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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...

Blind and partially sighted actors star in charity films aimed at getting people to think #BeforeYouAsk

Leading sight loss charity the Royal National Institute of Blind People (RNIB) has released a series of humorous, yet challenging, #BeforeYouAsk short films as part of its See the Person, Not the Sight Loss campaign which aims to raise awareness of and dispel misconceptions about sight loss.

The Complainers

There she was. Sitting in the waiting room with her arms crossed, tut-tutting to herself and shaking her head mournfully every few minutes. We gazed at her from a safe distance while one of the nurses confirmed what we already...

Zeiss field machines, public Wi-Fi risks and IoT scanning

End of support for old field machines Zeiss have recently announced that they are withdrawing support contracts for many of their older 7 series Humphrey Field Analysers (HFAs) in November 2017. They have confirmed maintenance contracts can continue, but repairs...

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...

Use of off-the-shelf magnifying glasses as a cost-effective alternative for surgical loupes

Surgical loupes are an integral part of ophthalmic surgery on the ocular surface and in the periocular area. Available in different magnifications, they provide a clear view of the field of surgery which can greatly assist in identifying fine structures...