Prosthetic Eye Movement
Maximizing Motion of an Ocular Prosthesis
There are many things that can be done to maximize motion of your prosthesis. Maximizing prosthetic eye movement is best achieved with an impression fit prosthesis. A custom fit prosthetic eye is fit from the back of the eye socket towards the front where the front curvature is custom made to maximize lid symmetry. A prosthesis can only move as much as the extraocular muscles allow it to move.
Sometimes adjustments can be made to the shape to remove areas which impinge on the edges of the socket on extreme gazes. We do not recommend pegging your prosthesis to increase motion because of the complications of infection of the implant. Some problems with pegs include discharge, pyogenic granulomas, peg popping or falling out, hydroxyapatite visible around the peg hole, part of peg shaft visible, drilled off center or at an angle, and excess movement of the peg.