You searched for "visual"

2274 results found

Headset perimetry

Visual field analysers are traditionally large table mounted devices, designed specifically for field capture and analysis. Over the last year or so a number of companies have started to disrupt this space with the introduction of headset-based field analysers, mostly...

Differences between ages and onset in functional network changes associated with reading Braille

Visual impairment affects learning ability, speed and accuracy required for reading, writing and learning memory in terms of educational performance. Braille training requires decoding of simple dots into meaningful words and sentences. The objectives of this study were to evaluate...

Vision measurements vs. self-rating

The aim of this study was to evaluate the association between self-rated vision status and tests of visual acuity, contrast sensitivity, stereoacuity, bilateral visual field and self-reported visual function in specific domains of near and far vision. The goal was...

Postural control in glaucoma patients with virtual reality

The authors report on a cross-sectional study evaluating postural control and history of falls in glaucoma patients. History of falls was obtained using the Falls Screening and Referral Algorithm. Postural stability was assessed using a force platform under four conditions:...

Reliability of kinetic perimetry in children and young adults

This study reports on normative visual field area, feasibility and repeatability of testing for a large sample size of healthy children and young adults, using Octopus semi-automated kinetic perimetry. Sample included 221 healthy volunteers aged 5-22 years. The study was...

Psychiatric Consequences of Ophthalmic Disease

In part two of this series on ophthalmology and psychiatry, the authors will cover the possible psychiatric consequences of ophthalmic disease. The following conditions will be discussed: a. Black patch psychosis b. Psychological state in blindness c. Phobias in the...

Innovation update: key advances in eyecare transformation in the last year

Vishal Shah and his co-authors reflect on examples of innovation in eyecare delivery published in the last year and the implications for the future of eyecare services. The “new normal” is an overused phrase to describe extraordinary measures that have...

Ophthalmic learning through the lens of cognitivism and constructivism

Learning in ophthalmology is multi-faceted, from understanding the fundamentals of eye anatomy and physiology to higher order skills such as performing cataract and vitreoretinal surgery. Having a strong foundation in the basics is a necessity for higher order knowledge synthesis,...

International orthoptics for stroke

The purpose of this study was to consider the practice of orthoptists internationally in care provision for post stroke visual impairment through an international survey. An online survey of 30 questions was circulated via the International Orthoptic Association and completed...

Reported cases of hemifield slide phenomenon

This article reports three cases of hemifield slide, a phenomenon whereby there is an inability to stabilise and fuse visual hemifields. It occurs with heteronymous visual field loss and is thought to result from the loss of corresponding retinal points....

Oral proton pump inhibitors in macular degeneration patients

The authors report five patients with advanced wet macular degeneration and poor vision with onset or enhancement of visual hallucinations with the use of proton pump inhibitors for heartburn management. The hallucinations were reversible with discontinuation of medication. The authors...

Microtropia as an amblyopia indicator

This study was undertaken to determine if microtropia with identity (straight eye anisometropia) is a reliable indicator of amblyopia following optical correction. This was a retrospective review of 532 children aged four to five years. After two months of glasses...