Risk of Pseudophakic Cystoid Macular Edema in Fellow-Eye Cataract Surgeries: A Multicenter Database Study.

PURPOSE: To quantify the risk of pseudophakic cystoid macular edema (pCME) in fellow-eye cataract surgery and to determine risk factors, including prior first-eye pCME. DESIGN: Retrospective, clinical database study. PARTICIPANTS: Patients undergoing bilateral nonsimultaneous cataract surgeries in 8 UK National Health Service clinical centers between July 2003 and March 2015. METHODS: We excluded patients with a history of diabetic macular edema (DME) or CME and perioperative topical nonsteroidal anti-inflammatory drug use in either eye. We calculated the overall risk of pCME and used Poisson model with robust estimation of standard error to identify potential risk factors for pCME in the fellow eye. MAIN OUTCOME MEASURE: The risk of postoperative clinical pCME in the fellow eye. RESULTS: A total of 54 209 patients were included. The mean age was 74.6 ± 10.4 years, and 38.8% were male. The fellow eye developed pCME in 544 patients (1%). The risk of fellow-eye pCME among patients without first-eye pCME was 0.9%. However, the risk of fellow-eye pCME among those with first-eye pCME was 10.7%. In the fully adjusted model, we found that the risk factors for the development of fellow-eye pCME were first-eye pCME (RR, 8.55, 95% confidence interval [CI], 6.19-11.8), epiretinal membrane (ERM) (RR, 4.1, CI, 2.63-6.19), history of retinal vein occlusion (RR, 2.94, CI, 1.75-4.93), diabetes without history of DME (RR, 2.08, CI, 1.73-2.5), advanced cataract (RR, 1.75, CI, 1.16-2.65), prostaglandin analogue use preoperatively (RR, 1.49, CI, 1.13-1.97), and male sex (RR, 1.19, CI, 1.0-1.41). CONCLUSIONS: History of pCME in the first-operated eye is the strongest independent risk factor for the development of pCME in the fellow eye. Our findings may guide clinicians in counseling patients on the risk of pCME before performing cataract surgery in the fellow eye and help in identifying high-risk patients who may benefit from prophylactic therapy. FINANCIAL DISCLOSURE(S): Proprietary or commercial disclosure may be found after the references.

The Effect of Tube Location on Corneal Endothelial Cells in Patients with Ahmed Glaucoma Valve.

PURPOSE: To compare the effects of the Ahmed glaucoma valve (AGV; New World Medical, Rancho Cucamonga, CA) with sulcus versus anterior chamber (AC) tube placement on the corneal endothelial density and morphology over time. DESIGN: Nonrandomized, interventional study. PARTICIPANTS: This study included 106 eyes from 101 pseudophakic patients who had the AGV tube placed in the AC (acAGV) and 105 eyes from 94 pseudophakic patients who had the AGV tube placed in the ciliary sulcus (sAGV). METHODS: All patients underwent preoperative specular microscopy, which was repeated postoperatively in 2019. The patients' demographic information, glaucoma diagnoses, and basic ocular information were obtained on chart review. Anterior segment OCT was conducted for patients who underwent sAGV to evaluate the sulcus tube position. Gonioscopy was performed to document peripheral anterior synechiae (PAS). Linear mixed-effects models were used to compare the different ocular and endothelial measurements between the 2 groups and to identify risk factors for endothelial cell density (ECD) loss over time. MAIN OUTCOME MEASURES: Monthly change in corneal endothelial measurements, including ECD and coefficient of variation (CV), calculated as the difference between preoperative and postoperative measurements divided by the number of months from the time of surgery to postoperative specular microscopy. RESULTS: The acAGV and sAGV groups were comparable in all baseline characteristics except that the acAGV group had longer follow-up (37.6 vs. 20.1 months, respectively, P < 0.001). Mean monthly loss in central ECD was significantly more in the acAGV group (mean ± standard deviation: 29.3±29.7 cells/mm2) than in the sAGV group (15.3±20.7 cells/mm2, P < 0.0001). Mean monthly change in CV was similar between the 2 groups (P = 0.28). Multivariate analyses revealed that younger age and tube location in the AC were associated with faster central ECD loss (P = 0.02, P < 0.0001, respectively). For patients with sAGV, while PAS was associated with faster central ECD loss (P = 0.002), a more forward tube position tenting the iris was not (P > 0.05). CONCLUSIONS: Compared with anterior segment placement, ciliary sulcus tube implantation may be a preferred surgery approach to reduce endothelial cell loss in pseudophakic patients.

