology and age groups (pediatric and adults). Results: We found significant improvement in preoperative and postoperative visual outcome. We did not find any significant difference in visual outcome amongst suture?supported scleral fixated lens with scleral tuck lens. Conclusion: Satisfactory visual outcomes were noted with minimal complications; and comparable with gold standard suture fixated lens, however long?term follow?up is required

Secondary developmental glaucoma in eyes with congenital aphakia

Purpose: To describe the clinical spectrum and management of glaucoma in congenital aphakia. Methods: The demographics and clinical spectrum of eyes with congenital aphakia with and without glaucoma were compared, and management outcomes of congenital aphakia cases with glaucoma were studied retrospectively between April 2000 and June 2020. Results: There were a total of 168 eyes (84 subjects) with a diagnosis of congenital aphakia, of which 29 eyes of 18 subjects were diagnosed with glaucoma. Corneal opacity was the presenting complaint in 26/29 eyes with glaucoma and 139/139 eyes without glaucoma. The (interquartile range (IQR)) horizontal corneal diameter was 10.5mm (IQR, 9.0?12.5) and 8mm (IQR, 5?10) in eyes with and without glaucoma (P = 0.01), respectively. The median (IQR) axial length was 17.5mm (IQR, 13.5?19.5) and 15mm (IQR, 14?16) mm in eyes with and without glaucoma (P = 0.03), respectively. Nineteen eyes with glaucoma had adequate intraocular pressure (IOP) control with one medication. Three eyes underwent transscleral diode cyclophotocoagulation and maintained IOP without medications. Three eyes underwent trabeculectomy and trabeculotomy, trabeculectomy followed by penetrating keratoplasty, and trabeculectomy, respectively, of which two eyes became phthisical. At the last follow?up, the median (IQR) IOP was 14 mm Hg (IQR, 14?17) Hg. The median (IQR) follow?up duration was 4.53 months (IQR, 2.03? 48.06). Conclusion: One?fifth of the eyes with congenital aphakia had secondary developmental glaucoma. The corneal diameter and axial lengths were higher in the eyes with glaucoma compared to eyes without glaucoma. Medical management is the preferred short?term mode of IOP control. Transscleral cyclophotocoagulation may be preferred over surgical intervention.

Cirugía facorrefractiva en la alta miopía y sus complicaciones / Phaco-refractive surgery in high myopia and its complications

La miopía es un grave problema de salud pública por su alta y creciente prevalencia en distintas áreas geográficas. La cirugía facorrefractiva consiste en la extracción del contenido transparente o esclerosado del cristalino y el implante de una lente intraocular, con el objetivo posoperatorio de alcanzar o acercarse a la emetropía. Ha demostrado un resultado predecible y estable en el tiempo, pero no está exenta de complicaciones. Se presenta un paciente de 44 años de edad con antecedentes de oftalmológicos de miopía elevada, glaucoma secundario y cirugía facorrefractiva en ambos ojos, refracción dinámica de -3,50-100 x 200 con agudeza visual mejor corregida de 0,8 por cartilla de Snellen en el ojo derecho y -5,25 -1,25 x 1600 con agudeza visual mejor corregida de 0,6 en el ojo izquierdo. En el examen biomicroscópico se observó afaquia quirúrgica, opacidad de la cápsula posterior con capsulotomía láser central amplia y presencia de vítreo en la cámara anterior en ambos ojos con cifras de tensión ocular elevadas. Se realizó implante secundario de lente intraocular en ambos ojos. La refracción dinámica a los 3 meses fue para el ojo derecho de: -0,50 -0,50 x 400 con agudeza visual mejor corregida de 0,9 por cartilla de Snellen y para el ojo izquierdo de: -1,00 -0,75 x 1600 con agudeza visual mejor corregida de 0,6 por cartilla de Snellen. A los dos años presentó desprendimiento de retina subclínico en el ojo derecho, que fue tratado con terapia láser, y daño glaucomatoso en el ojo izquierdo. Se le realizó trabeculectomía, trabeculoplastia selectiva láser y posteriormente implante de drenaje valvulado en el ojo izquierdo(AU)

