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- Title
Optical Scattering Measurements of Laser Induced Damage in the Intraocular Lens.
- Authors
Kruijt, Bastiaan; van den Berg, Thomas J. T. P.
- Abstract
This study optically determines whether the amount of light scatter due to laser-induced damage to the intraocular lens (IOL) is significant in relation to normal straylight values in the human eye. Two IOLs with laser-induced damage were extracted from two donor eyes. Each IOL had 15 pits and/or cracks. The surface area of each pit was measured using a microscope. For 6 pits per intraocular lens the point spread function (PSF) in terms of straylight was measured and the total straylight for all 15 pits was estimated. The damage in the IOLs was scored as mild/moderate. The total damaged surface areas, for a 3.5 mm pupil, in the two IOLs were 0.13% (0.0127 mm2) and 0.66% (0.064 mm2), respectively. The angular dependence of the straylight caused by the damage was similar to that of the normal PSF. The total average contribution to straylight was log(s) =20.82 and 20.42, much less than the straylight value of the normal eye. The straylight due to normal levels of laser induced damage of the IOL is much lower than normal straylight values found clinically for the normal eye and may therefore be considered not significant.
- Subjects
INTRAOCULAR lenses; LASERS; ORGAN donors; EYE; MICROSCOPES; APHAKIA
- Publication
PLoS ONE, 2012, Vol 7, Issue 2, p1
- ISSN
1932-6203
- Publication type
Article
- DOI
10.1371/journal.pone.0031764