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Evaluation of keratometry with a novel colour LED corneal topographer

1 October 2015 | | EYE - Cataract, EYE - Refractive
The Cassini topographer (i-Optics), which analyses corneal shape based on the reconstruction of specular reflections on 679 coloured LEDs, generates keratometry and is the new machine being compared in this study with other keratometry devices. The prospective comparative study included...

Relationship between nocturnal intraocular pressure elevation and diurnal intraocular pressure level in NTG patients

1 October 2015 | | EYE - Glaucoma
This group studies Korean normo-tension glaucoma (NTG) patients over a 24-hour period to assess if there was a relationship between nocturnal intraocular pressure (IOP) and diurnal IOP. They have previously suggested differences in diurnal IOP may have varying mechanisms of...

Retinal ischaemia on OCTA and diabetic retinopathy grade

1 April 2020 | | EYE - Vitreo-Retinal
The authors quite rightly point out that quantification of retinal ischaemia has the potential to serve as a biomarker for diabetic retinopathy disease progression. They set out to investigate the relationship between area of ischaemia on a swept source OCTA...
Ophthalmic Plastic and Reconstructive Surgery journal front cover image.

Aspirin and upper lid surgery

4 February 2021 | | EYE - Oculoplastic, EYE - Orbit
This is a double-blind randomised controlled trial of preoperative aspirin versus placebo in patients undergoing upper lid blepharoplasty or ptosis surgery. All enrolled patients were already taking aspirin and no other anti-platelet or anticoagulant drugs. All patients either had no...
JCRS journal cover image.

IOL power calculation formulas for myopic eyes undergoing cataract surgery after excimer laser

3 June 2021 | | EYE - Cataract, EYE - Refractive
The authors set out to compare the accuracy of four no-history formulas: Barrett True-K, Haigis-L, Shammas-PL, and Triple-S to calculate the intraocular lens (IOL) power in eyes with previous myopic photorefractive keratectomy or laser in situ keratomileusis, according to their...

Improved vision with perceptual learning

1 April 2014 | | EYE - General
This study examined whether the development of crowded near visual acuity can be stimulated and whether crowding effects can be reduced by perceptual learning. The authors compared a magnifier crowded task with a perceptual learning crowded task and perceptual learning...

Herpes zoster ophthalmicus: the essentials

24 July 2020 | | EYE - Cornea, EYE - General
Herpes zoster, also referred to as shingles, is a common infection most typically caused by the reactivation of varicella zoster virus that lies dormant (sometime for decades) in the dorsal root nerve ganglion following primary chickenpox infection [1]. In 10-20%...

Practical phacodynamics – making the most of your phacoemulsification machine

1 October 2018 | | EYE - Cataract, EYE - Refractive, EYE - General
Understanding phacodynamics is appreciating the subtleties in the dynamic changes of the fluidics and the ultrasonic power delivered. Kristina Southcott explains. Increase my vacuum! Increase my bottle height! Increase my phaco power! I frequently observe the above commands being directed...

What's trending Feb/Mar 2021

4 February 2021 | | EYE - General, EYE - Cornea, EYE - Orbit, EYE - Vitreo-Retinal
A round-up of the eye-related hot topics that have been trending on social media over the last few weeks. Happy New Year! Goodbye 2020, a year no one could have imagined, with our lives and headlines dominated by COVID-19 as...

Competition ratios: Is the future of ophthalmology too bright?

29 August 2023 | | EYE - General
In the UK, ophthalmology is a highly competitive speciality, attracting many medical graduates keen to pursue a career in this area. However, in recent years, the competition ratios for ophthalmology ST1 training posts have increased significantly, creating a challenging environment...

Doctor in the House

4 August 2021 | | EYE - General
“What’s the bleeding time?”“10 past 10 sir”. These are the famous lines uttered by Chief Surgeon Sir Lancelot Spratt (James Robertson Justice) and Medical Student Simon Sparrow (Dirk Bogarde) on a pre-op ward round at the fictional St Swithin’s Hospital,...

25 years of OCT

1 December 2016 | | EYE - Vitreo-Retinal, EYE - Imaging
David Huang first described optical coherence tomography (OCT) in 1991, in his seminal paper on the subject in Science. This method developed the work of others on ophthalmic interferometry, which essentially showed that measuring reflected light could be used to...