Visual Axis Opacity after Intraocular Lens Implantation in Children in the First 2 Years of Life: Findings from the IoLunder2 Cohort Study.

PURPOSE: Appropriate correction of aphakia is key to good outcomes. There may be clinical settings where and populations in whom accessing or managing aphakic contact lenses is challenging. Strategies to target the increased risk of visual axis opacity (VAO) after primary intraocular lens (IOL) implantation in infancy are necessary. We describe the predictors of VAO after primary IOL implantation for unilateral or bilateral congenital or infantile cataract in children younger than 2 years of age. DESIGN: Population-based (United Kingdom and Ireland), prospective, inception cohort study undertaken through a national clinical network. PARTICIPANTS: A total of 105 children (57 with bilateral cataract, 48 with unilateral cataract, total 162 eyes) undergoing primary IOL implantation in the first 2 years of life between January 2009 and December 2010. METHODS: Observational longitudinal study with multilevel, multivariable modeling to investigate associations between outcome of interest and child- and treatment-specific factors, including age, axial length, socioeconomic status, IOL model, and postoperative steroid use. MAIN OUTCOME MEASURES: Postoperative proliferative or inflammatory visual axis opacity (VAO) requiring surgical correction. RESULTS: Visual axis opacity occurred in 67 eyes (45%), typically within the first postoperative year. Use of a 3-piece IOL model (odds ratio [OR], 0.3; 95% confidence interval [CI], 0.09-0.99, P = 0.03) and increasing age at surgery (OR, 0.97, 95% CI, 0.95-0.99, P = 0.02) were each independently protective against the development of proliferative VAO. Inflammatory VAO was independently associated with socioeconomic deprivation (OR, 5.39; 95% CI, 1.46-19.89; P = 0.01). CONCLUSIONS: Visual axis opacification is common after IOL implantation in early childhood. The findings of this prospective cohort study suggest that the use of 3-piece IOL models may reduce the risk of pseudophakic VAO in children younger than 2 years of age.

Eradication of Posterior Capsule Opacification: Documentation of a Marked Decrease in Nd:YAG Laser Posterior Capsulotomy Rates Noted in an Analysis of 5416 Pseudophakic Human Eyes Obtained Postmortem.

OBJECTIVE: (1) To report the neodymium:yttrium-aluminum-garnet (Nd:YAG) laser posterior capsulotomy rate (%) of eight rigid and foldable intraocular lens (IOL) designs in a series of 5416 pseudophakic human eyes obtained postmortem, accessioned in our center between January 1988 and January 2000. (2) To identify factors that are instrumental in reducing the incidence of posterior capsule opacification, (PCO, secondary cataract) and hence the need for Nd:YAG laser posterior capsulotomy. DESIGN: Comparative autopsy tissue analysis. PARTICIPANTS: A total of 5416 globes with posterior chamber intraocular lens (PC-IOLs) obtained postmortem received from Lions Eye Banks between 1988 and 2000. METHODS: Miyake-Apple posterior photographic technique. Special reference was given to the presence or absence of Nd:YAG laser posterior capsulotomy orifice on the posterior capsule of each eye. MAIN OUTCOME MEASURES: The Nd:YAG laser posterior capsulotomy rate (%) as of January 2000 was documented. In addition, the Nd:YAG laser posterior capsulotomy rate for each lens was plotted on a monthly basis for the same period, creating a computerized trend or "timeline" for each IOL style. RESULTS: Relatively high Nd:YAG laser posterior capsulotomy rates ranging from 20.3% to 33.4% were noted with four relatively older designs (high incidence of implantation between 1988 and the early 1990s). Four modern foldable lOLs manufactured from silicone and acrylic materials had significantly lower Nd:YAG laser posterior capsulotomy rates ranging from 0.9% (Alcon Acrysof) to 17.1%. The difference in Nd:YAG rates among the eight IOL designs was found to be significant (P < 0.0001, chi-square test). Comparing foldable versus rigid designs, the foldable IOLs were associated with a much lower Nd:YAG laser posterior capsulotomy rate (14.1% vs. 31.1%). CONCLUSIONS: By use of the six factors regarding surgical technique and IOL choice described in this article, we strongly believe that the overall incidence of PCO and hence the incidence of Nd:YAG laser posterior capsulotomy is now rapidly decreasing from rates as high as 50% in the 1980s to early 1990s. Surgical tools and IOLs are now available to bring these rates down to single digits. Careful application and use of these tools by surgeons can genuinely lead in the direction of virtual eradication of secondary cataract, the second most common cause of visual loss worldwide.

