You searched for "exposure"

430 results found

Retroauricular myoperiosteal auto graft for orbital implant exposure

In this retrospective, observational study authors reviewed 27 eyes of 27 anophthalmic patients with implant exposure who had received a retroauricular myoperiosteal graft. Their main outcome measure was long-term coverage of implant and the secondary outcome was rate of post-surgical...

Unexplained vision loss following exposure to combat

Non-organic vision loss (NOVL) is defined as a decrease in visual acuity or visual field without an identifiable organic cause. NOVL can be particularly challenging and time-consuming to diagnose, especially where the vision loss is superimposed on an element of...

Long scleral tunnel technique to prevent tube exposure of Ahmed glaucoma valve

This retrospective study was done to evaluate the efficacy of long scleral tunnel technique and compare it with pericardium patch graft in preventing tube exposure of Ahmed glaucoma valve. Seventy-eight eyes of 73 patients were included. In group 1 patients,...

Exposure to atomic bomb radiation and age-related macular degeneration in later life

This paper is one of the outcomes of the Adult Health Study; a cohort study of the atomic bomb survivors of Hiroshima-Nagasaki in Japan. It investigates the proposed association between pasty radiation exposure early in life and the presence of...

Randomisation, confounding & observational methods in ophthalmic epidemiology

Randomisation and confounding Understanding the relationship between an exposure and an outcome of interest is the central challenge in ophthalmic epidemiology. The exposure may be aetiological, taking the form of a putative risk biological factor, or therapeutic, in the form...

Systemic pharmacology of intravitreal anti-VEGF

This study aimed to evaluate and compare serum drug concentrations and plasma free-VEGF concentrations in patients with AMD, DME, or RVO receiving intravitreal injections of aflibercept, bevacizumab or ranibizumab. This prospective study enrolled patients from several offices of a single...

Analysis and outcome of explanted hydroxyapatite orbital implants

This is a retrospective case series over 11 years of 25 patients with exposed synthetic hydroxyapatite orbital implants who underwent explantation and simultaneous replacement with a dermis fat graft. All patients had signs of infection and had been treated with...

Laser pointer maculopathy

The objective of this study was to describe the potential clinical presentations of retinal pathology resulting from exposure to laser pointers. The study included eight eyes of seven patients. Mean age was 18.7 years (12-36). Most were accidental self-inflicted while...

A simple technique for managing eyelid retraction in a patient with an exposed Boston type 2 keratoprosthesis (Kpro)

The article describes a patient with mucous membrane pemphigoid and a Boston type 2 Kpro. In the early postoperative period (one week) inferior skin retraction was noted with exposure of the Kpro and carrier cornea. The exposure was managed by...

Air toxicity on retinal pigment epithelium

This study investigated the potential toxic effects of air on primary human retinal pigment epithelial (RPE) cells in vitro. Clinically during pars plana vitrectomy air is used as either a temporary tamponade during air-fluid exchange or mixed with gas to...

Globes in space: What would happen to our globes on the globe of Mars?

Many films have been made regarding life on alternative planets. With the Mars One mission approaching in 2023, there are high expectations regarding future interplanetary travel. The authors provide an ophthalmology perspective on what could happen to our eyes if...

Association between serum 25-hydroxyvitamin D levels and age-related cataracts

Cataractogenesis occurs as a result of ageing, smoking, exposure to UV radiation and genetic predisposition. Antioxidants can reduce the cataract risk as found in animal models and humans and vitamin D is one of them. This epidemiological study based in...