You searched for "visual"

2341 results found

Traumatic macular holes: reconstructive changes in foveal microstructures and visual predictor analysis, following surgical repair

The purpose of this paper was to investigate the reconstructive changes in foveal microstructures postoperatively and analyse the visual predictors in eyes with surgically closed traumatic macular holes (TMHs). This retrospective study analysed the data collected from 71 eyes of...

The role of spectral-domain OCT RNFL in revealing a pituitary adenoma with atypical visual fields

Pituitary adenomas classically cause bitemporal hemianopia by compressing the optic chiasm. However, in some cases, the pattern of visual field loss may be atypical and mimic homonymous hemianopia, depending on the direction and extent of tumour expansion. Spectral-domain optical coherence...

Using a driving simulator to explore the effect of visual field loss from optic disc drusen

The purpose of this study was to compare driving simulator performance of participants with visual field loss (VFL) from optic disc drusen (ODD) with a normally sighted control group and a group of individuals with glaucoma. Data on performance and...

Newer generation IOL platforms designed for high-quality visual performance after cataract surgery

Expanding intraocular lens (IOL) capabilities provide broadening options, ranging from next-generation monofocal IOLs for basic cataract surgery, to specialised premium IOLs for lens-based presbyopia correction and astigmatism correction at the time of cataract surgery. Rod McNeil considers several newer alternative...

Report on preoperative visual acuities of patients from two AMM surgical trips to Magdalena, Northern Bolivia

The Andean Medical Mission (AMM), founded in 2012, recently celebrated 12 years of dedicated service in the Bolivian Amazon, aiming to eliminate avoidable blindness. Over this period, AMM has successfully performed over 1700 surgeries, including for children with congenital or...

Visual outcomes after surgery for primary rhegmatogenous retinal detachment in era of microincision vitrectomy

This is a prospective, multicentre, nationwide study between 2016 and 2017, to investigate the preoperative ocular factors, surgical techniques (pars plana vitrectomy (PPV) or scleral buckling (SB), or combined procedures) for rhegmatogenous retinal detachment (RRD) and postoperative best corrected visual...

How to examine the visual system Part 2: Accommodation, pupils, fundoscopy and additional tests

Examining the visual system can be a tricky skill for medical students to master, yet it is a task that is frequently tested in examinations. This is the second of a two-part series of articles, which together aim to improve...

The evolution and visual prognosis of glial proliferation of different grades after macular hole surgery

This retrospective research study aimed to investigate the evolution of glial proliferation of varying grades after successful idiopathic macular hole repair and its effects on foveal microstructure and best-corrected visual acuity (BCVA). Two-hundred and two eyes were enrolled in this...

Childhood visual development in albinism and infantile nystagmus

The authors compare monocular and binocular development measures in 16 children with albinism, 10 with infantile nystagmus (INS) and 72 with normal vision to address interocular acuity differences, crowding ratios and binocular summation rates. The children were aged between four...

Optopol PTS 2000 Visual Field Analyser

Variety of threshold algorithms Flicker perimetry – Blue on Yellow. Comparison progression Kinetic testing Standard test reports and global indicies Automatic and manual kinetic perimetry 180° horizontal and 130° vertical testing range All Goldmann stimuli sizes and colours 30-2, 24-2...

Post-stroke visual impairment: how big is the problem, how do we identify it, what we can do about it, and why does it matter?

In the UK, 100,000 new strokes occur each year, with 1.3 million stroke survivors [1]. This article will focus on post-stroke visual impairment, discussing topics of how common it is, how it can be detected, possible management options and how...

Visual acuity outcomes after cataract surgery in type 2 diabetes (NIDDM): the action to control cardiovascular risk in diabetes (ACCORD) study

This is a retrospective case-control study of 1136 eyes enrolled in the 784 ACCORD patients receiving cataract surgery between 2001-2014. 362 / 1136 eyes had gradable fundus photography for diabetic retinopathy (DR). Seven hundred and sixty-two eyes (67.1%) achieved 20...