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Luigi Mosca, Alessandra Balestrazzi, Luca Iacobelli, Luca Mosca, Laura Guccione, Emanuela Filomena Legrottaglie, Monica Riso, Emilio Balestrazzi; Femtosecond Laser-assisted Lasik To Correct Medium To High Hyperopic Defects. Invest. Ophthalmol. Vis. Sci. 2012;53(14):1488.
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© ARVO (1962-2015); The Authors (2016-present)
To evaluate efficacy and safeness of femtosecond laser assisted LASIK to correct congenital hyperopic defects.
from May 2007 to April 2011, 116 eyes of 67 patients (divided in three groups: A, B, C) were submitted to femtosecond assisted LASIK. In the group A (86 eyes of 49 patients, 29M, 20F; mean age: 40.24yrs ±9.21SD) the operation was carried on with a 60kHz femtosecond laser and the ablation was carried on dry stroma with a Technolas 217c excimer laser for a mean refractive error in SE of +3.34D ±1.24SD (range: +0.75 / +7.25), mean cylinder of +1.60 ±1.48SD (range: +0.50 / + 5), mean UCVA of 0.58 ±0.21SD and mean BSCVA of 0.98 ±0.06SD; the mean laser refractive treatment in SE was of +3.02D ±1.24SD. In the group B (17 eyes of 10 patients, 5M, 5F, mean age: 26.76yrs ±8.79SD), the operation was carried on with a 150kHz femtosecond laser and with a VISX S4 excimer laser, for a mean refractive error in SE of +3,69D ±1.16SD (range: +2 / +6), mean cylinder of +1.85D ±1.18SD (range: +0.50 / +4), mean UCVA of 0.12 ±0.08SD and mean BSCVA of 0.95 ±0.07SD; the mean refractive laser treatment in SE was of +3.54D ±1.13SD. In the group C (13 eyes of 8 patients) with a mean pupil diameter of 7.97mm ±0.23SD and a mean refractive error in SE of 3.38D ± 1.16SD, an iLASIK with a 150kHz femtosecond laser and a wavefront customized (WaveScan) excimer laser ablation with a VISX 4S excimer laser was performed for a mean ablation in SE of 2.70D ±1.13SD, a mean astigmatism of 1.25D ±1.18SD and a mean UCVA of 0,42 ±0.18SD.
In group A, after a mean follow-up of 32.36 mos ±10.12SD (max.48 months), the mean UCVA was 0.96±0.18SD and the mean BSCVA of 0.98±0.11SD; in group B, after a mean follow-up of 13.42 mos ±8.64SD (max. 34 months), the mean UCVA was 0.98±0.21SD and the mean BSCVA was 0.99±0.12SD; in group C, the mean postoperative UCVA was 0.99±0.08SD.
femtosecond laser assisted hyperopic LASIK is a safe and effective refractive technique. The 150kHz femtosecond laser reduce the procedure times, with better patient compliance. The customized wavefront ablation allows to correct medium to high hyperopic defects even with pupil diameter greater than 7mm with excellent refractive results.
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