You searched for "Optics"

1420 results found

Embryology in clinical practice

The fascinating world of embryology is both beautiful and practical. It is a home video of our evolutionary history through the ages from the single cell through to the life aquatic, the development of gut, limbs and brain, and most...

Optical quality difference between monofocal and multifocal intraocular lenses

It is well known that multifocal intraocular lenses (IOLs) can generate more than one focus to restore distance and near vision, but patients may experience adverse optical phenomena such as decreased contrast sensitivity and induced glare or halos. The authors...

The results of the last survey Dec20

The responses to the first question in this survey demonstrate the need for it and the significant variation in practice we see in even relatively simple management decisions. Patients are seen regularly with occludable drainage angles and listed for YAG...

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...

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...

From the Editors: Back in the habit!

Recently I spoke at an ophthalmic conference in London. It was amazing to be back amongst friends and colleagues in person again, to learn and share with one another. I also took the opportunity to stay on for a few...

Image Analysis and Modelling in Ophthalmology

Recent advances have revolutionised ophthalmic imaging and helped understand the pathophysiology of ocular diseases and thus help in the diagnosis and management of ocular diseases. The authors of this book have gone through most of the available imaging techniques available...

Glaucoma UK’s World Glaucoma Week campaign to increase awareness of glaucoma risk factors

World Glaucoma Week is an annual initiative which brings health organisation and charities from around the world together to amplify health messages relating to glaucoma and raise awareness of the disease.

Acanthamoeba ability to adhere to different contact lenses

This study tested ability of Acanthamoeba lugdunensis trophozoites to adhere to silicon hydrogel contact lenses (SHCL) and how this is influenced by different multipurpose contact lens solutions (MPS). Three generations of SHCL were tested: first generation – Air Optix, second...

New runners inspired by London Marathon warned to consider their eye health amid thousands of sign-ups ahead of the event

Runners and would-be runners have been urged to ensure they have considered the best options for their eyesight if they are inspired to be more active by this year’s London Marathon.

The results of the last survey Jun23

*Please be aware that this data does not form part of a peer reviewed research study. The information therein should not be relied upon for clinical purposes but instead used as a guide for clinical practice and reflection. I continue...

Choroidal folds

Choroidal folds are undulations of the choroid, Bruch’s membrane and pigment epithelium, with wrinkling of the overlying retina. They may be idiopathic but can also be caused by a number of different conditions. Case report A 60-year-old male patient was...