The Clinical Interpretation of Teller Acuity Card Test in the Diagnosis of Amblyopia.
- Author:
Hae Jung PAIK
1
;
Min Kyung SHIN
Author Information
1. Department of Ophthalmology, Gachon Medical school, Ghil Medical Center, Inchon, Korea.
- Publication Type:Original Article
- Keywords:
Amblyopia;
Anisometropia;
Optotype acuity;
Strabismus;
Teller Acuity Card(TAC) test
- MeSH:
Amblyopia*;
Anisometropia;
Diagnosis*;
Sensitivity and Specificity;
Strabismus;
Visual Acuity
- From:Journal of the Korean Ophthalmological Society
2001;42(7):1030-1036
- CountryRepublic of Korea
- Language:Korean
-
Abstract:
PURPOSE: To evaluate the clinical interpretation and application of Teller Acuity Card(TAC) test compared with optotype acuity chart in the diagnosis of amblyopia. METHODS: The visual acuities of 112 children(54 normal, 58 amblyopes), whose mean age was 6.5 years(3~11 years) were measured with Han's letter chart and TAC. The sensitivity, specificity, false-positive and false-negative rates of TAC Test were analyzed according to the visual acuity, age and type of amblyopia. RESULTS: TAC acuity was higher than optotype acuity in both strabismic and anisometropic amblyopia group, however, the anisometropic amblyopia group showed higher correlation between two tests(P<0.01,r=0.0755). The sensitivity and specificity of TAC test increased in lower visual acuity group, which means that TAC test is useful in detecting amblyopia. While the false-positive rate increased in higher visual acuity group, false-negative rate increased in lower visual acuity group and in the group less than 6 years of age. And the bilateral visual acuity were underestimated than unilateral visual acuity in about 30%. CONCLUSIONS: Though TAC test is a useful method in detecting amblyopia of infancy and childhood, an appropriate clinical diagnosis should be accompanied for the accurate diagnosis of amblyopia.
