The correlation between various types of intraocular lens and laser wavelength.

Abstract

PURPOSE:

To analyze effects of the composition and the color of intraocular lenses (IOLs) on laser wavelength.

DESIGN:

A case control study.

METHOD:

Laser light rays at wavelengths ranging from 0.1 to 0.5 W were directed at a polymethymethacrylate ocular model fitted consecutively with three types of IOLs at various refractive powers. A laser detector was placed on the model beneath the lenses. The laser beam was passed through the IOLs and the output measured by a sensor. Attenuation rate was calculated.

RESULTS:

The colored IOL caused significantly more attenuation than did the noncolored IOLs (p <.01). A 30-diopter colored IOL showed an attenuation rate of up to 15% at a wavelength of 488 + 514 nm.

CONCLUSIONS:

Consideration of the wavelength and the output of a laser for a particular IOL is required when laser photocoagulation of the retina is performed in patients with pseudophakia.

• Authors: Kenji Kawai, Kotaro Sakanishi
• Journal: American journal of ophthalmology (Am J Ophthalmol) Vol. 135 Issue 6 Pg. 902-3 (Jun 2003) ISSN: 0002-9394 [Print] United States
• PMID: 12788139 (Publication Type: Comparative Study, Journal Article)

Chemical References

• Polymethyl Methacrylate

Topics

• Color
• Laser Coagulation (methods)
• Lenses, Intraocular
• Models, Anatomic
• Polymethyl Methacrylate
• Pseudophakia (complications)
• Retinal Diseases (surgery)