|
KMID : 1011420180230010031
|
|
Journal of Korean Ophthalmic Optics Society
2018 Volume.23 No. 1 p.31 ~ p.38
|
|
|
Comparative Interpretation of Clinical Data and Their Correlations in Binocular Tests
|
|
Yu Dong-Sik
Cho Hyun-Gug
Kim Sang-Yeob
Moon Byeong-Yeon
|
|
|
Abstract
|
|
|
Purpose: To compare and interpret normative values and correlations of clinical data in 20’s Korean using the same method as Morgan’s study.
Methods: Eighty three subjects (166 eyes, mean age 22.34±2.50 years) underwent refraction with a fogging method. Then phoria, gradient accommodative convergence to accommodation ratio (AC/A), accommodative amplitude, the near point of convergence, fusional vergence, relative accommodation, binocular accommodative and vergence facility test were performed. The normative data of each test were set at mean±0.5 standard deviation (SD) as the Morgan`s study. The mean, SD, normative values, and correlations between tests were compared with values established by Morgan.
Results: Compared to Morgan’s data, in these clinical data, there was no difference in ranks of means (Wilcoxon test, p = 0.274). Spearman’s correlations (ρ) between means, SDs, and distributions within SD were 0.945 (p<0.001), 0.907 (p<0.001), and 0.599 (p = 0.017), respectively. Major differences in our data compared to Morgan’s values are: 1) Means of phoria, fusional vergence (except blur and break point of the near negative fusional vergence), and gradient AC/A were higher; 2) range of the normative values were wider; 3) the distribution of subjects within normative values was lower; 4) the number of statistically significant Pearson’s correlations (r) between tests at near were fewer but higher.
Conclusions: These results indicate that the normative values in binocular tests differ from the Morgan’s values. Correlation analyses also show differences in interactions between each test. This might be due to subject’s criteria, specifically age or ethnicities. Therefore, it will be necessary to establish new normative values for diagnosis and management in binocular dysfunctions assessment for Korean at various age groups.
|
|
|
KEYWORD
|
|
|
Normative value, Clinical data, Binocular test, Morgan
|
|
|
FullTexts / Linksout information
|
|
|
|
|
|
Listed journal information
|
|
|
|