Uveitis-glaucoma-hyphema syndrome with sclera-fixed posterior-chamber two-haptic intraocular lens in a highly myopic eye: a case report.

BACKGROUND: We report a case of uveitis-glaucoma-hyphema (UGH) syndrome in a highly myopic pseudophakic eye with seemingly normal positioning of a two-haptic intraocular lens (IOL). CASE PRESENTATION: The patient was a 61-year-old woman suffering recurrent episodes of blurred vision, floaters, redness, elevated intraocular pressure (IOP), and pain in the right eye following implantation of a sclera-fixed IOL. The symptoms were alleviated by the systemic and topical administration of IOP-lowering and anti-inflammatory medications. A slit-lamp examination revealed depigmentation and atrophy of the iris, and a quiet anterior chamber in the right eye. Endophthalmitis caused by hypovirulent bacteria and UGH syndrome were both considered. Ultrasound biomicroscopy (UBM) and gonioscopy provided direct evidence of malpositioned IOL haptics, which pushed the root of the iris forward, resulting in persistent mechanical chaffing, the probable cause of UGH syndrome. IOL explantation resolved her symptoms. Negative bacterial culture results for the IOL excluded the possibility of endophthalmitis. CONCLUSIONS: Heightened awareness of underlying UGH syndrome and prompt UBM are important when doctors encounter a patient with a sclera-fixed IOL suffering from recurrent anterior segment inflammation and elevated IOP.

Cystoid macular oedema following cataract surgery: A review.

Pseudophakic cystoid macular oedema (PCMO) remains a significant cause of compromised postoperative vision in contemporary cataract surgery. Well-established risk factors include intraoperative complications such as posterior capsule rupture and preoperative factors including: diabetes mellitus, uveitis, retinal vein occlusion, epiretinal membrane. The role of topical glaucoma medications in PCMO continues to be debated. Current treatment strategies largely target suppression of inflammation. Topical NSAIDs remain the mainstay in prophylaxis and treatment of PCMO. Topical corticosteroids are commonly used as monotherapy or in combination with NSAIDs. Unfortunately, high-quality trials are notably lacking for other PCMO treatment modalities such as: periocular corticosteroids, orbital floor triamcinolone, intravitreal triamcinolone, corticosteroid implants, intravitreal bevacizumab and pars-plana vitrectomy. A lack of consistency in defining PCMO and resolution of PCMO explains why even large systematic reviews may come to contradictory conclusions. This review explores the varied contemporary evidence-base in relation to the aetiology, diagnosis, prophylaxis and treatment of PCMO.

Preexisting epiretinal membrane is associated with pseudophakic cystoid macular edema.

