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Effect of oxygen levels on binocular summation of dark vision
Previous studies have reported conflicting results on the existence of binocular enhancement of dark vision. This study compares monocular and binocular absolute thresholds of dark adaptation in two different populations (healthy individuals and those with chronic respiratory insufficiency). The study...
A rare case of post-traumatic central retinal artery occlusion
Central retinal artery occlusion is rarely associated with traumatic optic neuropathy, this case report details of one such case. The reported case is of a ten-year-old boy presenting after a fall from height with loss of vision in one eye....
Risk factors for failed vision screening
Failure rates on vision screening tests were reported by age and racial / ethnic categories in a large sample of children with most aged 6-11 years. Many children resided in lower socioeconomic status areas. Data was taken from 9743 children....
Management of high AC/A esotropia
The purpose of this study was to determine the long-term effect of treating high accommodative convergence to accommodation (AC/A) esotropia with single vision lenses (SVL) compared with the effectiveness of using SVL on patients with basic refractive esotropia and a...
The rarebit vision test for macular conditions
Rarebit testing is used to measure low degrees of neuro-visual damage and is available for free on the internet. It consists of a fixed bright light dot presented on a black background. During testing it is presented briefly at different...
Screening for amblyopia
The purpose was to determine the validity of the OPTEC 5500 vision screener in detecting visual acuity and amblyopia in paediatric patients aged 3-17 years with comparison to the Lea and Snellen tests. This was a cross-section study of 64...
Is myopia protective against progression of diabetic retinopathy?
This population-based cohort study assessed the association of refractive error with the incidence and progression of diabetic retinopathy (DR); 1562 eyes of 860 patients with diabetes and gradable retinal photographs were included. Baseline data was taken between 2004-2009 and follow-up...
Access to eyecare based on geographical location
The authors aimed to evaluate access to paediatric ophthalmology using geo-informatics (OpenStreetMap software) with the objectives being to calculate driving time between vision screening centres and eyecare providers (ophthalmologists or optometrists) coupled with mapping to demographic information and economic census...
