영?유아에서 텔러시력검사의 임상적 유용성

• 영문명: The Clinical Usefulness of the Teller Acuity Cards Test in Preverbal Children
• 발행기관: 대한안과학회
• 저자명: 정미란 최동규,Mi Ran Chung, M.D., Dong Gyu Choi, M.D.
• 간행물 정보: 『대한안과학회지』Ophthalmological Society,volume46,number2, 330~335쪽, 전체 6쪽
• 주제분류: 의약학 > 기타의약학
• 파일형태: PDF
• 발행일자: 2005.02.28

영문 초록

Purpose: To determine the clinical usefulness of the Teller Acuity Cards(TAC) test in infants and preverbal children less than 48 months old. Methods: We retrospectively analyzed 55 consecutive patients. We had measured visual acuity with the TAC test for the preverbal period, and optotype acuity was measured with Hahn`s letter chart for the follow-up period. Test-retest long-term repeatability was evaluated by comparing the last two TAC acuities. We compared the last TAC acuity with the first optotype acuity to estimate the predictive validity of the TAC test. Finally, we also tested the reliability of the TAC test compared with the optotype acuity test for the assessment of interocular visual acuity differences in patients with unilateral amblyopia. Results: The mean age of patients at the initial TAC test was 21.6 months. The first optotype acuity was obtained at the age of 37 months. Earlier TAC acuity correlated significantly with later TAC acuity (r=0.77, p<0.001). Although the TAC test underestimated the visual acuity more than the optotype test, there was minimal correlation between the two tests (r=0.28, p<0.05). In the presence of the interocular difference of visual acuity with the TAC test, unilateral amblyopia as assessed by optotype test could be anticipated (r=0.44, p<0.05). Conclusions: The TAC test can be used as a reliable method to estimate visual acuity in infants and preverbal children. Earlier The TAC acuities are valid predictors of optotype acuities later in childhood. The TAC test is an especially useful method in detecting unilateral amblyopia.

키워드

Hahn`s letter chart, Optotype test, Predictive validity, Test-retest reliability, Teller acuity cards (TAC) test