Cited 6 times in

The analysis of AC/A ratio in nonrefractive accommodative esotropia treated with bifocal glasses

Authors
 Wook Kyum Kim  ;  Sung Yong Kang  ;  Soolienah Rhiu  ;  Seung Ah Chung  ;  Jong Bok Lee 
Citation
 Korean Journal of Ophthalmology, Vol.26(1) : 39-44, 2012 
Journal Title
Korean Journal of Ophthalmology
ISSN
 1011-8942 
Issue Date
2012
MeSH
Accommodation, Ocular/physiology* ; Adolescent ; Child ; Cyclopentolate/administration & dosage ; Esotropia/physiopathology* ; Esotropia/therapy* ; Eyeglasses* ; Female ; Humans ; Male ; Phenylephrine/administration & dosage ; Retrospective Studies ; Statistics, Nonparametric ; Tropicamide/administration & dosage
Keywords
Accommodation ; Convergence ; Esotropia
Abstract
PURPOSE: To report the long term results of bifocal treatment in nonrefractive accommodative esotropia and to analyze the changes of accommodative convergence to accommodation (AC/A) ratio.

METHODS: Sixteen patients treated with bifocal glasses for at least 5 years were evaluated retrospectively. Angle of deviation at near and distance, refractive error, and AC/A ratio by the lens gradient method were analyzed. The changes of AC/A ratios were also compared after dividing the patients according to continuation or cessation of bifocal therapy.

RESULTS: Six patients (38%; bifocal stop group, BSG) were able to stop using bifocal glasses at an average age of 10.8 years (range, 6.5 to 15.4 years) during their follow-up. However, the other ten patients (62%; bifocal continue group, BCG) had to continue using bifocal glasses until the final visit, which was 13.8 years on average (range, 11.3 to 18.5 years). The AC/A ratio decreased from time of bifocal prescription to the last visit in both groups, from 4.4 to 2.7 in the BSG and from 5.9 to 4.5 in the BCG. AC/A ratios were significantly higher (p = 0.03) in the BCG than that of the BSG from the beginning of bifocal treatment and this difference was persistent until the final visit (p = 0.03).

CONCLUSIONS: The AC/A ratio decreased with age in both groups but was significantly higher throughout the entire follow-up period in the BCG. AC/A ratio at bifocal prescription could be an important factor in predicting response to bifocal treatment.
Files in This Item:
T201200475.pdf Download
DOI
10.3341/kjo.2012.26.1.39
Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Ophthalmology (안과학교실) > 1. Journal Papers
Yonsei Authors
Kim, Wook Kyum(김욱겸)
Rhiu, Soolienah(유수리나)
Lee, Jong Bok(이종복)
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/91298
사서에게 알리기
  feedback

qrcode

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

Browse

Links