Possible risk factors and clinical effects of an opaque bubble layer created with femtosecond laser-assisted laser in situ keratomileusis.

摘要: Purpose To report the risk factors and clinical effects of an opaque bubble layer (OBL) during creation a laser in situ keratomileusis (LASIK) flap with Visumax 500 kHz femtosecond laser. Setting HanGil Eye Hospital, Incheon, South Korea. Design Retrospective comparative study. Methods Visual acuity, manifest refraction, intraocular pressure, corneal curvature, thickness, optical quality were evaluated. prove previous hypothesis that harder surgeon applanates (hard-docking technique), higher incidence OBL, area meniscus on cornea to which pressure was applied by patient interface calculated. Eyes separated into 2 groups; is, OBL-occurrence group OBL-free group. Clinical outcomes groups compared measure OBL. Results The study included 827 myopic eyes. OBL 5.0% (41 eyes). mean flat keratometry steeper preoperative thicker had applanation (ie, larger meniscus) than hard-docking technique. outcomes, including refractive error, visual quality, not statistically significantly different 1 month after LASIK. Conclusions 5.0%. A steep, thick technique could be for did appear affect or outcomes. Financial Disclosure No author has financial proprietary interest any material method mentioned.