Experimental study of spherical aberrations of intraocular lenses with different materials and designs

To study the characteristics of spherical aberrations (SA) of the traditional intraocular lenses (IOLs) produced by different materials and designs. A special optical metrical system was established in the laboratory to measure the SA of IOLs by using the Hartmann-Shack aberrometer. Eight different...

Full description

Saved in:
Bibliographic Details
Published inChung-hua yen k'o tsa chih Vol. 43; no. 8; p. 688
Main Authors Yang, Rui-bo, Tang, Xin, Yuan, Jia-qin
Format Journal Article
LanguageChinese
Published China 01.08.2007
Subjects
Lenses, Intraocular
Materials Testing
Prosthesis Design
Online AccessGet more information

Cover

More Information
Summary:To study the characteristics of spherical aberrations (SA) of the traditional intraocular lenses (IOLs) produced by different materials and designs. A special optical metrical system was established in the laboratory to measure the SA of IOLs by using the Hartmann-Shack aberrometer. Eight different types of IOLs were divided into two Groups. Group 1 consisted of 4 types of IOLs made by different materials, Group 2 consisted of 4 types of IOLs made by different designs. SA of these IOLs was measured at 3, 4, 5, 6 and 7 mm apertures separately. All data was analyzed statistically. With the size of aperture increased, SA in these two groups was both increased. There were positive correlations between the size of aperture and the SA (r = 0.6465, 0.7872; P < 0.01). The numbers of IOLs fitted with Rayleigh criterion at apertures of 3, 4, 5, 6, and 7 mm were 8, 5, 3, 2 and 2, respectively. In Group 1, the acrylic IOL (SA60AT) with high refractive index showed the greatest SA, and the acrylic IOL (AR40e) with low ref
ISSN:0412-4081