|
KMID : 1159320180200040453
|
|
Korean Journal of Vision Science
2018 Volume.20 No. 4 p.453 ~ p.459
|
|
|
The Change of Accommodative Functions by Difference Density and Color
|
|
Jang Jung-Un
|
|
|
Abstract
|
|
|
Purpose : This study was to investigate the change of accommodative functions by different color density and color of colored lenses.
Methods : Participant had a normal NPC and no dyschromatopsia, phoria and eye disease, also had no histories of eye surgery in 31 students of university. Their accommodative functions were measured according to 50%, 80% density of the gray, blue, brown lens and non-colored lenses. Tests of accommodative functions performed include amplitude of accommodation, accommodative facility, relative accommodation, and accommodative lag.
Results : The amplitude of accommodation and accommodation lag were increased when wearing the colored lens. Negative relative accommodation was more increased when wearing the colored lens than achromatic. Positive relative accommodation increased when wearing the blue color lens density by 50%. Also, accommodation facility increased when wearing the colored lens, but, as the density of the color increased, the accommodation facility was decreased.
Conclusion : As since the accommodation function changes according to density of the colored lenses, working distance and environment of the wearing colored lens should be considered when selecting density and color of colored lenses.
|
|
|
KEYWORD
|
|
|
Colored lens, Amplitude of Accommodation, Accommodative Facility, Relative Accommodation, Accommodative Lag
|
|
|
FullTexts / Linksout information
|
|
|
|
|
|
Listed journal information
|
|
|
|