COMPARISON OF CYCLOPLEGIC AND NONCYCLOPLEGIC RETINOSCOPY IN CHINESE PRESCHOOL-CHILDREN
COMPARISON OF CYCLOPLEGIC AND NONCYCLOPLEGIC RETINOSCOPY IN CHINESE PRESCHOOL-CHILDREN
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DOI：
10.1097/00006324-199405000-00002
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发表时间：
1994-05-01
影响因子：
1.4
通讯作者：
EDWARDS, M
中科院分区：
文献类型：
--
作者：
CHAN, OYC;EDWARDS, M
27名3 ~ 5 1/2岁的中国香港儿童被纳入本研究，以评价1%环喷托酯睫状肌麻痹前后视网膜镜下测量的屈光不正之间的关系。这些儿童的非睫状肌麻痹球镜屈光不正介乎-0.75至+2.50 D之间，约98%的香港学前儿童的明显球镜屈光不正在此范围内。睫状肌麻痹屈光不正可以通过将明显误差的球镜分量乘以1.45并将+0.39 D添加到乘积来近似，同时保持屈光力和轴不变。环喷托酯1%需要更多的时间来产生散瞳和睫状肌麻痹的眼睛严重色素虹膜;然而，其最终影响屈光不正显然是独立的虹膜色素沉着，并取决于球镜屈光不正的数量。
Twenty-seven Hong Kong Chinese children, aged 3 to 5 1/2 years, were recruited in this study to evaluate the relation between refractive error as measured retinoscopically before and after cycloplegia using cyclopentolate 1 %. The noncycloplegic spherical refractive error of these children ranged from -0.75 to +2.50 D and approximately 98% of the Hong Kong pre-school children have a manifest spherical error within this range. The cycloplegic refractive error can be approximated by multiplying the spherical component of the manifest error by 1.45 and adding +0.39 D to the product, while keeping the astigmatic power and axis unchanged. Cyclopentolate 1% requires more time to produce mydriasis and cycloplegia in eyes with heavily pigmented irides; however, its final effect on refractive error is apparently independent of iris pigmentation and depends on the amount of spherical refractive error present.