PURPOSE: The purpose of the present study was to evaluate whether preexisting epiretinal membrane (ERM) is a significant risk factor for developing pseudophakic cystoid macular edema (PCME). METHODS: Two hundred four consecutive eyes and 153 consecutive eyes without preexisting epiretinal membranes were retrospectively compared regarding PCME development following phacoemulsification with posterior chamber lens implantation. Patients with vascular retinal diseases, uveitis, trauma, neovascular macular degeneration, chronic inflammatory conditions, diabetic retinopathy, endophthalmitis, eventful cataract surgery, and combination of cataract surgery and vitrectomy during the observation period were excluded. Macular examination was performed using spectral-domain optical coherence tomography (SD-OCT) before as well as at 4, 8, 12, 16, 24, and 36 weeks after cataract surgery. Univariate and multivariate logistic regression analyses were calculated. RESULTS: PCME occurred in 32 of 204 eyes with preexisting ERM (15.7%), whereas 9 of 153 eyes without preexisting ERM (5.9%) developed PCME. The risk of PCME was significantly increased in eyes with ERM (p = 0.007). By multivariate logistic regression analysis, factors predictive of PCME included the history of previous pars plana vitrectomy for retinal detachment (odds ratio (OR) 3.619 [95% confidence interval (CI) 1.242 to 10.258]; p = 0.016) as well as the preexistence of ERM (OR 3.885 [95% CI 1.162 to 17.762]; p = 0.04). CONCLUSION: Preexisting ERM seems to be associated with an increased risk of PCME following cataract surgery. Therefore, this risk should be considered in surgery planning, preoperative medication, and follow-up care after surgery.

[Capsule contraction syndrome in pseudophakia]. / Kontraktsionnyi kapsuliarnyi sindrom pri artifakii.

This is a review of the literature on capsule contraction syndrome (CCS) in pseudophakic patients that involves severe fibrosis along the margin of the anterior capsule's opening and progressive contraction of the capsular bag. Possible causes of CCS and principles of its prevention and treatment have been analyzed.

[Combined YAG-laser capsulotomy in pseudophakic patients with anterior capsular contraction syndrome]. / Tekhnologiia kombinirovannoi lazernoi kapsulotomii pri perednekapsuliarnom kontraktsionnom sindrome v artifakichnykh glazakh.

Progressive metaplastic fibrosis of the anterior capsulorhexis opening is a frequent complication of the postoperative period. There is a widely practiced method of anterior capsular contraction syndrome (ACCS) correction through radial anterior laser capsulotomy. Despite many advantages, it can be complicated by unpredictable anterior capsule tearing and intraocular lens (IOL) dislocation into the vitreous Body, which justifies the search for new technical solutions. AIM: to develop a safe technique of combined laser anterior capsulotomy (LAC) in patients with ACCS. MATERIAL AND METHODS: The study included 19 patients (20 eyes) with ACCS. The suggested LAC technique involved two differently directed YAG-laser cuts that could be regarded as a combination of radial anterior capsulotomy and anterior peripheral linear capsulotomy. With the cuts located perpendicularly to each other, the distal end of each radial cut was connected to the middle of each longitudinal cut. RESULTS: The suggested technique allows an increase in the anterior capsulorhexis diameter up to more than twice the pre-laser size. The difference between the average pre- and post-laser capsulorhexis diameters was statistically significant (р<0.0001). Neither case developed an unpredictable anterior capsule tear. CONCLUSION: The safety of the new technique is ensured by preliminary longitudinal cuts that create a barrier against unpredictable radial tears in the capsular bag during radial capsulotomy.

United Kingdom National Ophthalmology Database Study of Cataract Surgery: Report 3: Pseudophakic Retinal Detachment.

PURPOSE: To investigate time to pseudophakic retinal detachment (RD) after cataract surgery with posterior capsule rupture (PCR) to provide an evidence-based guide for postoperative management. DESIGN: Retrospective case series. PARTICIPANTS: A total of 61 907 eyes of 46 824 patients undergoing cataract surgery. METHODS: Subanalysis of the United Kingdom Royal College of Ophthalmologists' National Ophthalmology Database from 13 sites where data on both cataract and vitreoretinal surgery were recorded on the same electronic medical records system. Overall, 61 907 cataract operations were performed between October 2006 and August 2010. Analyses were restricted to cases with at least 3 months of potential postoperative follow-up. RESULTS: Pseudophakic RD surgery was performed on 131 eyes of 129 patients (0.21%; 95% confidence interval [CI], 0.18%-0.25%). Of these, 36 were in eyes that had PCR during cataract surgery (3.27%; 95% CI, 2.37%-4.50%) and 95 were in eyes that did not have PCR (0.16%; 95% CI, 0.13%-0.19%). For eyes that progressed to RD surgery, the median time to pseudophakic RD surgery was 44 days for eyes with PCR, and 6.3 months for eyes without PCR. For all eyes (both with and without PCR), pseudophakic RD occurred earlier in cases performed by a trainee cataract surgeon. CONCLUSIONS: Pseudophakic RD occurs earlier after cataract surgery complicated by PCR. Surgeon grade is a risk factor for pseudophakic RD. Posterior vitreous detachment and RD symptoms should be discussed with patients who undergo cataract surgery and have PCR to facilitate early attendance, and careful dilated postoperative examination for retinal tears is recommended in the first 2 months after surgery.

