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Title: Effect of femtosecond laser-assisted lens surgery on the optic nerve head and the macula
Authors: Reñones De Abajo, Josefina
Jorge, Beatriz Estévez
González Martín, Jesús María
Díaz, Humberto Carreras
Loro Ferrer, Juan Francisco 
López, Alfonso Antón
UNESCO Clasification: 320109 Oftalmología
Keywords: Femtosecond Laser-Assisted Cataract Surgery
Optic Nerve Head
Optical Coherence Tomography
Refractive Lens Exchange
Issue Date: 2019
Journal: International Journal of Ophthalmology 
Abstract: AIM: To evaluate the effect of femtosecond laser-assisted lens surgery (FLALS; cataract surgery or refractive lens exchange) on the structure of the optic nerve head and the macula. METHODS: This prospective longitudinal study included healthy eyes undergoing FLALS. Eyes with glaucoma or any other ocular disease that could alter optical coherence tomography results were excluded. Retinal nerve fiber layer (RNFL), Bruch’s membrane opening-minimum rim width (BMO-MRW) and macular thickness (MT) were measured preoperatively, 1 and 6mo after surgery using spectral-domain optical coherence tomography (SD-OCT). Changes between preoperative and postoperative values were evaluated. RESULTS: A total of 87 eyes of 46 patients were included in this study. Preoperative RNFL, BMO-MRW and MT in microns (μm) were 100.77±10.39, 330.31±49.99 and 276.30±33.39, respectively. Postoperative RNFL, BMO-MRW and MT were 104.74±11.55, 348.32±54.05 and 279.83±22.65 1mo after surgery and 102.93±11.17, 343.11±53.4 and 278.90±22.19 6mo after surgery, respectively; which equals an increase of 3.93%, 5.45% and 1.27%, respectively, 1mo after surgery, and 2.14%, 3.87% and 0.94% 6mo after surgery. The differences between the preoperative and the postoperative RNFL and BMO-MRW values were statistically significant (P<0.001). Regarding MT values, there were not statistically significant differences (P=0.26). CONCLUSION: Our study suggests that FLALS does not have a negative impact on the structural status of the optic nerve head in healthy eyes, assessed by SD-OCT. There is a slight increase in the values of RNFL, BMO-MRW and MT 1mo and 6mo after surgery.
ISSN: 2222-3959
DOI: 10.18240/ijo.2019.06.13
Source: International Journal of Ophthalmology [ISSN 2222-3959], v. 12 (6), p. 961-966
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