Accommodating intraocular lens measurement implant

Abstract

An accommodation measurement implant for measuring accommodation in an experimental set-up including an animal eye having a visual axis and including a sclera of tough connective tissue, an annular ciliary sulcus, and a sphincter-like ciliary body having a relaxed state for tensioning a capsular diaphragm in an anterior direction along the visual axis. The implant includes a rigid base member with a haptics system for penetrating the tough connective tissue of the animal eye's sclera for self-anchoring said base member in the animal eye's annular ciliary sulcus at least two spaced apart stationary anchor points, and having a central aperture. The implant also includes a convex shaped member for placing on the animal eye's capsular diaphragm from an anterior direction and biased away from said base member in a posterior direction for urging the capsular diaphragm in a posterior direction, and having an upright pin passing through said aperture whereupon relaxation of the animal eye's ciliary body urges the animal eye's capsular diaphragm in an anterior direction for urging said pin through said aperture.

1 - 23 . (canceled) 
     
     
         24 . An accommodation measurement implant for measuring accommodation in an experimental set-up including an animal eye having a visual axis and including a sclera of tough connective tissue, an annular ciliary sulcus, and a sphincter-like ciliary body having a relaxed state for tensioning a capsular diaphragm in an anterior direction along the visual axis, the implant comprising:
 (a) a rigid base member with a haptics system for penetrating the tough connective tissue of the animal eye's sclera for self-anchoring said base member in the animal eye's annular ciliary sulcus at least two spaced apart stationary anchor points, and having a central aperture; and   (b) a convex shaped member for placing on the animal eye's capsular diaphragm from an anterior direction and biased away from said base member in a posterior direction for urging the capsular diaphragm in a posterior direction, and having an upright pin passing through said aperture whereupon relaxation of the animal eye's ciliary body urges the animal eye's capsular diaphragm in an anterior direction for urging said pin through said aperture.   
     
     
         25 . The implant according to  claim 24  wherein said pin has graduations along at least a portion of its length.