Myopia is a serious public health problem, due to its high and increasing prevalence in various geographic regions. Phaco-refractive surgery consists in extraction of the clear or sclerosed content of the crystalline lens and implantation of an intraocular lens with the postoperative objective of achieving or approaching emmetropia. The procedure has shown to obtain predictable results stable in time, but it is not exempt from complications. A case is presented of a male 44-year-old patient with an ophthalmologic history of high myopia, secondary glaucoma and phaco-refractive surgery in both eyes, dynamic refraction of -3.50-100 x 200 with best corrected visual acuity of 0.8 on the Snellen chart in the right eye and -5.25 -1.25 x 1600 with best corrected visual acuity of 0.6 in the left eye. Biomicroscopic examination found surgical aphakia, posterior capsule opacity with large central laser capsulotomy, presence of vitreous in the anterior chamber of both eyes and high ocular pressure values. Secondary intraocular lens implantation was performed in both eyes. Dynamic refraction at three months was -0.50 -0.50 x 400 for the right eye with best corrected visual acuity of 0.9 on the Snellen chart, and -1.00 -0.75 x 1600 for the left eye with best corrected visual acuity of 0.6 on the Snellen chart. At two years the patient experienced subclinical retinal detachment in the right eye, which was treated with laser therapy, and glaucomatous damage in the left eye, for which the treatment indicated was trabeculectomy, selective laser trabeculoplasty, and then valved drainage implantation in the left eye(AU)

Implante secundario de lente en cámara anterior con apoyo angular versus lente suturado a iris / Secondary implantation of angle-supported lens in the anterior chamber versus iris-suture-fixated lens

Objetivo: Comparar los resultados del implante secundario de lentes intraoculares de cámara anterior rígido con apoyo angular y de lentes intraoculares plegables de cámara posterior suturados a iris, en cuanto a efectividad, seguridad y calidad de vida relacionada con la función visual (cuestionario NEI VFQ-23). Métodos: Se realizó un estudio cuasi experimental de 50 ojos de pacientes afáquicos sin soporte capsular, después de la cirugía de catarata, divididos en dos grupos según el tratamiento. Resultados: Se observó que en el grupo de pacientes tratados con lente intraocular suturado a iris el porcentaje de pacientes con una visión de 20/40 o más fue significativamente superior (96,0 vs. 60,0 , p = 0,000), mientras que los resultados del cuestionario de calidad de vida fueron menores en cuanto a la frecuencia de pacientes con visión de 20/200 o menos (0,0 vs. 16,0 por ciento, p = 0,110); la inducción de astigmatismo, la disminución de la densidad de células endoteliales (361,6 ± 220,5 vs. 556,1 ± 340, p = 0,021) y el porcentaje de pacientes con complicaciones (36,0 vs. 52,0 por ciento, p = 0,254). Conclusiones: Se logran mejores resultados con el implante de lente intraocular plegable suturado a iris(AU)

Objective: Compare the results of secondary implantation of rigid angle-supported intraocular lenses in the anterior chamber versus foldable iris-suture-fixated intraocular lenses in the posterior chamber, in terms of effectiveness, safety and vision-related quality of life (questionnaire NEI VFQ-23). Methods: A quasi-experimental study was conducted of 50 eyes of aphakic patients without capsular support after cataract surgery, who were divided into two groups according to the treatment indicated. Results: It was found that in the group treated with iris-suture-fixated intraocular lens implantation the percentage of patients with 20/40 vision or more was significantly higher (96.0 vs. 60.0 percent, p = 0.000), whereas the results of the quality of life questionnaire were lower in terms of frequency of patients with 20/200 vision or less (0.0 vs. 16.0 percent, p = 0.110), induction of astigmatism, endothelial cell density reduction (361.6 ± 220.5 vs. 556.1 ± 340, p = 0.021) and percentage of patients with complications (36.0 vs 52.0 percent, p = 0.254). Conclusions: Better results were obtained with the implantation of foldable iris-suture-fixated intraocular lenses(AU)