Risk Factors and Incidence of Macular Edema after Cataract Surgery: A Database Study of 81984 Eyes.

PURPOSE: To define the incidence of pseudophakic macular edema (PME) after cataract surgery and to identify contributory risk factors. DESIGN: Retrospective database study of electronic medical records (EMRs). PARTICIPANTS: A total of 81984 eyes undergoing cataract surgery between December 2010 and December 2014 from 8 independent United Kingdom clinical sites. METHODS: Structured clinical data mandated by the EMR were anonymized and extracted for each eye undergoing cataract surgery including: perioperative visual acuity, copathologic features, simultaneous surgical procedures, and the presence or absence of a specified list of intraoperative complications. Diabetic status with matched Early Treatment Diabetic Retinopathy Study (ETDRS) grading also was mandated by the EMR. Eyes receiving prophylactic nonsteroidal anti-inflammatory drugs were excluded. MAIN OUTCOME MEASURE: Diagnosis of cystoid macular edema or new-onset macular edema in patients with diabetes, recorded by a healthcare professional within 90 days of surgery. RESULTS: Baseline incidence of PME in eyes without operative complications, diabetes, or risk factors was 1.17%. Eyes in which PME developed were more likely to be male, older, and to demonstrate risk factors. The relative risk (RR) was increased in eyes with capsule rupture with or without vitreous loss (RR, 2.61; 95% confidence interval [CI], 1.57-4.34), a previous diagnosis of epiretinal membrane (RR, 5.60; 95% CI, 3.45-9.07), uveitis (RR, 2.88; 95% CI, 1.50-5.51), retinal vein occlusion (RR, 4.47; 95% CI, 2.56-5.92), or retinal detachment repair (RR, 3.93; 95% CI, 2.60-5.92). High myopia, age-related macular degeneration, or prostaglandin analog use were not shown to increase risk. Eyes with PME on average had poorer postoperative visual acuity, which persisted to the latest time point assessed, up to 24 weeks. Eyes from patients with diabetes, even in the absence of retinopathy, had an increased RR (RR, 1.80; 95% CI, 1.36-2.36) of new macular edema after surgery. The risk was higher in the presence of any diabetic retinopathy (DR; RR, 6.23; 95% CI, 5.12-7.58) and rose proportionately with increasing severity of DR. CONCLUSIONS: Pseudophakic macular edema occurs commonly after phacoemulsification cataract surgery, even in the absence of complications and risk factors. This large retrospective study using structured EMR data quantified the RRs of PME and the risk with increasing ETDRS severity of DR. It highlights the need for prophylactic therapy, especially in those groups of eyes with the highest RRs.

Longitudinal analysis of the structural pattern of pseudophakic cystoid macular edema using multimodal imaging.

