Analysis of corneal esthesia in patients undergoing photorefractive keratectomy

To quantitatively analyze corneal esthesia in patients undergoing photorefractive keratectomy (PRK) surgery. Forty-five patients selected for PRK in one eye underwent corneal esthesia using a Cochet-Bonnet esthesiometer preoperatively and 30 and 90 days postoperatively. Patients with a refractive di...

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Bibliographic Details
Published in:Arquivos brasileiros de oftalmologia 2015-11, Vol.78 (6), p.363-366
Main Authors: Torres Neto, Elmar, Silva, Lucas Marcel Amaral, Lui, Giovana Arlene Fioravanti, Gomes, Rachel Lopes Rodrigues, Lui-Netto, Adamo
Format: Article
Language:English
Subjects:
Adult
Cornea - physiopathology
Cornea - surgery
Female
Humans
Intraoperative Period
Lasers, Excimer - adverse effects
Lasers, Excimer - therapeutic use
Male
Middle Aged
Mitomycin - therapeutic use
Nucleic Acid Synthesis Inhibitors - therapeutic use
OPHTHALMOLOGY
Photorefractive Keratectomy - adverse effects
Photorefractive Keratectomy - methods
Postoperative Period
Prospective Studies
Reference Values
Sensation Disorders - etiology
Time Factors
Treatment Outcome
Young Adult
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Summary:To quantitatively analyze corneal esthesia in patients undergoing photorefractive keratectomy (PRK) surgery. Forty-five patients selected for PRK in one eye underwent corneal esthesia using a Cochet-Bonnet esthesiometer preoperatively and 30 and 90 days postoperatively. Patients with a refractive diopter error of 4 or greater received intraoperative 0.02% mitomycin C for 20 s. Twenty-four (53.3%) of the 45 eyes received intraoperative 0.02% mitomycin. Decreased sensitivity was observed on postoperative day 30. By postoperative day 90, corneal esthesia had normalized but remained 14.9% lower than preoperative levels. In the mitomycin group, no recovery of corneal esthesia to normal sensitivity levels was observed. The mean esthesiometer level was 39.2 mm on postoperative day 90 (P
ISSN:0004-2749
1678-2925
1678-2925
DOI:10.5935/0004-2749.20150096