Abstract：
PURPOSE:To assess the incidence, risk factors, and impact on visual outcomes of an opaque bubble layer (OBL) produced by an Intralase femtosecond laser (60 kHz) during laser in situ keratomileusis (LASIK). SETTING:Laser Vision Center, Chang Gung Memorial Hospital, Keelung, Taiwan. DESIGN:Case series. METHODS:Patients had femtosecond laser-assisted LASIK surgery. The surgical procedures were videotaped, and the patterns and sizes of the OBLs noted during the operations were analyzed. Preoperative and postoperative data included patient demographics, visual acuity, contrast sensitivity, refractive status, keratometry, and intraoperative data (eg, flap size, flap thickness, and docking times). RESULTS:The study analyzed 23 patients (40 eyes). Twenty-one eyes (52.5%) developed an OBL, 40.0% with a hard pattern and 12.5% with a soft pattern. The hard OBLs covered a mean area of 28.6% ± 10.1% (SD) and the soft OBLs, of 7.4% ± 5.6% (P = .002). The preoperative central cornea was significantly thicker in eyes that developed an OBL (P = .045). The visual outcomes 1 month postoperatively were comparable between the 2 groups except that eyes with an OBL had slightly decreased contrast sensitivity under scotopic conditions. CONCLUSIONS:Thicker corneas tended to develop an OBL during femtosecond laser-assisted LASIK surgery. An OBL did not affect postoperative visual acuity except for a mild decrease in scotopic contrast sensitivity.
journal_name
J Cataract Refract Surgjournal_title
Journal of cataract and refractive surgeryauthors
Liu CH,Sun CC,Hui-Kang Ma D,Chien-Chieh Huang J,Liu CF,Chen HF,Hsiao CHdoi
10.1016/j.jcrs.2013.08.055subject
Has Abstractpub_date
2014-03-01 00:00:00pages
435-40issue
3eissn
0886-3350issn
1873-4502pii
S0886-3350(13)01633-7journal_volume
40pub_type
杂志文章abstract：PURPOSE:To evaluate the influence of preoperative variables and early postoperative intraocular pressure (IOP) on the loss of corneal endothelial cells after phacoemulsification in eyes with occludable angles. SETTING:Taipei Veterans General Hospital, Taipei, Taiwan. METHODS:Sixty patients with occludable angles havi...
journal_title：Journal of cataract and refractive surgery
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journal_title：Journal of cataract and refractive surgery
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journal_title：Journal of cataract and refractive surgery
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journal_title：Journal of cataract and refractive surgery
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更新日期：2012-08-01 00:00:00
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journal_title：Journal of cataract and refractive surgery
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更新日期：2007-05-01 00:00:00
