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3814 results found

MicroRNA mediate retinoblastoma signal transduction

MicroRNAs (miR) are small non-coding single-stranded RNA molecules, normally 22 nucleotides long. There is a large family of miR that control protein expression by binding to mRNAs, leading to their degradation. One important role of miR is in tumours where...

Scheimpflug images and graft rejection

This study aimed to assess corneal changes using 360-degree Scheimpflug images and pachymetry readings to outline screening parameters, which define graft rejection. Seventeen eyes of 16 patients developed clinically manifest allograft rejection two to 42 months after surgery – those...

Laser corneal refractive procedures – a review

Evolution of refractive surgery stays true to the quote of Theodore Roosevelt: “The more you know about the past, the better prepared you are for the future.” Refractive surgery is an evolving field, which thanks modern technologies for refining ideas...

Fixed or variable Muller’s muscle resection

This is a retrospective analysis of 60 patients who underwent posterior approach ptosis surgery utilising a Muller’s muscle resection. The study compares those who underwent a fixed resection length of 7mm of Muller’s muscle with those having a variable resection...

Periocular burns: a literature review of classification, management protocols and outcomes of treatment

The author provides a review of the current literature regarding the principles of classification, management protocols of acute ocular and periocular burns and the role of the burn and oculoplastic surgeon involved in their care. More than two-thirds of facial...

The art of ophthalmic simulations

For Dec/Jan 2024, I got in touch with Nicky Webster, a Principal 3D Artist at FundamentalVR (https://fundamentalsurgery.com). Nicky is also a registered medical illustrator, healthcare scientist and medical photographer. With over 18 years of experience working in various disciplines within...

Understanding spaceflight-associated neuro-ocular syndrome (SANS): what do we know?

Introduction Formerly known as visual impairment and intracranial pressure syndrome (VIIP), space-related neuro-ocular syndrome (SANS) is defined by a collection of ophthalmic and neurological findings in astronauts after long-term spaceflight [1]. Changes in the eyeball, such as hyperopic shift, during...

Paediatric ophthalmology training in Africa through the Juba-Bournemouth VISION 2020 LINK

One of the aims of the College of Ophthalmology of Eastern, Central and Southern Africa (COECSA) is to provide specialist ophthalmic training for practising ophthalmologists from its 11 member countries. A number of initiatives are enabling more ophthalmologists to undertake...

Effective management of dry eye and ocular surface disease

Experts recommend a consistent approach to diagnosis, therapeutic targeting by disease subtype and escalation of therapy when tear substitutes are not sufficient. Experts call for a consistent, unified approach to diagnosis of dry eye disease (DED), with a new simple...

HLA-B27 anterior uveitis

HLA-B27 has previously been shown to have an association with uveitis, ankylosing spondylitis, reactive arthritis, ulcerative colitis and psoriasis. The authors of this review provide an update of the epidemiology of HLA-B27 associated ocular disorders. There is great variation amongst...

Are retinal vein occlusions seasonal? And if so why might that be?

Some studies have reported a strong seasonal pattern to central retinal vein occlusion (CRVO) occurrence with a peak in January, but other studies have failed to replicate this finding. The authors sought to determine data for Stockholm’s seasonal variation in...

Disc margin delineation using spectral domain OCT

Observing progressive anatomical changes of the optic nerve head is essential in the detection of progression in glaucoma. Imaging devices continue to evolve and are useful in detecting change in established glaucoma, although probably less useful in an initial diagnosis....