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Vision screening standards for fitness to drive

Most countries require that vision meets a pre-defined standard in order to be legally permitted to drive, but these standards vary widely. The primary method by which vision is assessed to determine suitability for driving is by measuring visual acuity...

Preventing blindness from diabetes: planning a programme of service development and research across Malawi

In sub-Saharan Africa 19.4 million people have diabetes; this is projected to rise to 28.6 million by 2030 [1]. Sight loss from diabetes devastates the lives of working people, affecting the financial stability of the families and communities who depend...

Cataract surgery in corneal disease

Cataract surgery in the presence of corneal disease presents multiple challenges, from determining whether symptoms are lenticular or corneal in origin, to decisions regarding timing of surgery, intraocular lens (IOL) power calculation, IOL selection, surgical technique and perioperative care. Realistic...

Ophthalmic mentors: Professor Carrie MacEwen

Caroline (Carrie) MacEwen is a Consultant Ophthalmologist at Ninewells Hospital and Medical School, Dundee, and Head of the Ophthalmology Department at the University of Dundee (Honorary Professor). She trained in Glasgow, Dundee and London. Carrie took over as President of...

Comparison of degradation of stereoacuity with reduced visual input

The aim of this study was to investigate the differing extents to which stereo thresholds obtained with Frisby, TNO, Lang Stereopad and ASTEROID stereo tests are affected by changes in visual input in adults. Bangerter foils (0.2 and 0.4) were...

Molecular genetics of achromatopsia

Achromatopsia is a rare autosomal recessive disorder of the cone photoreceptors. Typical characteristics of affected patients include the inability to distinguish colours, impaired visual acuity, photophobia and nystagmus. The condition is said to be more frequent in the Pingelapese population...

Cornea teaching techniques: one cornea donor tissue for two purposes

There is a national shortage in the UK in corneal graft material [1,2]. The majority (69%) of corneal transplants in the UK are partial thickness, with 35% being Descemet membrane endothelial keratoplasty (DMEK) [2]. During the preparation of the donor...

Headset perimetry

Visual field analysers are traditionally large table mounted devices, designed specifically for field capture and analysis. Over the last year or so a number of companies have started to disrupt this space with the introduction of headset-based field analysers, mostly...

Eye research: where next?

Eye research in the UK is underfunded relative to other areas of medical research and general awareness of sight loss and its prevention remains poor, messages that were reinforced in presentations and discussions during a recent research summit meeting in...

Report on preoperative visual acuities of patients from two AMM surgical trips to Magdalena, Northern Bolivia

The Andean Medical Mission (AMM), founded in 2012, recently celebrated 12 years of dedicated service in the Bolivian Amazon, aiming to eliminate avoidable blindness. Over this period, AMM has successfully performed over 1700 surgeries, including for children with congenital or...

Pete’s day off

“You’re not dying. You just can’t think of anything good to do” The above is the explanation given by high school student Ferris to his friend Cameron, who is lying in bed feeling sorry for himself when he should be...

A randomised, controlled trial of oral propranolol in infantile haemangioma

Since its use was first reported in the New England Journal in 2008, propranolol has become the preferred treatment for infantile haemangiomas. However, there is no consensus as to the optimum dose or duration of treatment and there is a...