[Refractive regression after intraocular lens implantation].
Study of refractive changes after IOL implantation in 147 eyes revealed that astigmatism tended to increase, and the natural regressive course followed a negative exponential function, with the steep phase within 3 weeks for spherical, and 5 weeks for cylindrical errors. One (1) week after surgery, the axis of astigmatism was predominantly with the rule, and 2 months after operation, patients with preoperative WRA changed into various astigmatic axial directions, while 76.4% of the patients with preoperative ARA reverted to ARA. Those eyes in which the astigmatic axis was not horizontal 1 week after operation ended with stronger astigmatism in 2 months.
Ma
Z Z
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Department of Ophthalmology, PLA General Hospital, Beijing.
Momose
A
A
D001251:Astigmatism / Q000209:etiology*; D005123:Eye / Q000503:physiopathology; D006801:Humans; D007910:Lenses, Intraocular / Q000009:adverse effects*; D012029:Refraction, Ocular