You searched for "zonules"

576 results found

Allergic conjunctivitis evaluation by thermography

Thermography is a non-invasive imaging technique, which uses infrared radiation reflected from an object to estimate the temperature of the object. This paper evaluates the use of thermography to assess allergic conjunctivitis objectively, by using an instrument called ocular surface...

Effects of topical anaesthetic on intraocular pressure

This prospective interventional study assessed the effects of repeated intraocular pressure (IOP) using Goldmann applanation tonometry and applanation resonance tonometry in six volunteers. Previous literature supports IOP reduction using repeated applanation tonometry. Repeated IOP measures were taken alternately on 12...

Effects of blood donation on the physiology of the eye

Hypovolaemia is a state of decreased blood volume, the reduction of which reduces tissue perfusion which may in turn lead to cellular hypoxia and end-organ damage. In blood donation, 500ml of blood is collected in ten minutes. This equates to...

Smartphone use and its effects on eyes

Longitudinal pilot study on 12 young healthy adults comparing effects of smartphone use over a 60-minute period. Reading conditions and smartphone use was standardised for all participants. Ocular symptoms, tear function and binocular vision were assessed before and after each...

Randomised controlled trial for large-angle exotropia surgery

The purpose of this study was to investigate single eye, single setting surgical options to correct 80–90PD of exotropia with two options of muscle transplant and suture hang-back recession. There was retention of anatomical limits of 6mm resection for medial...

Re-evaluation of virtual reality visual field testing

This study evaluated an updated testing algorithm to determine its dynamic range, and to assess if this produced a suitable central hill of vision, and to evaluate test-retest reproducibility in healthy children. This was a prospective study of children with...

Chemical injury

You are the on-call ophthalmologist. You receive a call from A&E regarding a 45-year-old man who sustained a chemical injury. He was mixing some cement, when a small amount entered his left eye. He was not wearing any protective goggles....

Addressing medical risk factors for diabetes and understanding the new systemic treatments

As global diabetes figures continue to rise, the importance of reducing the burden of macrovascular and microvascular complications of diabetes has never been so great. By 2025 it is estimated that five million people in the UK will have diabetes...

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...

What’s next in retinal imaging? Faster, deeper and full-on

Fast-evolving technological leaps are opening the way toward clinically useful ocular coherence angiography, generating 3-dimensional microvasculature maps without intravenous dye injection, as well as whole-eye imaging, handheld patient-operated optical coherence tomography (OCT) devices and, for challenging vitreoretinal procedures, integrated intraoperative...

Mumsnet engaged by ABDO, College of Optometrists and OSA to promote children’s vision

Mumsnet, the most significant platform in the UK for parents to share concerns, ideas and information regarding their children’s wellbeing, has been engaged by ABDO, The College of Optometrists and the OSA. The biggest network for parents, the site attracts...

A review of orbital plasmacytomas

This is a multicentre review of 30 patients with orbital plasmacytomas. There were equal numbers of males and females, and the average age at diagnosis was 57 years. All patients were either already diagnosed with systemic multiple myeloma or it...