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Testing of binocular contrast sensitivity as an objective measure of severity in intermittent exotropia

The purpose of this study was to compare the binocular contrast sensitivity ratio (measured with the Vision CSV-100 vector chart) between 40 intermittent exotropia patients and 40 normal controls. The authors also evaluated the effect of intermittent exotropia compensation status...

The Ophthalmic Study Guide for Nurses and Health Professionals (2nd edition)

In the last decade, care provision in ophthalmology has changed dramatically. Due to increasing demands on the service, the roles of nurses and other healthcare professionals have expanded to encompass work that was traditionally carried out by doctors. This model...

PDI check Nintendo screening results

‘PDI check’ is a vision assessment game developed for the autostereoscopic upper screen on the Nintendo 3DS XL game console. Version 0.2.5 emphasises quick assessment of monocular acuity, stereoacuity and red-green colour deficiency. The purpose of this study was to...

How a paediatric population presented with diplopia

The authors present the results of a retrospective records review of 244 children presenting with diplopia over a three-year period. The majority of cases presented to paediatric ophthalmology clinic; other routes of presentation included eye casualty, neuro-ophthalmology or another eye...

Static subjective visual vertical (SVV) in the normal visual system

Graviception is the perception of a persons’ orientation relative to gravitational force. This can be measured by means of subjective verticals, which can be divided into three tests: subjective visual vertical (SVV), subjective postural vertical (SPV) and subjective haptic vertical...

Paraneoplastic optic neuropathy features

This is a retrospective review of seven patients diagnosed with paraneoplastic optic neuropathy (PON) between January 2015 and June 2017. Five patients had a history of primary malignancy, including papillary thyroid carcinoma, type B thymoma, testicular seminoma and lung carcinoma....

Effect of refractive corneal surgery on IOP and glaucoma progression

Accuracy of intraocular pressure (IOP) measurement depends on the biomechanical properties of the cornea, including its thickness central corneal thickness (CCT) and keratometry (K). Fifty-six eyes of 56 patients with primary open angle glaucoma (POAG) who had a history of...

Effect of intravenous mannitol in post vitrectomised eyes

The purpose of the study was to evaluate the effect of intravenous mannitol 20% on intraocular pressure in vitrectomised silicone-oil filled eyes. A prospective analysis of consecutive patients was undertaken with their fellow eyes taken as controls. Thirty-one patients were...

Optic nerve head perfusion response to reduced blood pressure and increased intraocular pressure

The purpose of this prospective study was to test the hypothesis that blood flow autoregulation in the optic nerve head has less reserve to maintain normal blood flow where there is a blood pressure induced decrease in ocular perfusion pressure...