Direct Exchange of PerfluoroCarbon Liquid for Silicone Oil: A Surgical Technique to Control Pressure and Avoid Retinal Slippage.

Background/purpose: Perfluorocarbon heavy liquid (PFCL) is used in vitreoretinal surgery to flatten the unsupported detached retina before insertion of silicone oil in cases of giant retinal tear or relaxing retinectomy. Direct exchange of PFCL for silicone oil is recommended to reduce retinal slippage when compared with fluid-air exchange, but it is commonly regarded as a difficult procedure. We describe our technique for direct PFCL-silicone oil exchange using a 20-gauge drainage cannula, reliably avoiding the complications of retinal slippage and high intraoperative intraocular pressure.

COSUMO: study protocol for the development of a core outcome set for efficacy and effectiveness trials in posterior segment-involving uveitis.

Background: Uveitis, a group of disorders characterised by intraocular inflammation, causes 10-15% of total blindness in the developed world. The most sight-threatening uveitis affects the posterior segment of the eye (posterior-segment involving uveitis (PSIU)). Numerous different outcomes have been used in clinical trials evaluating alternative treatments for uveitis, limiting inter-trial comparison and aggregation of data.

Longitudinal Change in Central Corneal Thickness in the Tema Eye Survey.

Purpose: To determine the change and rate of change in central corneal thickness (CCT) and their determinants.

Design: Longitudinal observational population-based study.

Methods: A total of 758 normal and 58 glaucomatous subjects underwent complete eye examination, with CCT measurements at 2 separate visits.

Frontal Sinus Mucocele Formation as a Late Complication of External Dacrocystorhinostomy.

Two cases of frontal sinus mucocele post external approach dacrocystorhinostomy (DCR) surgery are reported. The possible anatomical causes of this condition are discussed and in particular, attention is drawn to the consideration of frontal sinus mucocele in patients presenting with frontal sinus symptoms post-DCR surgery.

Improved Adherence to Vision Self-monitoring with the Vision and Memory Stimulating (VMS) Journal for Non-neovascular Age-related Macular Degeneration during a Randomized Controlled Trial.

Objective: An educational, interactive journal [Vision and Memory Stimulating (VMS) journal] was developed to boost patient confidence and promote long-term adherence with weekly vision self-monitoring in age-related macular degeneration (AMD) patients at risk for vision loss from new-onset neovascularization.

Methods: In a multicenter randomized controlled trial, 198 subjects with intermediate stage, non-neovascular AMD received the VMS journal or followed usual care (e.g.