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First Author: I.Ilyinskaya RUSSIA
Co Author(s): S. Kopayev V. Kopayeva
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To assess the efficacy of corneal astigmatism correction via toric intraocular lens (IOL) implantation after laser cataract extraction.
Fyodorov Eye Microsurgery State Institution, Moscow, Russia.
9 patients (13 eyes) with corneal astigmatism 1.25 5 D were included in the study. All patients underwent laser cataract extraction (RAKOT VI Russia) employing Nd:YAG laser with unique wave length 1.44 ṁm and toric IOL implantation Acrysof IQ Toric (SN6AT2-T6). Patients were divided into 3 groups: group 1 included 5 eyes with high myopia and cataract density 3-4 (Burrato classification), group 2 included 4 vitrectomised eyes with cataract density 1-2 (these eyes required low vacuum lens aspiration), and group 3 included 4 eyes after radial keratotomy. Examinations were performed 1 month before surgery, 7 days after surgery and 1 month after surgery. Examinations included keratotopography, endothelial cell count and optical coherence tomography (OCT) Stratus.
7 days after surgery loss of endothelial cells in groups 1 and 2 was 2.1%, in group 3 5.2%. One month after surgery endothelial cells loss in groups 1 and 2 was 5.77%, in group 3 4.98%. According to OCT Stratus 7 days after surgery 1 patient in group 1 had macular edema, the edema resolved after conservative therapy. According to keratotopographyc investigations no induced astigmatism were mentioned.
Laser cataract extraction with toric IOL implantation is a safe and effective method for corneal astigmatism correction.