Feedback: Blur sensitivity interactive

In two articles looking at blur sensitivity, Professor Edward Mallen defined blur sensitivity, blur adaptation and blur discrimination¹ and then looked at how blur sensitivity can influence aspects of the refraction undertaken during the routine eye examination.² These two articles were then used as the source material for an interactive CPD exercise.

Blur sensitivity is a measure of the ability of the visual system to detect blur. In research experiments, blur sensitivity can be assessed subjectively using relatively simple equipment, and can be expressed as a dioptric threshold. Such experiments are generally conducted monocularly and under cycloplegia and with a standardised artificial pupil.