Archive | November 2014

More on visual standards for driving…

There’s been some press interest over the last couple of days in our study looking at visual acuity standards for driving. I gave an interview on the Drivetime show on BBC Radio Cambridgeshire yesterday, and The Times featured a piece this morning (although ignore the headline in the web based version, and also the photo unless it would be useful for a comedy┬álecture on “how not to do ophthalmoscopy”…).

Visual standards for driving

We have just published a paper in BJO which examines the relationship between the two UK visual acuity standards for driving: the ability to read a number plate at 20m, which has been a longstanding visual requirement for driving in the UK, and the ability to read 6/12 on a letter chart, which was introduced as a standard in 2012 to bring the UK into line with European directives.

There is not perfect equivalence between the standards: some drivers will be able to read a number plate but not the appropriate line on an acuity chart, while others will achieve the test chart requirement but not be able to read a number plate. These findings have implications for assessment of visual adequacy to drive, particularly for police officers and driving test instructors who assess the ability to read a number plate, and for optometrists and doctors who assess the visual acuity of drivers.

Latham K, Katsou MF, Rae S. Advising patients on visual fitness to drive: implications of revised DVLA regulations. Br J Ophthalmol doi:10.1136/bjophthalmol-2014-306173.

The effect of trial frames on adaptive gait

We have recently published a paper in ‘Gait & Posture’ examining whether the use of trial frames when correcting the vision of participants in adaptive gait studies might in itself alter adaptive gait. We found that this is indeed the case, and that wearing a full or half-eye trial frame made participants more cautious in an obstacle crossing task.

Timmis MA, Turner K, Latham K. The effect of trial frames on adaptive gait. Gait & Posture, 2014. DOI: 10.1016/j.gaitpost.2014.10.021

Low Vision certificate

Nov14 014b

I was very happy to receive my Professional Certificate in Low Vision at the College of Optometrists’ graduation at Central Hall, Westminster yesterday. A lovely day, and so nice to see colleagues and former students receiving awards. There may be some better photos, but thanks to Dad for taking this one! It’s very nice to have some certificated proof that I know at least a teensy bit about low vision!