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Two cases of mirror-image eye anomalies in monozygotic twins

Authors
 Wook Kyum Kim  ;  Seung Ah Chung  ;  Jong Bok Lee 
Citation
 Korean Journal of Ophthalmology, Vol.24(5) : 314-317, 2010 
Journal Title
 Korean Journal of Ophthalmology 
ISSN
 1011-8942 
Issue Date
2010
MeSH
Child ; Eye Abnormalities/diagnosis* ; Eye Abnormalities/genetics ; Eye Abnormalities/surgery ; Eyeglasses ; Female ; Humans ; Male ; Twins, Monozygotic ; Visual Acuity
Keywords
Anisometropia ; Identical twins ; Infantile nystagmus ; Intermittent exotropia ; Mirror image anomaly
Abstract
We report two cases of mirror image anomalies in two different pairs of monozygotic twins. In case 1, the twins exhibited mirroring of strabismus and refractive errors. Twin 1 had 35 prism diopters (PD) right intermittent exotropia at distant fixation and myopic anisometropia that was spherical 2.00 diopters more myopic in the right eye. Twin 2 had 35 PD left intermittent exotropia at distant fixation and her left eye was more myopic by - spherical 1.00 diopters. In case 2, the twins were diagnosed with infantile nystagmus with upbeat jerk. Twin 1 exhibited a habitual head turn of 30° to the left with dampening of her nystagmus in dextroversion. Twin 2 also exhibited abnormal head position, but in his case the habitual turn was 30° to the right. We believe that this is the first report describing mirror imaged intermittent exotropia with anisometropia and infantile nystagmus with opposite abnormal head positions in pairs of monozygotic twins.
Files in This Item:
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DOI
10.3341/kjo.2010.24.5.314
Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Ophthalmology (안과학교실) > 1. Journal Papers
Yonsei Authors
Lee, Jong Bok(이종복)
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/158107
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