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Topographic changes with femtosecond laser in cataract surgery: a case report

Poster Details

First Author: S.Carbonell SPAIN

Co Author(s):    J. Rodriguez-Prats   I. Signes-Soler   P. Tañá-Rivero        

Abstract Details


Femtosecond laser assisted cataract surgery offers a reproducible, non-invasive technique to replace the least predictable and most technically demanding steps of conventional cataract procedures. The purpose is to describe the changes on corneal curvatures with femtosecond laser in cataract surgery in a young patient.




A 55 years old man with a moderate nuclear cataract in his left eye, with best spectacle corrected visual acuity (BSCVA) of 0.9 decimal (20/25) with -0.75 sphere. Corneal curvature was 41.74 x 18ẃ x 42.49 x 108ẃ. The intraocular pressure was 20 mm Hg (Tonometer Topcon CT-80). It was implanted with a TriFocal intraocular lens (AT.Lisa 839 MP 18.5 D) using a 10 mm zonular distension ring. Anterior capsulotomy and phacofragmentation procedures were performed with an intraocular femtosecond laser (Catalys-OptiMedica-). Phacoemulsification with micro incision cataract surgery (MICS) was performed. The laser parameters were as follow: It was performed a sextant fragmentation of 5.0 mm diameter. The main incision was at 55ẃ, with a limbus offset of 0.6 mm, a width of 1.8 mm and a length of 0.8 mm The paracentesis incision was at 140ẃ, with a limbus offset of 0.6 mm, a width of 0.9 mm and a length of 0.8 mm. The incision depth was 600 microns, the segmentation soft spacing 200 microns, the Grid spacing 350 microns, the anterior capsulotomy safety 500 microns and the posterior capsulotomy safety was 700 microns.


Two month after surgery, the visual acuity was 1 (20/20), without correction. Corneal curvature was 41.87 x 111ẃ x 41.17 x 21ẃ The intraocular pressure was14 mm Hg (Tonometer Topcon CT-80). Not other relevant findings were report.


Cataract surgery with femtosecond laser was a safe procedure with minimal changes on corneal topography for this patient.

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