Patent ID: 9468369
Filing Date: 2016-10-18
CPC Classification: A61B,A61F,G02B

Claim Text:
1. A method, comprising: providing a model eye comprising an optically transmissive structure having a front curved surface and an opposite rear planar surface, and a material structure provided at the rear planar surface of the optically transmissive structure having a characteristic to cause a speckle pattern of a portion of a coherent light beam that is directed back out through the front curved surface of the optically transmissive structure to have a bright-to-dark ratio of less than 2:1; performing one or more measurements of the model eye to verify correct operation of an optical measurement instrument which includes: employing the optical measurement instrument to measure a plurality of characteristics of a subject's eye, comprising ocular biometry information, anterior corneal surface information, posterior corneal surface information, anterior lens surface information, posterior lens surface information, lens tilt information and lens position information.