[The strength of retinal sear tissue after argon-, xenon-, and cryocoagulation (author's transl)].

A method is presented for measuring the adhesive force between retina and pigment epithelium in rabbit eye preparations. This force shows a great interindividual variation and so the absolute value is of little interest. The variation of several readings in one animal is, however, significantly smaller. Therefore the relative change in adhesive force between untreated and treated areas of one animal can be used. The data shows similar increases of +25-30%. For laser-, xenon-, and cryocoagulation, the maximum adhesive strength is reached within 4-8 days after treatment. After a few weeks the additional adhesion in treated areas slowly fell to about +10% as compared to pretreatment levels.