Angular dependence of the intensity of backscattered light from human lenses with nuclear cataract: implications for measurement

Per G. Soederberg; Wen Qian; Enping Chen

doi:10.1117/12.387508

7 June 2000 Angular dependence of the intensity of backscattered light from human lenses with nuclear cataract: implications for measurement

Per G. Soederberg, Wen Qian, Enping Chen

Author Affiliations +

Proceedings Volume 3908, Ophthalmic Technologies X; (2000) https://doi.org/10.1117/12.387508
Event: BiOS 2000 The International Symposium on Biomedical Optics, 2000, San Jose, CA, United States

Abstract

It is concluded that there is no angular dependence of back scattering of light from a nuclear cataract. This implicates that reading one meridian, e.g. the 90 degree, is enough for measurement of nuclear cataract with slit lamp microscopy with Scheimpflug projection. Altogether, ten patients with nuclear cataract were measured with the NIDEK EAS-1000 system in 6 meridians. There was a slight angular dependence fitting a second order polynomial with a maximum at 90 degrees. In total, three different concentrations of standard scattering solution were measured with the same system at the same meridians. Also for these measurements, there was a slight angular dependence fitting a second order polynomial with the maximum at 90 degrees. Thus, there is a system related factor that causes a slight change of intensity of back scattered light as function of meridian.

Citation Download Citation

Per G. Soederberg, Wen Qian, and Enping Chen "Angular dependence of the intensity of backscattered light from human lenses with nuclear cataract: implications for measurement", Proc. SPIE 3908, Ophthalmic Technologies X, (7 June 2000); https://doi.org/10.1117/12.387508

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available