[Primary malignant melanoma of the cornea (author's transl)]. / Mélanome primitif malin de la cornée.

In this communication, we present a case of malignant melanoma of the cornea, in an 80-year old female. The tumor, covering 3/4 of the cornea, had a lobulated appearance, pinkish colour with vascularization and pigment granules, in a few places. The limbal area was free of tumor. Histologic examination indicated that the melanoma was primary, of the epithelioid type, with a few areas of spindle type cells.

[Changes of the corneal thickness after cataract extration (author's transl)]. / Changements observés sur l'épaisseur cornéenne après l'opération de la cataracte.

A study of changes of the corneal thickness after cataract extraction was carried out on 149 patients. Cataract extraction was performed with partial knife incision or "ab externo" incision. The corneal thickness was measured with a Haag-Streit pachometer prior to cataract extraction and 4 days to 6 months after the operation. The investigation showed that the postoperative increase of the corneal thickness returns as before the operation.

[Intraocular complications following Custodis-Lincoff operation]. / Observations sur les complications intraoculaires survenant aprés l'opération Custodis-Lincoff

This investigation is based on 262 cases of retinal detachment treated with episcleral silastic sponge implants and cryopexy. Anatomical restoration of the retina after one operation or more was successful in 89 percent. Drainage of subretinal fluid was carried out in 52 percent of the cases. Supplementary light-coagulation 3 or 4 weeks after the operation was applied in 43 cases (17 percent) in order to seal off retinal holes on the buckle due to inadequate chorioretinal adhesion following cryopexy. Insufficient adhesion was directly related to the retinal elevation in the area of the tear. Chorioretinal haemorrhages in the group without release of subretinal fluid were caused by the following factors: Repeated cryo-application in the same place, application of the probe on the open part of the tear instead of around the tear, sponge-fixation in the immediate area to vortex veins, pressure exerted by the sponge on choroidal and retinal vessels, particularly in persons of advanced age. Local haze of the vitreous corresponding to the location of the cryp-application was directly related to the number of applications and the position of the tear. Vitreous haze was more frequent where the hole was situated towards the ciliary body. Pigment migration was observed in 9 percent of the cases. It should be noted that this complication was also encountered preoperatively in a group amounting to 4 percent of the total number of cases after padding of the eyes and absorption of subretinal fluid. Such cases should be distinguished from those of postoperative occurrence of pigment migration. Detachment of the choroid happened more often in the group in which subretinal fluid was released. In this group expulsive haemorrhage also occurred, which, apart from the choroidal detachment, resulted, immediately upon drainage of subretinal fluid, in high intracular pressure. Macular puckering was noticed in 5 cases (2,7 percent). In 4 out of the 5 cases with this complication, the tear was located towards the posterior pole and sponge fixation was radial.