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Early clinical outcomes of a new low energy femtosecond guided lenticule extraction in mild to moderate miopia

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First Author: L.Izquierdo PERU

Co Author(s):    O. Ben-Shaul   M. A Henriquez                 

Abstract Details

Purpose:

To report the early outcomes of a new guided lenticule extraction technique using a low energy femtosecond laser in eyes with mild to moderate myopia and astigmatism

Setting:

Prospective, cases series study. Took place at Oftalmosalud Instituto de Ojos, Peru between January to July 2019

Methods:

21 eyes of 21 patients with myopia and astigmatism where scheduled for guided lenticule extraction using the FEMTO-LDV Z8 laser (Ziemer). Inclusion criteria were manifest spherical correction between -1.75 and -4 Diopters (D) and astigmatism between 0.25 D and 1.75 D, best corrected visual acuity of at least 20/20. In all cases an intrastromal lenticule and two tunnel incisions at the extreme of the lenticule were created and the lenticule was extracted by micro-forceps. Pre and postoperative at 1-week and 1-month subjective Spherical equivalent, refraction, uncorrected and best corrected visual acuity were measured. Intra and postoperative complication were recorded.

Results:

Mean spherical equivalent refraction was -3.25±0.9 (D) before surgery, and -0.69±0.6 at 1 months after surgery (p = 0.05). Mean pre-operative UCVA was 0.99±0.28 (Log mar) and post-operative 0.19±0.17; 90.4% (19/21) of eyes achieved 20/40 or better. BCDVA a month after remained unchanged (20/20) in 95.2% of the eyes and improved to 20/15 in 1 eye. No intra-and postoperative complications were observed in any of the cases.`

Conclusions:

Early data from this new technique suggests low femtosecond laser for guided lenticule extraction provides good outcomes in terms of refractive predictability and visual acuity in eyes with mild to moderate myopia, indicating its feasibility as a surgical option for the treatment of these eyes.

Financial Disclosure:

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