The BioMask for treatment of corneal surface irregularities with excimer laser phototherapeutic keratectomy.

Abstract:

PURPOSE:To assess the characteristics of BioMask as a potential masking agent for use with the excimer laser. METHOD:We addressed ablation rate, smoothness, ease of use, dioptric shift, treatment of standardized irregular topography, and ability of BioMask to induce dioptric change in vivo. RESULTS:BioMask ablates at a rate of 0.28 microm per pulse. The BioMask conforms to the base curve of a contact lens in the excimer blank, eye bank eye, and rabbit eye with a r2 of 0.9982, 0.9844, 0.9858, respectively. We are readily able to create 20 diopters of flattening or steepening (r2 = 0.9944). Standardized irregular topography generation in the rabbit eye and then removal with BioMask was successful. The central corneal topography of the rabbit cornea showed predictable changes with various contact lens base curves with the BioMask (r2 = 0.875). CONCLUSIONS:BioMask has excellent potential as an ablatable mask material in the treatment of superficial corneal scars.

journal_name

Cornea

journal_title

Cornea

authors

Stevens SX,Bowyer BL,Sanchez-Thorin JC,Rocha G,Young DA,Rowsey JJ

doi

10.1097/00003226-199903000-00003

subject

Has Abstract

pub_date

1999-03-01 00:00:00

pages

155-63

issue

2

eissn

0277-3740

issn

1536-4798

pii

00003226-199903000-00003

journal_volume

18

pub_type

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