ada.gif Ophthalmic Instrumentation

Mr David O'Brien, Dr Peter Davison

Researchers from the School of Physics researched and developed a number of awarding winning diagnostic ophthalmic instruments.

Shown here is the Automatic Dark Adaptometer, an instrument designed to investigate human dark adaptation (night vision). It is used as an aid in the diagnosis of specific eye diseases , such as retinal and choroidal diseases, retinitis pigmentosa. The instrument was intended for use as a screening device for vitamin A deficiency in developing countries as night blindness is an early symptom of this condition. Estimates indicate over one million children lose their sight each year as a consequence of this deficiency; associated morbidity and mortality rates are high.

Another instrument designed by this group is a test for the early detection of glaucoma based on the eye's sensitivity to flicker.