Eye model

Abstract

An eye model comprises a sclera simulation that comprises a bright plastic material, the plastic material comprising a polyvinyl chloride at least as the main component. The eye model also includes a pattern that contrasts in color with the sclera simulation, the pattern simulating an eye pupil and/or an iris structure. In a method for producing the eye model, a plate-shaped or rectangular blank of the plastic material having two oppositely situated blank flat sides is used, from which an eye body is separated by cutting or chipping machining. The separated eye body has a flattened area that is formed from a first blank flat side, and a convexly curved peripheral surface that surrounds the flattened area in a ring-like manner.

1 . An eye model, comprising:
 a sclera simulation comprising a bright plastic material, the plastic material comprising a polyvinyl chloride at least as the main component; and   a pattern contrasting in color with the sclera simulation, the pattern simulating an eye pupil or an iris structure.   
     
     
         2 . The eye model according to  claim 1 , wherein the plastic material is white in the area of the sclera simulation. 
     
     
         3 . The eye model according to  claim 1 , wherein the eye model comprises an eye body with a surface in the area of the sclera simulation that forms an annular surface in accordance with the shape of a spherical or ellipsoidal surface. 
     
     
         4 . The eye model according to  claim 3 , wherein the eye body has a flattened area on which at least a portion of the pattern is situated. 
     
     
         5 . The eye model according to  claim 4 , wherein the transition from the annular surface to the flattened area is a ring-shaped edge. 
     
     
         6 . The eye model according to  claim 3 , wherein the pattern is formed by:
 imprinting or painting the eye body, or   adhering to the eye body an adhesive element that bears the pattern.   
     
     
         7 . The eye model according to  claim 3 , wherein:
 the eye body has a flattened area on the side of the annular surface opposite from the pattern, and   the eye body defines a threaded hole in the region of the flattened area.   
     
     
         8 . The eye model according to  claim 1 :
 comprising an eye body having a flattened area and bright sclera simulation which that surrounds the flattened area in a ring-like manner; and   wherein:
 a pattern is formed on the flattened area, the pattern contrasting in color with the sclera simulation and simulating an eye pupil or an iris structure; and 
 the surface of the eye body in the area of the sclera simulation forms a convexly curved annular surface. 
   
     
     
         9 . A method for producing an eye model, comprising:
 provisioning a plate-shaped or rectangular blank, the blank comprising a bright plastic material that comprises polyvinyl chloride at least as the main component, wherein the blank has two oppositely situated blank flat sides;   cutting or chipping machining the blank to separate at least one eye body from the blank, the separated eye body having a first flattened area that is formed from a first of the blank flat sides, and a convexly curved peripheral surface that surrounds the first flattened area in a ring-like manner; and   forming a pattern, which contrasts in color with the plastic material and which simulates an eye pupil or an iris structure, in an area of the first blank flat side that corresponds to the first flattened area.   
     
     
         10 . The method according to  claim 9 , wherein a plurality of eye bodies is separated from the blank. 
     
     
         11 . The method according to  claim 9 , wherein the pattern is formed on the first blank flat side before the eye body is separated from the blank. 
     
     
         12 . The method according to  claim 9 , further comprising:
 introducing a threaded hole into the blank on the second of the blank flat sides, in association with each eye body to be separated from the blank, before the respective eye body is separated from the blank,   wherein the separated eye body has a second flattened area that is formed by the second blank flat side, and in which the threaded hole is situated.   
     
     
         13 . Use of an eye model for recording images of the eye model by means of an infrared camera, wherein:
 the eye model comprises an eye body that has a sclera simulation comprising a bright plastic material comprising polyvinyl chloride at least as the main component, and   the eye model has a pattern contrasting in color with the sclera simulation and simulating an eye pupil or an iris structure.   
     
     
         14 . The use according to  claim 13 , wherein:
 the infrared camera is part of an eye tracking system,   the eye model is moved relative to the infrared camera while the images are recorded, and   the eye tracking system detects eye movements on the basis of the recorded images.   
     
     
         15 . The use according to  claim 13 , wherein the eye model is situated on a patient table in the area of a head support of the patient table while the images are recorded.