Ocular wavefront aberrations in patients after diffuse lamellar keratitis

Ocular wavefront aberrations in patients after diffuse lamellar keratitis

Author Beer, Sandra Maria Canelas Google Scholar
Campos, Mauro Google Scholar
Lopes, Paraguassu Tibirica Google Scholar
Andre, Jose Armando Google Scholar
Schor, Paulo Google Scholar
Institution Universidade Federal de São Paulo (UNIFESP)
Abstract Purpose: To study ocular wavefront aberrations after laser in situ keratomileusis (LASIK) in patients who developed diffuse lamellar keratitis (DLK).Methods: A case-control evaluation of 47 patients with DLK and 30 uneventful LASIK-operated controls. Measurements of visual acuities, cycloplegic refraction, eye's wave aberrations using a LADARWAVE aberrometer (up to eighth order), and corneal topography were obtained after LASIK treatment. All of the surgeries were performed using the Hansatome or the Moria microkeratome and the LadarVision excimer laser system.Results: Mean follow-up interval from the day of the operative procedure to the examination day was 6.26 (DLK group; range, 2-13 months) and 6.23 months (control group; range, 3-9 months). Mean preoperative spherical equivalent was -3.7 D in patients with DLK and -3.7 D in controls. High-order aberration S7+7 (P = 0.015) was statistically different in the DLK group from that in controls. High-order aberrations S3+3 (P = 0.091) and S8+4 (chi(2) = 8.014, P = 0.046) showed a tendency to be different from controls. Loss of best-corrected visual acuity was greater in patients with DLK.Conclusions: the occurrence of DLK after LASIK surgery may not significantly affect the visual outcome.
Keywords keratitis
LASIK
ocular aberration
wavefront
complications
DLK
Language English
Date 2007-01-01
Published in Cornea. Philadelphia: Lippincott Williams & Wilkins, v. 26, n. 1, p. 6-8, 2007.
ISSN 0277-3740 (Sherpa/Romeo, impact factor)
Publisher Lippincott Williams & Wilkins
Extent 6-8
Origin http://dx.doi.org/10.1097/ICO.0b013e31802be52e
Access rights Closed access
Type Article
Web of Science ID WOS:000243249700002
URI http://repositorio.unifesp.br/handle/11600/29420

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