|
KMID : 1011420210260040261
|
|
Journal of Korean Ophthalmic Optics Society
2021 Volume.26 No. 4 p.261 ~ p.266
|
|
|
Relationship between More Myopic Errors and Accommodative Functions after Nearwork
|
|
Oh Sung-Jin
Noh Jae-Hyeon
Moon Byeong-Yeon
Yu Dong-Sik
Kim Sang-Yeob
Cho Hyun-Gug
|
|
|
Abstract
|
|
|
Purpose: To analyze the relationship between changes of refractive errors and accommodative functions after nearwork.
Methods: Seventy-four eyes of 37 subjects with more than 0.9 of corrected visual acuity (22 men and 15 women with 23.68±1.42 years old) were examined. All subjects watched a same video on a smartphone display at the distance of 30 cm for 1 hour. Measurements for refractive errors, amplitude of accommodation (AA), positive relative accommodation (PRA), negative relative accommodation (NRA), and binocular accommodative facility (BAF) were performed both before and after watching the video. The t-test between the before and after values and the correlation coefficients between changes of refractive errors and accommodative functions were analyzed.
Results: After watching the video, refractive errors leaned to the myopic changes (p<0.001) as ?0.52±0.32 D compared to before watching the video. The change amount was the largest in the low myopia group (
Conclusions: In clinical refraction, to check the myopic changes caused by nearwork activity, measurement of AA is the most notable test related to accommodation.
|
|
|
KEYWORD
|
|
|
Nearwork, Myopic changes, Amplitude of accommodation, Smartphone video
|
|
|
FullTexts / Linksout information
|
|
|
|
|
|
Listed journal information
|
|
|