[Changes in refraction after cataract extraction and IOL implantation].
The refraction changes were followed up in 61 eyes 1 week to 3 years after extracapsular cataract extraction and posterior chamber IOL implantation. The variation in spherical power during follow-up was not significant, while the changes in astigmatism were very significant at end of the first week, when the mean value of cylinder power was 4.21 D and the axis in 82% of the eyes was with-the-rule. After 3 months, the astigmatism became reduced and relatively stable, when the mean power was 1.90 D and the axis in 65.6% of the eyes against-the-rule. The astigmatism continued to change afterwards, especially in the position of axis.
Yan
G
G
Department of Ophthalmology, Beijing Hospital.
Zhang
Y Z
YZ
D000368:Aged; D000369:Aged, 80 and over; D001251:Astigmatism / Q000209:etiology*; D002387:Cataract Extraction; D005260:Female; D006801:Humans; D007910:Lenses, Intraocular / Q000009:adverse effects*; D008297:Male; D008875:Middle Aged; D012029:Refraction, Ocular