Adjusting Orbit Height

Anophthalmic patients often appear to have a sunken socket due to lower lid sag (from an unpegged artificial eye), an inferior orbit “blow-out” fracture, or from atrophy of orbital tissues. In such cases, a prism can be used to raise the apparent height of the orbit.

A prism is used to displace the image behind it. It works very well for a patient with a displaced socket. In the past, the prism added significant weight to the lens, but nowadays a press-on Fresnel prism, composed of a thin, flexible, wafer-like material that provides optical power and prism power to aid in image displacement, is used.

Ocularists, especially those with a background in optics, are often aware of the capabilities of cosmetic optics. Improved awareness and communication between our specialities will ensure optimum cosmetic rehabilitation of the anophthalmic patient.”

Excerpt from “Movements” volume 4