[Pathogenesis of secondary glaucoma after intraocular silicone oil administration].

Background: There are various causes of increasing ocular tension after vitrectomy and intraocular silicone oil filling; it is reported on a new type of postoperative secondary glaucoma.

Materials And Methods: A 56-year-old man with flat anterior chamber and secondary glaucoma after vitrectomy and intraocular silicone oil filling was examined; only the transpupillary inspection of the posterior surface of the iris with the three mirror contact glass yielded the decisive reference to the pathogenesis of the glaucoma.

Results: The secondary glaucoma was caused by small perfluoroctane bubbles blocking up Ando's peripheral iris coloboma.

[Morphology of the anterior vitreous body membrane in congenital aniridia].

Background: Hitherto no attention was paid to the prebasal vitreous body in children with congenital aniridia. Obviously there are, at least occasionally, two remarkable anomalies of the anterior hyaloid membrane.

Materials And Methods: Two children (one 3 years and the other 4 years old) with congenital anirida were examined in supine position at a special slitlamp in general anaesthesia.

[Pre-basal vitreous body after subtotal vitrectomy of aphakic eyes].

The anterior axial vitreous body of aphakic eyes is often severely liquefied. In a vitrectomy case, it was removed easily and completely. The behavior of the prebasal vitreous cortex after the procedure was not predictable.

[Gonioscopy of the shallow anterior chamber].

During gonioscopy the aqueous humor can be shifted by appropriate indentation with the goniolens (Forbes test). The iris root is affected in a variety of ways: it may sink in, troughlike, or be deformed to an S-shape, or remain unchanged. The different findings depend on the configuration of the ciliary processes and the position of the lens equator; they enable conclusions to be drawn concerning the risks of inverse reaction to miotics or of ciliary lens block (malignant) glaucoma.