Corneal Topographic Map Changes After Small Incision Cataract Extraction Through Broken Nuclear Technique With Different Incision

Objectiveto study corneal topographic map changes in patients after cataract extraction with different incision.Methodto observe all patients treated with small incision cataract extraction through broken nuclear technique and intraocular lens implantation from October2009to dec2009in our hospital.According to the incision shape patients were divided into two groups:straight-line group (length is6.0mm)43patients, and43patients (43eyes) with cataract were divided into three groups according to incisions with different distance from limbus:Group A1(the distance is1.5mm from incision to limbus), Group B1(the distance is2.0mm from incision to limbus), Group C1(the distance is2.5mm from incision to limbus);anti-superciliary arch-shaped group (chord length is6.0mm)41patients, and41patients (41eyes) with cataract were divided into three groups according to incisions with different distance from limbus:Group A2(the distance is1.5mm from incision to limbus), Group B2(the distance is2.0mm from incision to limbus), Group C2(the distance is2.5mm from incision to limbus). All patients were examined by corneal topography and specular microscopy preoperatively, one week, one month and three months postoperatively.Resultsthe corneal incision away from depending on department, the smaller the cornea after scattered spectrophotometry, the eyebrow bow is linear incision in the form of early postoperative incision corneal surface rules better properties.ConclusionFrom the limbus from2.0mm anti-superciliary arch-shaped incision is more suitable for clinical.