KMID : 1159320230250040331
|
|
Korean Journal of Vision Science 2023 Volume.25 No. 4 p.331 ~ p.337
|
|
The Impact of Higher-order Aberrations on Contrast Visual Acuity in Young Adults
|
|
Jang Hyo-Seung
Song Yun-Young Jung Mi-A
|
|
Abstract
|
|
|
Purpose : The objective of this study was to investigate the influence of higher-order aberrations on contrast visual acuity among young adults.
Methods : A total of 29 young adults in their 20s were recruited for this study. Contrast visual acuity and higher-order aberrations were measured. Based on the results of contrast visual acuity, a comparison was made between the higher-order aberrations at 100% and 10% contrast levels.
Results : The average refractive error correction among the participants was ?3.21¡¾1.57 D.
The measured values for higher-order aberrations, including defocus, oblique trefoil, vertical coma, horizontal coma, horizontal trefoil, oblique quadrafoil, spherical aberration, and horizontal quadrafoil were ?0.326¡¾0.730, -0.026¡¾0.038, 0.042¡¾0047, 0.023¡¾0.048, 0.003¡¾0.038, 0.000¡¾0.022, 0.073¡¾0.027, and 0008¡¾0020 ¥ìm. The average high-contrast visual acuity and low-contrast visual acuity among the participants were 1.114¡¾0.304 and 0.686¡¾0.239 logMAR respectively. The analysis of the relationship between higher-order aberrations and contrast visual acuity revealed no significant correlation at high contrast (100%). However, at low contrast (10%), significant correlations were found between oblique trefoil and spherical aberration (p=0.009, p=0.039).
Conclusion : Higher-order aberrations have an impact on contrast visual acuity in young adults. Correcting these higher-order aberrations may improve visual quality.
|
|
KEYWORD
|
|
High-contrast visual acuity, High-order aberration, Low-contrast visual acuity
|
|
FullTexts / Linksout information
|
|
|
|
Listed journal information
|
|
|
|