Search

The tubular shape and tightly encapsulating orbit of the owl's eye would seem to make horizontal and vertical eye rotations impossible. The amazing flexibility of the neck, allowing the head to rotate 270 degrees on the torso, would seem to make eye movements unnecessary. These two characteristics have led to the claim that the owl eye is immobile. The authors report the presence of small eye movements (less than 1.5 degrees) in awake, unanesthetized owls, occurring both spontaneously and elicited by visual and vestibular stimuli.

This is a publication covering selected papers and discussions from the Seventeenth Annual Meeting of the American Society of Ocularists in Dallas in 1975. The lead article is by Lee Allen on the reduction of ptosis with a prosthesis, a most exhaustive and scholarly contribution to this vexing problem. In the following chapter Dr Tenzel discusses the surgical correction of such a ptosis, while Mr Rarey describes the procedure of lowering the upper lid by changing the prosthesis. Mr Bulgarelli discusses the correction of an entropion or ectropion as produced by the prosthesis and, similarly, Dr Merrill J. Reeh and Dr Charles K. Beyer discuss the surgical correction of such complications. A number of other contributors discuss the prosthesis after exenteration, the influence of a small eye or a small orbit on the prosthesis, and the camouflage of orbital deformities by a prosthesis. Dr P. Guibor describes cosmetic blepharoplasty in