Fijación de lentes intraoculares a esclera sin suturas / Sutureless scleral intraocular lens fixation

La corrección quirúrgica de la afaquia se realiza mediante varias técnicas que permiten fijar los lentes intraoculares en la cámara posterior, suturados al sulcus ciliar o por fijación transescleral de las hápticas sin suturas. El cirujano determina cuándo, dónde y cómo, además del tipo de lente a implantar. Se presenta un paciente con una afaquia traumática del ojo izquierdo, con agudeza visual sin corrección de cuenta dedos a un metro y refracción dinámica de +8,00 dioptrías con agudeza visual mejor corregida de 0,8 por cartilla de Snellen. Tensión ocular de 16 mmHg. En el examen biomicroscópico con lámpara de hendidura del ojo izquierdo se observó midriasis traumática. Se le realizó examen con biomicroscopia indirecta y resultó sin alteraciones. Se implantó el lente intraocular de tres piezas (Tecnis ZA9003) de la cámara posterior y se fijaron las hápticas a la esclera sin utilizar suturas. Al mes de la cirugía la agudeza visual mejor corregida fue la unidad de visión(AU)

Surgical aphakia correction is based on several techniques allowing to fix intraocular lenses in the posterior chamber, sutured to the ciliary sulcus or by sutureless transcleral fixation of the haptics. The surgeon will decide when, where and how, as well as the lens type to implant. A case is presented of a male patient with traumatic aphakia of his left eye, finger counting uncorrected visual acuity at one meter and dynamic refraction of +8.00 diopters with best corrected visual acuity of 0.8 by the Snellen chart. Ocular tension was 16 mmHg. Biomicroscopic slit lamp examination of the left eye found traumatic mydriasis. Indirect biomicroscopy did not find any alteration. A three-piece intraocular lens (Tecnis ZA9003) was implanted in the posterior chamber, fixing the haptics to the sclera without the use of sutures. One month after surgery, best corrected visual acuity was the vision unit(AU)

Resultados refractivos del implante secundario de lente en la cámara anterior con apoyo angular y de lente suturado a iris / Refractive results of anterior chamber angle-supported and iris-suture-fixated secondary lens implantation

Objetivo: Comparar los resultados refractivos del implante secundario de lentes intraoculares rígidos de la cámara anterior con apoyo angular y de lentes intraoculares plegables de la cámara posterior suturados a iris. Métodos: Se realizó un estudio casi experimental con control no equivalente (cohorte histórica). Se estudiaron 50 pacientes (50 ojos) con afaquia e inadecuado soporte capsular después de la cirugía de catarata, a quienes se les realizó implante secundario de lente intraocular con dos técnicas diferentes: lente intraocular en la cámara anterior con apoyo angular (25 ojos) y lente intraocular plegable de la cámara posterior suturado a iris (25 ojos). Resultados: Se observó que en el grupo de pacientes tratados con lente intraocular suturado a iris el porcentaje de pacientes con una visión de 20/40 o más fue significativamente superior (96,0 por ciento vs. 60,0 por ciento, p= 0,000) en los resultados refractivos obtenidos según el grupo de tratamiento. En el grupo A predominaron los pacientes que quedaron emétropes, seguidos de los pacientes miopes. En el grupo B predominaron los pacientes miopes y a diferencia del grupo anterior ningún paciente quedó hipermétrope. Conclusiones: La lente intraocular plegable de la cámara posterior suturada a iris mostró ser más eficaz, indujo menos astigmatismo y fue mejor en la predictibilidad de la esfera en un rango estricto de ± 1,00 dioptrías(AU)

