A ray tracer for ophthalmological applications.

Wolfgang Fink, A. Frohn, U. Schiefer, E. W. Schmid, N. Wendelstein

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

Ray tracing with a personal computer allows realistic simulation of optical properties of the human eye. Patterns of point sources are used as objects. The path of light rays is calculated between the point source and the retina for a Gullstrand eye model with improved parameters; the normal eye model has a resolution limit close to the natural resolution limit of the human eye. The image formed on the retina is projected back to a screen at the distance of the object so as to simulate image interpretation by the brain. Refractive errors are modeled by a change in eye parameters and corrected by eyeglasses or/and contact lenses or by an artificial intraocular lens. For optic correction the parameters of seeing aids can be fitted automatically by a least-squares routine. The effect of faulty eye correction on image quality is visualized by using a photograph of a realistic scene as an object.

Original languageEnglish (US)
Pages (from-to)118-125
Number of pages8
JournalGerman journal of ophthalmology
Volume5
Issue number2
StatePublished - Mar 1996
Externally publishedYes

Fingerprint

Retina
Refractive Errors
Intraocular Lenses
Contact Lenses
Microcomputers
Least-Squares Analysis
Light
Brain

Cite this

Fink, W., Frohn, A., Schiefer, U., Schmid, E. W., & Wendelstein, N. (1996). A ray tracer for ophthalmological applications. German journal of ophthalmology, 5(2), 118-125.

A ray tracer for ophthalmological applications. / Fink, Wolfgang; Frohn, A.; Schiefer, U.; Schmid, E. W.; Wendelstein, N.

In: German journal of ophthalmology, Vol. 5, No. 2, 03.1996, p. 118-125.

Research output: Contribution to journalArticle

Fink, W, Frohn, A, Schiefer, U, Schmid, EW & Wendelstein, N 1996, 'A ray tracer for ophthalmological applications.', German journal of ophthalmology, vol. 5, no. 2, pp. 118-125.
Fink W, Frohn A, Schiefer U, Schmid EW, Wendelstein N. A ray tracer for ophthalmological applications. German journal of ophthalmology. 1996 Mar;5(2):118-125.
Fink, Wolfgang ; Frohn, A. ; Schiefer, U. ; Schmid, E. W. ; Wendelstein, N. / A ray tracer for ophthalmological applications. In: German journal of ophthalmology. 1996 ; Vol. 5, No. 2. pp. 118-125.
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