Role of intraocular lens parameters in visual rehabilitation of patients after extracapsular cataract extraction

Valery V. Bakutkin; Vladimir A. Galanzha

doi:10.1117/12.413696

31 January 2001 Role of intraocular lens parameters in visual rehabilitation of patients after extracapsular cataract extraction

Valery V. Bakutkin, Vladimir A. Galanzha

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Proceedings Volume 4156, Clinical Lasers and Diagnostics; (2001) https://doi.org/10.1117/12.413696
Event: EOS/SPIE European Biomedical Optics Week, 2000, Amsterdam, Netherlands

Abstract

The main method of cataract treatment is micro surgical removing of the opaque lens from the eye with implantation of an intra ocular lens. We performed the comparative study of using various IOL models differing in its materials, index of refraction, spectral properties, configuration, shape, size and other features. Before and after the IOL implantation we performed the following test: visual acuity measuring, refractometry, keratometry, laser interferometric retinometry, color perception assessment, digital photo- and videorecording of the eye with image processing and some others. We found a number of correlations between the IOL properties and some characteristics of the patient's vision. The decentration of the IOL optical part more than 1,5 mm conduced to the non-corneal astigmatism and the prismatic effect. A small diameter of the IOL optical part and high index of refraction promotes to the appearance of the optical aberrations. Leucosapphire IOLs revealed the high degree of light reflection and the minimal adhesive ability of the IOL surface. Leucosapphire IOL revealed the high degree of light reflection and the minimal adhesive ability of the IOL surface. PMMA IOL revealed the low reflective power and the high adhesive ability. The best color vision was revealed in patients with PMMA IOL with an additional compound absorbing not only UV light but also short-wave blue light.

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Valery V. Bakutkin and Vladimir A. Galanzha "Role of intraocular lens parameters in visual rehabilitation of patients after extracapsular cataract extraction", Proc. SPIE 4156, Clinical Lasers and Diagnostics, (31 January 2001); https://doi.org/10.1117/12.413696

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KEYWORDS

Visualization

Color vision

Adhesives

Eye

Refraction

Eye models

Polymethylmethacrylate

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