[Original technique of double capsulorhexis].

The current endophako technique with posterior scleral tunnel incision requires perfect continuous curvi-linear capsulorhexis. A rupture in the capsulorhexis ring may produce a posterior capsular tear. An excessively large anterior capsular residue will lead to purse-string fibrosis.

[Primary empty sella turcica syndrome].

Authors relate a typical case of primary empty sella turcica. Its physiopathogenesis is not yet well known, ophthalmological manifestations are non specific and variable, and authors point out difficulties in treatment.

[Human collagen IV lenses and epikeratoplasy in monkeys. Study of epithelial cicatrization].

A previous study showed the good tolerance of the human type IV collagen lenses implanted by epikeratoplasty in 8 monkeys. It also showed type IV collagen is a good material for the reepithelialization. But we have been interested in the stability of the epithelial healing.

[Epikeratoplasty without sutures using collagen IV lens in monkeys: description of the surgical technic].

The authors describe their original epikeratoplasty technic without sutures which is compatible with the use of collagen IV lens. They describe the first four observations of primates operated on using this technic. At first the epithelium is removed at the cornea center and a trepanation is made of 4 mm diameter and 0.

Biocompatibility of human collagen type IV intracorneal implants.

A new biomaterial made from human placental collagen type IV has been developed in corneal inlays for refractive keratoplasty. Eight dogs received intracorneal lenses to investigate biocompatibility. Postoperative follow-up observation of 2 years revealed that the eyes remained clear and without inflammatory reaction.