[Consequences of extraocular rectus muscle myotomy in rabbits--in vivo and pathomorphologic studies]

The aim of investigations was to evaluate the changes in the eyeball, after extraocular rectus muscles myotomy. In 16 rabbits two muscles and in 17 four muscles were cut in one eye; the opposite eye was control. In early postoperative period intraocular pressure was statistically significantly lower, as compared with the control eyes and it depended on the number of cut muscles. In histopathological examination, the most constant changes were dilatation of conjunctival vessels and pigment migration in the anterior uvea. Decreased intraocular pressure and pigment migration in iris and ciliary body were considered to be the symptoms of anterior segment ischemia.