Efron Grading Scales for Contact Lens Complications, Butterworth-Heinemann

Abstract

The Efron Grading Scales provide a standard clinical reference for describing the severity of contact lens complications. Professor Nathan Efron, international lecturer in the field of the ocular response to contact lens wear and author of over 500 scientific works, developed the unique scales. They provide practitioners with a simple method of ocular condition grading, against which any future tissue change may be assessed and therefore enabling choices as to the best course of action.

The 16 sets of grading images cover the key anterior ocular complications of contact lens wear. The conditions are illustrated in five stages of increasing severity from 0 to 4, with 'traffic light' colour banding from green (normal) to red (severe) - providing a simple and convenient aid for the optical professional.