PURPOSE: To describe the relationship between pseudophakic cystoid macular edema (CME) progression and retinal structural changes observed by spectral-domain optical coherence tomography (SD-OCT) and fluorescein angiography. METHODS: Retrospective, consecutive, longitudinal imaging analysis of patients with acute pseudophakic cystoid macular edema. Two observers at two study centers evaluated all images and categorized the macular structural features based on the retinal layer involved with cystic changes and/or subretinal fluid. A time series of the structural pattern and visual acuity was constructed for 1-month intervals over a 6-month study period. RESULTS: Thirty nine patients presented with CME. The mean time since cataract extraction was 48 ±38 days (range 5-71). CME included inner nuclear layer (INL) cystic changes, outer plexiform layer (OPL) cystic changes, and subretinal fluid. Isolated INL changes were observed in four phakic fellow eyes. Isolated OPL morphology was not observed, and additional inner layers remained uninvolved. Resolution occurred rapidly following administration of periocular glucocorticoids, and typically demonstrated a reverse structural pattern or delayed subretinal fluid resolution. Isolated subretinal fluid or a combined INL and subretinal fluid structure indicated CME resolution. CONCLUSION: Acute and recurrent pseudophakic CME involves a directional progression of the retinal layer involved with cystic changes and a clinical course. CME begins with INL cystic changes, progresses to combined INL and OPL morphology, and may continue to involve subretinal fluid. The inner nuclear layer is the most frequently involved layer, and isolated INL cysts may occur in phakic fellow eyes. A three-layer structure, the presence of OPL morphology, or isolated INL early in the postoperative period indicates disease activity.

NONSUPINE POSITIONING IN MACULAR HOLE SURGERY: A Noninferiority Randomized Clinical Trial.

PURPOSE: To determine whether nonsupine positioning (NSP) is noninferior to face-down positioning (FDP) in full-thickness macular hole (FTMH) surgery. METHODS: This is a single-center, open-label, randomized controlled trial. Between October 2013 and October 2014, pseudophakic participants underwent pars plana vitrectomy, internal limiting membrane peeling, and perfluoropropane gas tamponade and were randomly allocated to either FDP or NSP. The primary (noninferior) outcome was FTMH closure. The sample size was based on an estimated 95% closure rate and a -15% noninferiority margin for the NSP group. The secondary outcome was Early Treatment Diabetic Retinopathy Study visual acuity at 3 months. Additionally, intraocular gas fill on postoperative Day 4 was measured. RESULTS: Eighty-one participants were enrolled. Final analysis of 68 participants demonstrated equal closure rates in both positioning groups: 33/34 (97.1%; 95% confidence interval: 84.7-99.9). Closure rates in the ≥400-µm FTMH subgroup were similar, 93.8% and 100.0% in the FDP and NSP groups, respectively (P = 0.43). Final visual acuity did not differ significantly between the groups (P = 0.60). Median gas fill was 78% (range: 57-86) in the FDP group and 76% (range: 56-85) in the NSP group (P = 0.51). Gas fill in closed FTMHs was significantly higher than in unclosed FTMHs (P = 0.02). CONCLUSION: Nonsupine positioning is noninferior to FDP in FTMH surgery. Furthermore, results suggest that the degree of gas fill affects FTMH closure.

PROSPECTIVE RANDOMIZED SUBJECT-MASKED STUDY OF INTRAVITREAL BEVACIZUMAB MONOTHERAPY VERSUS DEXAMETHASONE IMPLANT MONOTHERAPY IN THE TREATMENT OF PERSISTENT DIABETIC MACULAR EDEMA.

PURPOSE: To compare intravitreal bevacizumab monotherapy with intravitreal dexamethasone delayed delivery system monotherapy for persistent diabetic macular edema. METHODS: Single-center, randomized, subject-masked study of eyes with persistent diabetic macular edema, defined as central subfield thickness (CST) >340 µm despite ≥3 anti-vascular endothelial growth factors injections within 5 months. The intravitreal bevacizumab monotherapy (n = 23 eyes) and delayed delivery system monotherapy (n = 27 eyes) groups received treatments q1month and q3months, respectively. RESULTS: Baseline best-corrected visual acuity and CST were similar in the two groups. At Month 7, the mean final best-corrected visual acuity (mean ± SD) was 65 ± 16 letters (mean Snellen visual acuity 20/50) and 64 ± 11 letters (20/50) (P = 0.619), the mean change in best-corrected visual acuity was +5.6 ± 6.1 and +5.8 ± 7.6 letters (P = 0.785), the mean final CST was 471 ± 157 and 336 ± 89 µm (P = 0.001), and the mean change in CST was -13 ± 105 and -122 ± 120 µm (P = 0.005) in the intravitreal bevacizumab monotherapy and delayed delivery system monotherapy groups, respectively. The number of injections was 7.0 ± 0.2 and 2.7 ± 0.5 (P < 0.001) in the 2 groups. CONCLUSION: The two groups had similar best-corrected visual acuity gains. The delayed delivery system monotherapy group achieved a significantly greater reduction of CST compared with the intravitreal bevacizumab monotherapy group, with a q3month interval of treatment, and had no recurrent edema at any visit.

