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Outcomes of cataract surgery with implantation of Technis ZCT Toric intraocular lens (IOL) based on pre-operative automated keratometry

Poster Details

First Author: G.Mavropoulos UK

Co Author(s):    J. Van Der Hoek              

Abstract Details


To determine the visual and refractive outcomes of cataract surgery with implantation of Technis ZCT Toric intraocular lens where the pre-op astigmatism was assessed by automated keratometry.


Ophthalmic department of a district hospital in UK (Scarborough Hospital North Yorkshire United Kingdom) from 2011 to 2015.


Consecutive series of 86 eyes of 66 patients undergoing cataract surgery with mean corneal astigmatism of 2.55D (Diopters). Mean age on was 73.6 years (54 to 91), 31 (36%) males, 45 (52%) right eyes. IOL used was Technis ZCT Toric IOL. Pre-op astigmatism was evaluated by automatic keratometry (IOL Master) confirmed by handheld keratometry and post-op refraction by an independent optometrists or surgeon. Main outcome measures: post-op unaided acuity (UA) or best corrected visual acuity (BCVA) compared to pre-op BCVA, post-op spectacle refraction compared to pre-op keratometry.


Post-op UA or BCVA was available in all eyes (100%) and post-op refraction in 42 eyes (49%). Pre-op BCVA was 6/12 or less in 60 out of 86 eyes (59%). Post-op UA was 6/9 or better in 47 out of 59 eyes (81%), post-op BCVA was 6/9 or better in 32 out of 36 eyes (93%) and 6/12 or better in 36 eyes (100%). In some eyes only UA was available. Mean pre-op corneal astigmatism was 2.55D (range 1.26-4.88D) in 86 eyes (100%). Mean post-op refractive cylinder was 0.94D (range 0.00-3.00D) with 67% of eyes 1D or less .


Cataract extraction with Technis ZCT toric IOL implant is an effective way to reduce pre-existing corneal astigmatism resulting in a high degree of spectacle independence in patients with moderate pre-operative astigmatism. FINANCIAL DISCLOUSRE: NONE

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