Improve your optometry skills with 64 introductory & specialist instruction videos, plus downloadable PDFs.
For : Optometry students - Pre-registration and novice optometrists - Optometrists returning to work - Junior eye doctors - Dispensing opticians and orthoptists preparing for refraction exams - Contact lens opticians, clinical assistants and eyecare educators
Created by Dr Frank Eperjesi, BSc PhD FCOptom DOrth PGCertHE | Senior Fellow HEA MBA MEd FInstLM | Registered Optometrist
One of the most important, but often forgotten parts of the visual field analysis is the setting up stage. Inadequate set up of the patient or the instrument or both is the most common cause for artefactual visual field defects.
The amount of fusional vergence that can be exerted to maintain clear and single binocular vision. Components of fusional vergence are: Sensory fusion - the ability to appreciate two similar images, one formed on each retina and interpret them as a single image. Motor fusion - the maintenance of ...
This test consists of a series of plates designed to provide a quick and accurate assessment of colour vision deficiency of congenital origin. Most cases are characterised by a red or green deficiency.
The test comprises selected paper colour samples. On each page, four colour samples surround a central spot and the subject must choose the one that most closely resembles the colour of the central spot. Each page provides possible protan, deutan or tritan confusions that may be mixed with a norm...