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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...

Crisis Specs collection day brings happy faces all round

Volunteers took delight in dispensing to the Crisis at Christmas guests who returned this week to collect their glasses, with frames kindly donated by Specsavers and lenses and glazing by EssilorLuxottica.

Childhood headaches

The goal of this study was to compare headache resolution in children receiving or not receiving refractive correction. The authors conducted a retrospective review of 158 patients: 78 male and 80 female aged three to twelve years (mean eight). Twenty-seven...

Modification of surgery to reduce consecutive ET

Surgical treatment for recurrent exotropia (ET) predominantly depends on the primary surgery. Modification of surgical dose may be required in secondary procedures. The aim of this study was to compare surgical outcomes of modified and conventional secondary surgery using lateral...

DVD angle measurements

Surgical treatment for recurrent exotropia (ET) predominantly depends on the primary surgery. Modification of surgical dose may be required in secondary procedures. The aim of this study was to compare surgical outcomes of modified and conventional secondary surgery using lateral...

Refractive changes over time for fully accom esotropia

The purpose of this study was to determine refractive error changes across time and to define factors contributing to decompensation in patients with fully accomodative esotropia (FAET). This was a retrospective study of 223 patients with a mean age at...

Exotropic angle by PACT vs under translucent cover

The authors aimed to validate the photographic analysis with a translucent cover by comparing the results obtained from this analysis with the angle obtained by prism cover test (PACT) in patients with intermittent exotropia. This was a retrospective review of...

Google searches predict pathology after a solar eclipse

This light-hearted review identified that the Google search term, ‘my eyes hurt’ was trending on 8 April 2024, coinciding with the exact time when a total solar eclipse passed over the US. They identified the subregions that searched this term...

Aspiration of anteriorly migrated dexamethasone implant using an 18G intravenous cannula

Intravitreal dexamethasone (Ozurdex 0.7mg) is a biodegradable, sustained-release implant used to manage diabetic macular oedema, macular oedema secondary to retinal vein occlusion, and non-infectious posterior uveitis due to its anti-inflammatory effects and VEGF suppression [1]. While effective, the implant may...

The pyramid

The first time I attended the Congress of the Royal College of Ophthalmologists was now more than 10 years ago, though I still remember the excitement of wandering down the aisles in the exhibition hall marvelling at the stands and...

The results of the last survey Jun 2020

Firstly, my sincere thanks to those of you who responded to last edition’s survey. We had a record response. Laser was never my most exciting clinical treatment, but in this environment how I wish for even that degree of patient...

Time is vision in central retinal artery occlusion

Central retinal artery occlusion (CRAO) is a rare but devastating vascular episode that can have severe impact on vision. Treatment is very time-limited and needs to be initiated very quickly to salvage any vision. The majority of patients present to...