[Dose-volume histogram regression analysis of uveal melanomas after single fraction gamma knife radiosurgery].

Background: To evaluate tumor regression and sequelae in 30 uveal melanomas treated with Gamma Knife radiosurgery between 1992 and 1995 at the Gamma Knife center in Graz.

Patients: A total of 30 uveal and ciliary body melanomas were treated with a single fraction of the Gamma Knife. The mean marginal dose was 52.

[A clinico-pathological case report of necrotizing ulcerating keratopathy due to topical anaesthetic abuse].

Background: Topical anesthetic abuse is rare, but difficult to diagnose since most patients deny its use and the clinical changes are very similar to other corneal diseases.

Case Report: A 45-year-old medical doctor with a 30-year history of soft contact lens wear and recurrent corneal erosion was admitted to our clinic with a ring-shaped keratitis and intense ocular pain. A corneal smear was negative for bacterial infections and acanthamoeba but the contact lens box contained a few dead acanthamoeba and many cocci.

Pupillary block after phakic anterior chamber intraocular lens implantation.

A 49-year-old patient developed pupillary block glaucoma with an intraocular pressure (IOP) of 29 mm hg after implantation of a phakic intraocular lens (IOL) (NuVita, Bausch & Lomb) in the left eye. the anterior chamber deepened again, and the iop decreased to 16 mm hg after a neodymium: YAG iridotomy. Pupillary block glaucoma may occur after phakic IOL implantation without iridotomy, and we advocate that routine iridotomy be performed during phakic IOL surgeries.

[Intracorneal silicone oil deposits].

Background: A patient with intraocular silicone oildeposits underwent paracentral corneal incision but the corneal sutures were never removed and 7 years later a perforating corneal transplantation was performed due to corneal opacification.

Methods: The corneal button was fixed in 10% buffered paraformaldehyde, embedded in celloidin and sections 200 microns thick were cut and stained with van Gieson. Some of these sections were embedded in paraffin and 5 microns thick sections were cut.