Surgeon Experience as a Risk Factor for Short-Term Failure for Ab Interno Gelatin Microstent: A Canadian Multicenter Propensity-Matched Study.

Purpose: To compare the efficacy and safety of early versus later ab interno gelatin microstent placement with mitomycin C.

Design: Canada-wide, multicenter, retrospective propensity score-matched cohort study.

Participants: Two hundred seventy eyes (135 early cases and 135 later cases) with no prior incisional surgery.

Surgeon perspectives on learning ab-interno gelatin microstent implantation.

Objective: To evaluate and compare the surgeon's learning experience with an ab-interno gelatin microstent (XEN-45, Allergan) to other glaucoma surgeries.

Design: Cross-sectional survey study.

Methods: All surgeons in Canada who used the gelatin microstent were identified and given an anonymous online survey (FluidSurveys, Survey Monkey) designed to evaluate key factors associated with the device, including prior surgical experience, patient selection criteria, analysis of each surgical step, and postoperative care.

Case Report: Xen Ab Interno Gel Stent Use in a Refractory Glaucoma Patient With Previous Filtration Surgeries.

This case study reports the successful implantation of the Xen ab interno gel stent in a 44-year-old man with refractory chronic open-angle glaucoma. The patient had multiple unsuccessful filtration surgeries including a trabeculectomy and 2 Ahmed glaucoma valves placed superotemporally and inferonasally oculus dexter. The patients intraocular pressure was reduced from 29 mm Hg preoperatively to 17 mm Hg 1 year after surgery, without any ocular complications.

Phaco-trabectome versus phaco-iStent in patients with open-angle glaucoma.

Objective: To investigate efficacy and safety of phaco-trabectome (PT) versus phaco-iStent (Pi) for intraocular pressure (IOP) control in open-angle glaucoma (OAG).

Design: Retrospective comparative case series.

Participants: A total of 70 eyes of 55 patients with OAG underwent either PT surgery by a single surgeon or Pi (insertion of 2 stents) by another surgeon in Canada between January 2010 and December 2012.

Trabecular Micro-Bypass Stent Use in Necrotizing Scleritis.

Purpose: In this case report, we describe the successful implantation of multiple trabecular micro-bypass iStents in a patient with necrotizing scleritis.

Design: The study design is a case report.

Participants: The participant was a patient who underwent multiple micro-bypass iStent surgery.

Implantation of 2 trabecular microbypass stents in a patient with primary open-angle glaucoma refractory to previous glaucoma-filtering surgeries.

Unlabelled: A 77-year-old woman with primary open-angle glaucoma was referred for surgical evaluation after failing to achieve target intraocular pressure (IOP) despite previous combined phacotrabeculectomy and Ahmed valve implantations. The IOP prior to surgery was 28 mm Hg on topical dorzolamide-timolol, latanoprost, and brimonidine. Trabecular bypass surgery with implantation of 2 iStents was performed.

Necrobiotic xanthogranuloma associated with necrotizing scleritis.

A 57-year-old man presented to the ophthalmology clinic with a red right eye. He denied pain, diplopia, tearing, and blurred vision. His medical history included asymptomatic annular plaques on the trunk and extremities for at least a decade.

Proposed pathogenesis for the delayed postoperative opacification of the hydroview hydrogel intraocular lens.

Purpose: To report the clinical, histopathologic, ultrastructural, and elemental features of 17 opacified Hydroview (Bausch and Lomb Surgical, Rochester, New York, USA) hydrogel intraocular lenses (IOL) necessitating explantation and discuss from a clinicopathologic perspective why these lenses became opacified. Interventional case series with clinicopathologic correlation.

Methods: Seventeen hydrogel lenses were explanted from 17 different patients owing to decreased visual acuity or quality of vision an average of 29 months after uneventful phacoemulsification and IOL implantation and associated with a granular-appearing opacification superficially within the optic.

Topical mitomycin treatment for primary acquired melanosis of the conjunctiva.

A case of primary acquired melanosis of the conjunctiva primarily treated with topical mitomycin chemotherapy is presented. The patient underwent treatment with one 2-week course of topical mitomycin 0.02% four times daily, followed 4 weeks later by a 2-week course of topical mitomycin 0.

Radiation-induced chorioretinal degeneration: a clinicopathological report of three cases.

Background: With the shift in radiotherapy toward the posterior segment and with the use of lead screens to shield the anterior segment, posterior segment lesions have become more readily recognized. The purpose of this study is to highlight the effects of ionizing radiation on the choroid and to demonstrate how this can result in visual loss, particularly if the macula is involved.

Methods: Histopathological study of three enucleated eyes of three patients who had received ionizing radiation: a 27-year-old woman who had received radiation as a child for a hemangioma of the left side of the face, a 16-year-old girl who had received radiation at age 11 years for a malignant mesenchymoma of the right maxilla, and a 4-year-old girl who had received radiation at age 1 year for a retinoblastoma of the right eye.

Accumulation of a black material around some titanium coupling posts.

Purpose: To report 5 patients with a black material accumulating in the conjunctiva around the titanium peg and sleeve systems.

Methods: Retrospective small case series. The clinical features of 5 patients were reviewed.