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2873 results found

IOL power in short eyes

Prospective analysis of 269 eyes of 269 patients between 2017 and 2020, with axial length (AL) of 22mm or less. New principles for calculating IOL power were recently developed, including formulas based on paraxial ray-tracing (Barrett and Olsen) and based...

Comparing tensile strengths of two scleral fixated intraocular lenses: CT-Lucia and MA60

The authors designed a benchtop model to measure the tensile strengths and resistance to breakage of the haptics and haptic-optic junctions of the CT Lucia 602 (Carl Zeiss, California) and AcrySof MA60 (Alcon Laboratories, Texas) IOLs. For the haptic breakage...

Causes of abnormal head postures – literature review

Yadegari reports a narrative literature review for abnormal head postures (AHPs) with discussion on different causes. This review summarises the control of a normal head posture before discussing differences of ocular vs non-ocular AHPs. Ocular AHPs may be adopted to...

Retinal pigment epithelium tears

In this paper the authors review the current knowledge of retinal pigment epithelium (RPE) tears. Although rare these can cause loss of visual acuity. They can occur spontaneously in pigment epithelial detachment (PED) due to occult choroidal neovascularisation (CNV), retinal...

The Association of British Dispensing Opticians (ABDO) achieves carbon neutrality

The Association’s emissions have been reduced using a blend of offsets from a Gold Standard wind project and a Verra CCB4 forestry project to mix biodiversity protection and restoration with fuel switching to renewable energy.

Amblyopia information provided by chatbots – how readable and understandable is this?

The purpose of this study was to evaluate the understandability, actionability and readability of responses to frequently asked questions about amblyopia provided by ChatGPT-3.5, Bing Chat, Bard and the American Association for Pediatric Ophthalmology and Strabismus (AAPOS) website, along with...

How to examine the visual system Part 1: visual acuity, visual fields and eye movements

Asking candidates to perform an examination of the visual system, either as part of a full cranial nerve exam or as an individual entity, is a common station in practical examinations during medical school. It is important to practise for...

Stereopsis changes with cataract

Stereoacuity was compared preoperatively to six weeks postoperative after cataract extraction and intraocular lens (IOL) implant. The authors evaluated the association of postoperative stereoacuity with visual acuity, age and duration of preoperative symptoms. This prospective study recruited 142 patients: 92...

The 2021-2022 ophthalmology ST1 application process

Harry Rosen updates us on what is involved in the current UK Ophthalmology Specialist Training (OST) programme application process. The process of applying to the UK Ophthalmology Specialist Training (OST) programme is constantly changing each year, adapting to the needs...

The results of the last survey Apr23

*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. My thanks...

Retinal blood flow changes in glaucoma

This study examined the changes in retinal blood flow and vessel diameter after IOP reduction in high- and low-pressure glaucoma; exfoliation glaucoma (ExG) and normal-tension glaucoma (NTG). Glaucoma progression is seen at times in eyes despite IOP reduction and changes...

The College of Optometrists launches new CPD course in myopia management

The College of Optometrists has published a new online course for members to enhance their clinical expertise in myopia management. The new course, Part 1 – Myopia Management Essentials, explores different aspects of myopia and key risk factors for myopia...