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MICS surgery in keratoconus: refractive, visual and keratometric outcomes

Poster Details

First Author: P.Peña-García SPAIN

Co Author(s):    J. Alio   A. Fidan   F. Soria        

Abstract Details


To investigate the visual and refractive outcomes, safety, efficacy and stability of cataract surgery in eyes with stable keratoconus


Vissum Corporación. Alicante (Spain)


Retrospective, consecutive and comparative series of cases. 17 eyes (10 patients) diagnosed of stable keratoconus, aged from 34 to 73 years (56.63ḟ12.47) underwent micro-incision cataract surgery (MICS) followed by implantation of toric intraocular lens (IOL). 7 of them were operated bilaterally and 3 unilaterally. A complete ophthalmologic examination was performed pre and postoperatively. The main outcome measures were: manifest refraction, uncorrected and corrected distance visual acuities (UDVA and CDVA). Follow up time was 4.10ḟ5.54 months (3 to 15).


Sphere changed from -1.77ḟ6.57 D (-11.00 to 7.00) preoperatively, to 0.08ḟ0.79 D (-1.25 to 1.75) postoperatively (P=0.211), cylinder changed from -2.95ḟ1.71 D (-7.00 to –0.75) to -1.40ḟ1.13 D (-3.25 to 0.00) (P=0.016). UDVA (logMAR) changed from 1.33ḟ0.95 (0.40 to 2.77) to 0.18ḟ0.32 (0.00 to 1.00) (P=0.008) and CDVA (logMAR) changed from 0.32ḟ0.45 (0.01 to 1.77) to 0.20ḟ0.36 (-0.03 to 1.30) (P=0.013). Efficacy and safety indexes were 1.38ḟ0.58 and 1.17ḟ0.66 respectively. Both refraction and corneal topography were stable during the follow up


Cataract surgery using corneal topography data and standard formulas for the calculation of the IOL power provides good refractive and visual outcomes in patients with stable keratoconus. IOL implantation through corneal incision from 1.8 to 2.2 mm was followed by good corneal topography stability

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