| Corneal light transmission and roughness after refractive surgery. | |
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MedLine Citation:
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PMID: 20453696 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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PURPOSE: To determine the relation between the corneal light transmission measurements and the epithelial surface properties in hen corneas after different refractive surgery techniques photorefractive keratectomy, laser in situ keratomileusis, and laser-assisted subepithelial keratomileusis, and a group with only epithelial corneal removal (deepithelialization). METHODS: Five groups of hen corneas with different treatments and a control group were analyzed at 30 days. Direct transmittance and corneal light scattering were measured by a scatterometer developed by our group. Quantitative and systematic measurements of external and internal roughness and epithelium thickness were assessed using standard techniques developed for quantitative analysis of microphotographs of the corneal epithelium. RESULTS: Data analysis revealed that the roughness in the epithelial surface was associated with the corneal light transmission. The direct transmittance of light showed a significant correlation with the epithelial roughness in the control (r = -0.99, p < 0.05) and photorefractive keratectomy (r = -0.99, p < 0.05) groups. However, there was no relation between the epithelial thickness and the corneal light transmission measurements. CONCLUSIONS: The experimental results suggested that the roughness of the epithelial surfaces is related to the light transmission in the cornea. |
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Authors:
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Pablo Pérez-Merino; M Carmen Martinez-Garcia; Santiago Mar-Sardaña; Alfonso Pérez-Escudero; Tomas Blanco-Mezquita; Agustin Mayo-Iscar; Jesus Merayo-Lloves |
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Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
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Title: Optometry and vision science : official publication of the American Academy of Optometry Volume: 87 ISSN: 1538-9235 ISO Abbreviation: Optom Vis Sci Publication Date: 2010 Jul |
Date Detail:
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Created Date: 2010-07-05 Completed Date: 2010-10-07 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 8904931 Medline TA: Optom Vis Sci Country: United States |
Other Details:
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Languages: eng Pagination: E469-74 Citation Subset: IM |
Affiliation:
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Instituto Universitario de Oftalmobiología Aplicada, Department of Cell Biology, Faculty of Medicine, University of Valladolid, Valladolid, Spain. p.perez@io.cfmac.csic.es |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Animals Chickens Cornea / pathology, physiopathology*, radiation effects, surgery* Epithelium, Corneal / surgery Female Keratectomy, Subepithelial, Laser-Assisted Keratomileusis, Laser In Situ Light* Photorefractive Keratectomy Postoperative Period Refractive Surgical Procedures* Scattering, Radiation |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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