초록 ▼

A novel optical device and method for measuring intraocular light scatter in a human vision system of a subject is described which comprises first and second light sources of respective predetermined intensities, the images of which are optically folded along a common optical axis and projected into

A novel optical device and method for measuring intraocular light scatter in a human vision system of a subject is described which comprises first and second light sources of respective predetermined intensities, the images of which are optically folded along a common optical axis and projected into the vision system of the subject, the first source being of intensity sufficient to generate intraocular haze in the vision system of the subject, the second source being movable in a plane substantially perpendicular to the axis along which its image is projected whereby the second source image as viewed by the subject may be selectively viewed with respect to the first source image to measure the apparent peripheral extent of the haze surrounding the first source image.

대표청구항 ▼

An optical system for measuring intraocular light scatter in the vision system of a subject, comprising: a. a first glare source of light and a and second point source of light of respective preselected intensities, said first glare source being of intensity greater than said second point source whe

An optical system for measuring intraocular light scatter in the vision system of a subject, comprising: a. a first glare source of light and a and second point source of light of respective preselected intensities, said first glare source being of intensity greater than said second point source whereby intraocular haze is generated by said first glare source in said vision system of said subject; b. first optical means for projecting an image of said first glare source along a first optical axis into said vision system of said subject; c. second optical means for projecting an image of said second point source along a second optical axis intersecting said first optical axis; d. means for optically superimposing said image of said second point source onto said image of said first glare source for projection therewith along said first optical axis into said vision system of said subject; e. means connected to said second point source for moving said second point source in a plane substantially perpendicular to said second optical axis, whereby said image of said second point source as viewed by said subject is selectively movable with respect to said image of said first glare source; and f. measurement means for gauging the observed circumferential extent of said haze in contrast to said image of said second point source.