Pseudophakic angle-closure from a Soemmering ring.

BACKGROUND: Report of three patients with pseudophakic angle-closure from a Soemmering ring. Three mechanisms of the Soemmering ring induced pseudophakic angle-closure in three patients were demonstrated by meticulous anterior segment examination and ultrasound biomicroscopic (UBM) analysis. CASE PRESENTATION: In the first case, the Soemmering-capsule-IOL complex caused relative pupillary block similar to a phakic eye and was successfully treated with laser iridotomy alone. In the second case, an enlarged Soemmering ring provided posterior iris support in apposition to the anterior chamber angle. We performed a laser capsulotomy through the iridotomised hole. The last, a protruding Soemmering content causing absolute pupillary block became resolved after laser iridotomy and total Soemmering ring content removal. CONCLUSION: Angle-closure in pseudophakic eyes is uncommon. Several causes have been reported in the literatures including Soemmering ring. This is the first report on three different mechanisms of Soemmering ring related angle-closure in pseudophakic eyes. Ultrasound biomicroscopic analysis plays a crucial role as a diagnostic tool.

Angle closure caused by a plateau-like iris associated with an enlarged Soemmering's ring: a case report.

BACKGROUND: This study evaluated the anterior ocular segment in a pseudophakic eye with angle closure due to a plateau-like iris associated with Soemmering's ring, using ultrasound biomicroscopy (UBM) and anterior segment optical coherence tomography (AS-OCT). CASE PRESENTATION: A 60-year-old woman was referred from a local clinic due to sudden-onset ocular pain and uncontrolled intraocular pressure (IOP) in the left eye, which was 56 mmHg after treatment with latanoprost, timolol, and dorzolamide eye drops. Fourteen years earlier, she developed acute primary angle closure. At that time, because the IOP remained elevated after a peripheral iridectomy, cataract extraction combined with goniosynechialysis was added. After the IOP decreased to within the normal range, a secondary intraocular lens was implanted outside the bag. On this admission, UBM and AS-OCT images showed angle closure caused by the combination of a plateau-like iris and contact between the mydriatic pupillary margin and enlarged Soemmering's ring. After adding 2 % pilocarpine four times a day, the mydriasis resolved slightly, and the IOP decreased to the normal range between 8 and 18 mmHg. AS-OCT images showed re-opening of the angle structure after treatment with 2 % pilocarpine. CONCLUSION: The intraocular pressure and angle structure in eyes with a plateau iris after cataract extraction should be followed carefully.

[Study of vitreomacular interface in patients with pseudophakia by means of spectral optical coherence tomography]. / Issledovanie vitreomakulyarnogo interfeisa s pomoshch'yu spektral'noi opticheskoi kogerentnoi tomografii u patsientov s artifakiei.

AIM: to investigate the state of vitreomacular interface in pseudophakic patients by means of spectral optical coherence tomography (OCT). MATERIAL AND METHODS: Spectral OCT of the macular region was performed in 58 pseudophakic eyes that underwent laser treatment for secondary cataract, 28 newly pseudophakic eyes (day 1 after cataract phacoemulsification with IOL implantation), and 40 eyes with early senile cataract. RESULTS: A higher incidence of subclinical fibrosis of the internal limiting membrane was noted in pseudophakic patients after YAG laser surgery for secondary cataract as compared to cataract patients and those right after cataract phacoemulsification. CONCLUSION: Fibrosis of the internal limiting membrane significantly more often develops in the late period after cataract extraction as compared to patients with early senile cataract and those who have just underwent phacoemulsification surgery. Fibrosis of the internal limiting membrane arising in the late period after cataract extraction cannot be unambiguously attributed to either primary or secondary. The resolution of spectral OCT is high enough to allow detection of preclinical ultrastructural changes in the vitreomacular interface.

Perioperative retina evaluation of the cataract surgery patient.

