Farvardin Hajar, Maalhagh Mehrnoosh, Farvardin Majid
Poostchi Ophthalmology Research Center, Shiraz University of Medical Sciences, Shiraz, Iran.
Poostchi Ophthalmology Research Center, Shiraz University of Medical Sciences, Shiraz, Iran; Department of Ophthalmology, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran.
J AAPOS. 2019 Apr;23(2):113-115. doi: 10.1016/j.jaapos.2018.10.006. Epub 2018 Nov 17.
In monozygotic twins two embryos are formed from a single fertilized egg. In "mirror image twins" identical siblings have reverse asymmetric features in the right and left sides of the body. We report the case of twins with mirror-image hypermetropic anisometropia. They were referred to an ophthalmologist at the age of 3.5 years for amblyopia. Cycloplegic refraction of twin 1 was +1.00 in the right eye and +4.50 -0.75 ×180 in the left eye; of twin 2, +4.75 -1.00 ×180 and +1.25. Keratometry and axial length were measured with Lenstar LS 900 when the twins were 6 years of age. In twin 1, the axial length was 22.18 mm in the right eye and 20.97 in the left eye; in twin 2, 20.94 mm and 22.13. Keratomtry of both eyes of these twins was relatively equal.
在单卵双胞胎中，两个胚胎由单个受精卵发育而成。在“镜像双胞胎”中，同卵兄弟姐妹身体的左右两侧具有相反的不对称特征。我们报告了一对患有镜像远视性屈光参差的双胞胎病例。他们3.5岁时因弱视被转诊至眼科医生处。双胞胎1的睫状肌麻痹验光结果为右眼+1.00，左眼+4.50 -0.75×180；双胞胎2的结果为+4.75 -1.00×180和+1.25。双胞胎6岁时用Lenstar LS 900测量了角膜曲率和眼轴长度。双胞胎1右眼的眼轴长度为22.18mm，左眼为20.97mm；双胞胎2右眼为20.94mm，左眼为22.13mm。这对双胞胎双眼的角膜曲率相对相等。