Objective: Compare the refractive results of secondary implantation of rigid angle-supported intraocular lenses in the anterior chamber and foldable iris-suture-fixated intraocular lenses in the posterior chamber. Methods: A quasi-experimental non-equivalent control (historical cohort) study was conducted of 50 patients (50 eyes) with aphakia and inadequate capsular support after cataract surgery, who underwent secondary intraocular lens implantation with two different techniques: angle-supported intraocular lens in the anterior chamber (25 eyes) and foldable iris-suture-fixated intraocular lens in the posterior chamber (25 eyes). Results: In the group treated with iris-suture-fixated intraocular lens implantation the percentage of patients with 20/40 vision or more was significantly higher (96.0 percent vs. 60.0 percent, p= 0.000) in the refractive results obtained for each treatment group. In Group A a predominance was found of emmetropic, followed by myopic patients. In Group B myopic patients prevailed and unlike the other group no patient was hyperopic. Conclusions: Foldable iris-suture-fixated posterior chamber intraocular lenses proved more effective, induced less astigmatism and displayed better sphere predictability in a strict range of ± 1.00 diopters(AU)

Result of implantation of scleral-fixated posterior chamber intraocular lenses / Шинэ санаа Шинэ нээлт

Purpose@#The aim of this study was to determine the surgical and visual outcomes of scleral fixated intraocular lens implantation in eyes with as subluxated and dislocated crystalline lens or traumatic aphakic eyes.@*Methods@#A retrospective and short-term prospective cohort study was carried out in 45 eyes of 43 individuals who underwent SFIOL implantation surgery in First Central Hospital of Mongolia between January 2017 and January 2020 and had a minimum follow-up of 3 months. Pre-operative and post-operative best corrected visual acuity, postoperative outcomes and complications were summarized. Patients after the implantation of a scleral fixated PCIOL were evaluated for the disease etiology, pre- and post-operative best corrected visual acuity, and occurrence of postoperative complications.@*Results@#The analysis included 45 eyes from 43 patients. Thirty-two (74.4%) patients were men and eleven (24.6%) were women . The mean age at implantation was 57.2 ± 20.0. Indications for the IOL implantation included ocular trauma (48.9%), pseudoexfoliation syndrome (22.2%) and Marfan syndrome (15.6%). Disease etiology and age group were compared and results were Marfan syndrome is mostly diagnosed in 20-29 years of age, ocular trauma is usually diagnosed in 30-69 years of age and pseudoexfoliation syndrome is occurred in 70 and above of age. Post-operative visual acuity was improved in all cases from which 35 of patients (77.77%) visual outcome was 6/12 and above. </br> The mean preoperative best corrected visual acuity (BCVA) was 0.083 ± 0.088, which improved to 0.569 ± 0.221 (p<0.001) third month postoperatively and these were statistically significant.</br> The most frequent complication was induced astigmatism, which occurred in 6 eyes which successfully corrected with glasses. Suture erosion occurred in three eyes which successfully relocate it. The most serious complications such as vitreous hemorrhage, retinal detachment, suprachoroidal hemorrhage, endophthalmitis and suture degradation or breakage was not seen.@*Conclusion@#Ab externo SFIOL implantation is a reasonable technique for the management of eyes with aphakia or absence of capsular support, with relatively high visual outcomes and few serious complications.</br> The most frequent cause of aphakia and absence of capsular support was ocular trauma thus, pseudoexfoliation and Marfan syndrome were the most common in elderly and in young age, respectively.

Comparative study between iris-claw and scleral-fixated intraocular lens in patients with aphakic eye / 国际眼科杂志(Guoji Yanke Zazhi)

