You searched for "perimetry"

1483 results found

Pentacam vs. IOL Master keratometry measurement in IOL power calculations

The IOL Master measures only the anterior corneal curvature and estimates the total corneal power by assuming a fixed relationship between the anterior and posterior corneal surface. The Pentacam measures both the anterior and posterior corneal surface and therefore calculates...

Tumour deposits following choroidal melanoma treatment

The authors present the unique case of retinoinvasive melanoma following treatment of choroidal melanoma with brachytherapy. Uveal melanoma, the commonest intraocular malignancy in adults, presents as a pigmented mass in the choroid, ciliary body, or iris. A 79-year-old Caucasian male...

Non-organic visual loss

Patients can present to eye departments with various signs and symptoms (mostly symptoms) with no obvious organic cause. These patients can be labelled with any of a wide range of diagnoses such as functional visual loss, functional overlay, psychosomatic reaction...

What's trending Dec/Jan 2021

A round-up of the eye-related hot topics that have been trending on social media over the last few weeks. #threeblindmice US company Nanoscope Therapeutics has developed a new treatment which is hoped will restore vision in those affected by retinal...

Quality matters in the management of serious eye disorders

The author discusses the first quality standard for serious eye disorders from NICE and takes a look at new care models for enhanced service delivery. Patient backlogs pose risks to patient safety, with research showing that people are losing sight...

An unusual case of acute retinal necrosis

Case report A 40-year-old Caucasian male presented with a four-day history of redness and progressive painless reduction of vision in the left eye. His visual acuities were 6/4 in the right and 6/36 in the left. The left eye showed...

Gene therapy for inherited retinal disease: the Manchester Ocular Gene Therapy Group MDT service

The authors describe the process set up in Manchester for the optimum delivery and assessment of a new gene therapy treatment for patients with RPE65 IRD. Inherited retinal dystrophies (IRDs) are the second commonest cause of severe visual impairment in...

Cancer associated retinopathy

Abdul Muhyemin Tarin reviews the presentation, pathophysiology and management of this paraneoplastic syndrome. Case presentation A 60-year-old hypermetropic female patient presented with several months’ history of painless blurred vision. Visual acuity (VA) was 6/24 and 6/9-1 in right and left...

Grading of ocular inflammation in uveitis: an overview

Anterior uveitis is the commonest form of uveitis, which can lead to severe morbidity if not treated appropriately [1]. Data from general ophthalmology practices suggest around 90% of uveitis encountered by comprehensive ophthalmologists is anterior uveitis [2]. Intermediate (vitreous), posterior...

Ultra-widefield imaging in glaucoma: Documenting hypotony-related choroidal effusions after microshunt surgery

Ultra-widefield (UWF) imaging provides extended visualisation of the posterior segment beyond the traditional 30–50° field of view. It captures a broad view of the posterior pole and periphery in a single, quick, non-mydriatic acquisition. While its role in diabetic retinopathy...

An update on idiopathic intracranial hypertension

The incidence of Idiopathic intracranial hypertension (IIH) is increasing, likely in line with the worldwide epidemic of obesity. To date, there have been revisions in the terminology used and diagnostic criteria for IIH; these recognise the need to exclude secondary...

Intravitreal Bevacizumab for the prevention of postoperative proliferative vitreoretinopathy in high-risk patients

This single- centre observational retrospective study was conducted to evaluate the effect of intravitreal injection of bevacizumab at the time surgery for rhegmatogenous retinal detachment (RRD) repair on postoperative proliferative vitreoretinopathy (PVR) in patients at high risk selected by laser...