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A comparative study of sclero-corneal tunnel cataract surgery and limbal incision extracapsular cataract surgery on postoperative astigmatism

Session Details

Session Title: Corneal Incisions and preloaded IOLs

Session Date/Time: Sunday 06/10/2013 | 08:00-09:30

Paper Time: 08:34

Venue: Elicium 2 (First Floor)

First Author: : A.Traina LIBYA

Co Author(s): :                  

Abstract Details


To see which better out come for hard cataract which is dificult in Phaco emulsification


Oral presentation


The study included 50 patients underwent cataract surgery with posterior chanber I.O.L.,all cases had hard cataract. The preoprative visual acuity ranged between L.P. and Hand Movment,and all cases preoperative astigmatism were less than 2 D. The Intra ocular lenses were inserted are 5.0 mm optic daimeter ,one piece PMMA lenses.The 50 patients devided into 2 groups.Group A ,25 cases who underwent sutureless manual small incision cataract surgery through 6mm straight sclero-corneal tunnel. And groupe B,25 patients underwent extra capsular cataract surgery throught 12 mm limbal incision and closed by interupted stitches 100 silk.which removed after 3months post operative The uncorrected and best corrected visual acuity were measured as well as refracto-keratometery were performedat each examination time,in 1 week,1 month.2 month.6 month.


The induced Astigmatism in group A it was 1.95 D at 1 week,1.68 D at 1 month, 1,6 D at 2 month and 1.2 D at 6 month. While in Groupe B it was 3.9 D in 1 week and 3.5 D at 1 month ,3.0 D at 2 months and 1.9 D at 6 months. and patient whom gaind visual acuity 66 was 50% in group A while in group B only 10% are gained viasual acuity 66


Surgically induced astigmatism is significantly hiher in limbal incision cataract surger than sclero-corneal tunnel cataract surgery.Our study showed the safty and better vision out come in small incision cataract surgery using sclero-corneal tunnel incision.

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