Portable prototype for ultraviolet analysis of donated corneas

Liliane Ventura; Victor A. C. Lincoln; Homero Schiabel; Sidney J. Faria e Sousa

doi:10.1117/12.874797

11 February 2011 Portable prototype for ultraviolet analysis of donated corneas

Liliane Ventura, Victor A. C. Lincoln, Homero Schiabel, Sidney J. Faria e Sousa

Proceedings Volume 7885, Ophthalmic Technologies XXI; 78851M (2011) https://doi.org/10.1117/12.874797
Event: SPIE BiOS, 2011, San Francisco, California, United States

Abstract

A prototype was built to provide means for clinical studies of alterations on the cornea UV natural protection from current procedures, such as the refractive surgery and corneal crosslinking. The prototype consists of an optical dual beam UVA/UVB system, for measuring the transmittance of the cornea at the 300nm - 400nm range. The system performs 500 measurements/s (±0.25% precision for the transmittance). It has been correlated to spectrophotometer (0.985) for donated human corneas. Preliminary studies on human corneas demonstrate that as the stromal layer is reduced, there is significant loss of the cornea natural UV protection.

Citation Download Citation

Liliane Ventura, Victor A. C. Lincoln, Homero Schiabel, and Sidney J. Faria e Sousa "Portable prototype for ultraviolet analysis of donated corneas", Proc. SPIE 7885, Ophthalmic Technologies XXI, 78851M (11 February 2011); https://doi.org/10.1117/12.874797

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