@#AIM: To analyze the efficacy of iris-claw intraocular lens(ICIOL)and scleral-fixator intraocular lens(SFIOL)in terms of visual outcomes, surgical time, and postoperative complications in the aphakic patients.<p>METHODS: This study was a prospective study with 60 aphakic eyes of 60 patients who attended our outpatient department from October 2018 to February 2020. These patients were divided into two groups and each with 30 patients. Patients in Group I were underwent ICIOL whereas patients in Group II underwent SFIOL implantation. Patients with pre-existing ocular pathologies, previous history of retinal surgery of the eye were excluded. The preoperative and postoperative evaluation was done for the follow up period of 9mo.<p>RESULTS: Twenty-six(87%)patients in the ICIOL group and 24(80%)patients in SFIOL group had best corrected visual acuity(BCVA,LogMAR)with 0.50-0.00 after 9mo follow up. The mean of BCVA(LogMAR)was comparable in both the groups. The surgical time in ICIOL was significantly less than the SFIOL group(<i>P</i><0.01). Complications related to sutures were significantly more in the SFIOL group. Complications found in the ICIOL group were very mild and harmless. <p>CONCLUSION: The visual outcome was comparable in both groups. ICIOL with fewer complications and requiring less surgical time was found to be a better alternative to SFIOL in the correction of aphakia.

Retropupillary iris-claw intraocular lens implantation in aphakic patients

Purpose: To evaluate the outcomes of implantation of an iris-claw intraocular lens (IC-IOL) in retropupillary position in aphakic patients. Methods: We conducted a prospective interventional study, including 36 aphakic eyes with inadequate capsular support. The postoperative examination included best-corrected visual acuity (BCVA), intraocular pressure (IOP) measurement, central corneal thickness (CCT), and anterior segment examination with emphasis on the anterior chamber reaction and shape of pupil. Follow-up was done for 3 months. Results: Thirty-six eyes of 34 patients, including 22 right eyes and 14 left eyes were included. Indications for surgery were complicated cataract surgery in 38.9% (n = 14), aphakia in 27.8% (n = 10), pseudophakic bullous keratopathy in 16.7% (n = 6), dislocated posterior chamber IOL (PCIOL) in 11.1% (n = 4), IC drop in 2.8% (n = 1), and subluxated PCIOL in 2.8% (n = 1). Postoperatively, the visual acuity improved by at least two lines in 32 (88.9%) and worsened in four (11.1%) eyes at the end of three months. Mean postoperative IOP at the end of the third month was 12.42 mmHg (standard deviation [SD] 2.57; range 11.55�.29 mmHg). The mean postoperative CCT at the end of the third month was 542.42 microns (SD 13.77; range 537.76�7.07 microns). Sixteen eyes (44.4%) had horizontally oval pupil, eleven eyes (30.6%) had round pupil, and nine eyes (25%) had irregular pupil. Twenty-three eyes (63.9%) presented with significant anterior chamber reaction and seven eyes (19.4%) had corneal stromal edema on postoperative day 1. Conclusion: Our study demonstrated that retropupillary IC-IOL implantation in eyes without adequate capsular support is an effective and safe procedure with a good visual outcome and fewer complications.

Surgical outcomes, complications and learning curve of glued intraocular lens of a vitreo retinal fellow in training

Purpose: To evaluate surgical outcomes, complications and learning curve of glued intraocular lens surgery by a vitreoretinal (VR) fellow in training. Methods: Analysis of 50 eyes requiring glued intraocular lens (GIOL) surgery for various indications was done. Both the consultant VR surgeon (Group 1) and VR fellow in training (Group 2) operated 25 eyes each. The primary outcome measures were visual acuity at 3 months, and time taken for completion of surgery. Secondary outcome measures were refractive correction, intraocular pressure and intraoperative or postoperative complications. Results: The uncorrected visual acuity (UCVA) improved from log MAR 1.54�56 (Snellen 20/693) to 0.45�26 (Snellen 20/56) and from 1.64�53 (Snellen 20/873) to 0.56�45 (Snellen 20/72) in group 1 and 2, respectively. The best corrected visual acuity (BCVA) improved from log MAR 0.74�61 (Snellen 20/109) to 0.33�26 (Snellen 20/42) and from 1�68 (Snellen 20/200) to 0.40�50 (Snellen 20/50) in group 1 and 2, respectively (P > 0.05). The surgical time was significantly less in group 1 when compared to that of group 2 (64.26 vs 107.16 minutes) P value <0.05). The mean time taken for the initial 10 cases and later 15 cases in group 2 were 131.9 and 91.2 minutes, which was statistically significant. The complication rates in both groups were comparable. Transient hypotony (IOP < 11) was seen in 56% (14/25) of eyes in group 2 and 44% (11/25) in group 1 (P = 0.39). Conclusion: The study results are encouraging for a VR fellow with good short-term visual outcomes and comparable surgical complications. The procedure gives promising results and the learning curve is overcome by a desire to learn and with increasing number of procedures done under supervision.

