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[Experiences with the intraocular silicon prosthesis as an alternative to enucleation in dogs and cats].

The intraocular implantation of a silicone prosthesis fulfills all important requirements to be used in dogs and cats. Given the appropriate indication including glaucoma in the first place, this method should be preferred to enucleation. The operation procedure is described and clinical observations in 14 dogs and 6 cats are reported. All animals tolerated the implant well and appeared to be pain-free. The cosmetic results depended on the correct size of the implant and on the nature of the corneal response. Final evaluation of the cosmetic effect was only possible one year or even more after operation.

Animals↗

Lid suture myopia in chicks.

Domestic chicks reared under continuous light developed light-induced avian glaucoma (LIAG), including eye enlargement and flat cornea. Chicks reared under dim light developed dim light buphthalmos (DLB), a somewhat similar eye enlargement, superimposed on the LIAG effect when, as in one subgroup of the present experiments, the dim light was also continuous. Unilateral lid suture elicited experimental myopia on the operated side, additive to the LIAG and/or DLB effects. When the rearing conditions were diurnal (ie, not such as to induce LIAG eye enlargement), and the light of at least "normal" brightness, lid suture still caused unilateral myopia, accompanied by a pronounced bulging of the cornea. We discuss the probable effects of these changes on refraction and accommodation during the chick's development.

Animals↗

Buphthalmos in neurofibromatosis: is it an expression of regional giantism?

A case of buphthalmos and regional giantism in neurofibromatosis with the characteristics of the Francois syndrome is reported. Difficulties of early diagnosis are emphasized. A discussion of the mechanisms which may produce buphthalmos in neurofibromatosis is presented. We propose that buphthalmos in neurofibromatosis may be primarily an expression of regional giantism rather than a consequence of uncontrolled intraocular pressure.

Adult↗

[The glaucoma of encephalo-trigeminal angiomatoses].

A study of 9 cases of trigeminal noevus flammeus was performed. Eight had congenital glaucoma and where followed from 1 to 10 years. Only three had intracranial involvement. Hemangiomatosis was often atypical: including cavernous hemangioma, association with cutis marmorata telangiectatica congenital and bilateral involvement. Glaucoma was a mild congenital glaucoma in all cases improved by surgical treatment. Surgery was easily performed and a superficial capillary network on the sclera was seen in all patients. No genetic factor was demonstrated in our patients.

Brain Neoplasms↗