Application of FemtoLASIK method for correction of residual refractive errors after cataract surgery

Session Details

Session Title: Laser Refractive Surgery (Lasers/LASIK/LASEK/Epi-LASIK)

First Author: M. Mirishova Azerbaijan

Co. Authors :    E. Qasimov                    

Abstract Details:



Purpose:

To evaluate the using of Femto-Lasik method for correction of residual refractive errors after cataract surgery.

Setting:

National Ophthalmology Center named after acad. Z.Aliyeva, Azerbaijan.

Methods:

Femto-Lasik method to correct residual refractive errors after cataract extraction was performed in 23 eyes(23 patients).The study included patients aged 29-52 years,14 of whom were male and 9 female.All operations were performed on excimer laser WaveLight-Allegretto EX500 and femtosecond laser Wavelight-Allegretto FS200.All preoperative calculations were performed on devices WaveLight Topolyzer and WaveLight Analyzer.The ablation zone in all patients was 6.5 mm.The residual thickness of the cornea after ablation was 350±6.3 microns.

Results:

In the pre-operative examination,the following data were obtained:visual acuity without correction 0.2±0.1;visual acuity with correction 0.7±0.2;The spherical equivalent of refraction varied from +2.75 to -4.5 D;the cylindrical component was in the range from -1.0 to -3.75 D;the pachymetry of the cornea varied within 544.2±18.7 μm;the kerotometric data in all patients were equal to K1 40.15±0.91 D,K2 42.42±0.73.1 month after the operation, the following data were observed:Uncorrected visual acuity 0.7±0.2;Postoperative mean spherical index -0.5±0.15;Cylindrical index 0,75 ± 0,25;The thickness of the corneal flap is 101.30±4.91 μm;The thickness of the residual stroma is 363±8.2 μm.

Conclusions:

Thus, Laser-Assisted in Situ Keratomileusis with Femto-Lasik technology proved to be the most accurate procedure for eliminating residual refraction after cataract extraction and IOL implantation. The obtained results demonstrated the safety, effectiveness and stability of this method. This technique is a predictable advanced technology in keratorefractive surgery and enables correction of residual ametropies after cataract surgery and IOL implantation. FINANCIAL DISCLOSURE: None