Outcomes of the sutureless-intrascleral fixation of posterior chamber intraocular lens implantation using modified Yamane's technique / 国际眼科杂志(Guoji Yanke Zazhi)

@#AIM:To observe the post-operative outcomes, safety and complications of the sutureless-intrascleral fixation of posterior chamber intraocular lens(SF-PCIOL)by using the modified Yamane's technique.<p>METHODS:This study involved 5 patients who underwent SF-PCIOL with the modified Yamane's technique, from December 2017 to September 2018. The longest follow-up time was 12mo, and the primary outcomes included uncorrected visual acuity(UCVA, LogAMR)and bestcorrected visual acuity(BCVA, LogMAR), intraocular pressure and the location and stability of IOLs.<p>RESULTS: The BCVA of 3 patients were ranged from 0.0 to 0.1 by the time of following up 12mo postoperatively. The difference between the spherical equivalent refraction and the predicted spherical equivalent refraction was in a range of 0.11-0.62 diopters. In the other two cases, at 3mo after the surgery, the UCVA was 0.2 for one case, and the BCVA was the same as preoperative corrected visual acuity for another case, where the patient manifested corneal leucoma and macular edema prior to surgery. During the follow-up period, the flanges and the IOL haptics of all the recruited patients were maintained in an ideal position, the optics were located in center of the pupils, and no visible IOL decentration or tilt was observed. Neither hypotony nor other complications were discovered in all the cases.<p>CONCLUSION: For SF-PCIOL by using modified Yamane's technique, smaller incisions and shorter operation time are feasible, and the need for scleral flaps, sutures and fibrin glue is eliminated. The IOLs are well centered and fixed securely. A learning curve is necessary to master this surgery technique. As revealed by our initial observation, the surgery is capable of producing satisfactory and consistent postoperative outcomes for patients with fewer postoperative complications as long as the crucial points are fully understood.

Comparison of flanged intrascleral intraocular lens fixation versus iris claw intraocular lens fixation: A retrospective study

Purpose: To compare the visual outcome and complications of retropupillary fixated iris claw intraocular lens (IOL) and sutureless intrascleral IOL fixation using the flanged fixation technique at 1 year. Methods: In this retrospective study, eyes that underwent either iris claw or flanged SFIOL from January 2016 to July 2017 with a minimum of 1-year follow-up were enrolled. Improvement in visual acuity, intraocular pressure measurements, endothelial cell count, central macular thickness, and complications were compared between and within groups at 6 weeks, 3 months, and 1 year postoperatively. Results: Data from 150 eyes were analyzed (n = 90 in the iris claw group and n = 60 in the flanged SFIOL group). Posterior capsular rent was the most common indication for IOL implantation (n = 51, 34%). The iris claw and SFIOL groups were comparable in terms of demographics and baseline characteristics. There was significant improvement in uncorrected distance visual acuity (UCDVA) at 6 weeks in both groups (P = 0.77), and at 1 year, the UCDVA was comparable between groups (0.36 ± 0.32 in the iris claw group and 0.30 ± 0.28 in the SFIOL, P= 0.75). Transient elevation of intraocular pressure was seen slightly more in eyes with SFIOL (17%), while ovalization of the pupil was the main sequelae seen in the iris claw group (20%). Conclusion: Both iris claw IOL fixation and SFIOL using flange are viable options for surgical correction of aphakia. Visual outcomes are excellent at 6 weeks and are maintained till 1-year follow-up, and complication rates are acceptably low, although ovalization of pupil is common with iris claw IOLs.