Patent ID: 8328356

Claim:
An apparatus for making measurements of a particular portion of a subject eye comprising: a handheld eye imaging device including a first lens and a second lens and an image sensor with the first lens configured to project an intermediate image of the particular portion of the subject eye to a location between the first and second lenses and with the second lens configured to project the intermediate image onto the image sensor; and a reticle, having a pattern of lines or other marks formed thereon, positioned substantially at the location of the intermediate image so that both the reticle and the intermediate image particular portion of the subject eye are conjugate to the image sensor, an image of the reticle is projected onto the image sensor by the second lens and where the image of the reticle overlays the image of the particular portion of the subject eye projected onto the image sensor by the second lens to facilitate measurements of the particular portion of the subject eye.