Sine wave mesopic contrast sensitivity -- defining the normal range in a young population.

Purpose: Limited information is available regarding the normal range of mesopic sine wave contrast sensitivity (CS). The aim of this study was therefore to define a reference range and in addition to identify factors related to mesopic CS in a young population.

Methods: Individuals with normal visual acuity (VA) were included from a population of air crew members visiting the Institute of Aviation Medicine for routine medical examinations.