To study the effects of the specific simulated luminous environment on the visual performance of people with different vision, so as to provide an experimental basis for revising pilots' visionstandards.
METHODS:
A controlled randomized trial was conducted. Twenty-four volunteers were recruited and divided into four groups(1.0/1.0, 0.8/0.8, 0.6/0.6 and 0.4/0.4, decimalvision)according to right/left eyevisual acuity, with six subjects in each group. Each subject was tested for static distant vision, kinetic visual acuity, color vision, depth perception error and visual search time under the simulated luminous environments of sunlight, twilight, and on-cloud, respectively, to compare changes in the impact of distinctive luminous surroundings on the visual performance indicators of human beings with different vision.
Different luminous environments have a great impact on the visual performance of people with low vision, which poses a potential threat to flight safety.