PURPOSE OF REVIEW: To describe recent evidence regarding cataract surgery in patients with coexisting retinal disease, focusing on factors that are important to the perioperative evaluation and treatment of this patient population. RECENT FINDINGS: Studies in patients with age-related macular degeneration have yielded good visual gains without progression of neovascular disease or increased need for intravitreal antivascular endothelial growth factor therapy. Uveitic patients similarly gain vision on average, and control of inflammation remains paramount. Perioperative treatment with intravitreal antivascular endothelial growth factor and corticosteroid help mitigate postoperative macular edema in patients with diabetic macular edema. Risk of retinal detachment is elevated postcataract surgery, but evidence regarding prophylactic treatment of peripheral retinal pathology is lacking. Intracameral antibiotics have reduced rates of postcataract surgery endophthalmitis in recent population-based retrospective studies. SUMMARY: Favorable visual acuity outcomes are possible following cataract surgery in patients with retinal disease, including uveitis, diabetic macular edema, and age-related macular degeneration. Perioperative control of retinal disease activity is desired, but level 1 evidence to guide best practices regarding optimal timing and nature of perioperative treatment remains limited. Prevention of postoperative retinal detachment and endophthalmitis is deserving of additional study.

Choroidal thickness in clinically significant pseudophakic cystoid macular edema.

PURPOSE: To study the choroidal thickness with an enhanced depth imaging spectral domain optical coherence tomography in clinically significant pseudophakic cystoid macular edema (CME). METHODS: Twenty patients with CME after uneventful cataract surgery were included. Choroidal thickness was analyzed and measured at various points: subfoveal and 1.5 mm nasal, 1.5 mm temporal, 1.5 mm inferior, and 1.5 mm superior from the center of the fovea. We compare choroidal thickness between affected and fellow eyes. RESULTS: The mean subfoveal choroidal thickness measured in 28 eyes with CME was 229.14 ± 62.61 µm and 280.82 ± 79.09 µm in fellow eyes. At any point (subfoveal, 1,500 µm; nasal, 1,500 µm; temporal, 1,500 µm; inferior, 1,500 µm; 1,500 µm superior from the center of the fovea), the choroidal thickness of the affected eye was significantly (P < 0.01) thinner than that of the fellow eye. CONCLUSION: The thinner choroid in eyes with CME than in fellow eyes may suggest that the reduced choroidal blood flow in the choriocapillaris is also a possible factor of CME.

Descemet stripping automated endothelial keratoplasty in Fuchs' corneal endothelial dystrophy: anterior segment optical coherence tomography and in vivo confocal microscopy analysis.

BACKGROUND: To evaluate the in vivo corneal changes using in vivo confocal microscopy (IVCM) and anterior segment optical coherence tomography (AS-OCT) in patients with Fuchs' dystrophy who underwent Descemet stripping automated endothelial keratoplasty (DSAEK) and the relationship between these changes and the postoperative visual recovery up to 1-year follow-up. METHODS: Before DSAEK and 1 day, 3, 6 and 12 months after surgery 31 patients (39 pseudophakic eyes) underwent a complete ophthalmological evaluation including best corrected visual acuity (BCVA), IVCM (subepithelial haze, interface haze, graft thickness) and AS-OCT (graft thickness). RESULTS: Graft thickness measurements by AS-OCT were strongly correlated to those obtained using IVCM at every follow-up stage (intraclass correlation coefficient = 0.95 to 0.97 between 3 and 12 months, P < 0.001 for all coefficients). No correlation between BCVA and graft thickness measured by AS-OCT at any follow-up stage was found, while at 3 and 6 postoperative months the correlations between BCVA and preoperative subepithelial haze (r = 0.61, P < 0.001 and r = 0.46, P = 0.002), interface haze (r = 0.51, P < 0.001 and r = 0.46, P = 0.003), postoperative subepithelial haze (r = 0.43, P = 0.004 and r = 0.39, P = 0.001) were significant. CONCLUSIONS: The study confirmed corneal subepithelial haze and interface haze as important factors limiting visual acuity after DSAEK, while graft thickness was not related to BCVA.