[Conventional ablation surgery or primary vitrectomy in complicated retinal holes].

Background: We retrospectively evaluated 100 difficult cases out of 803 consecutive eyes with retinal detachment in order to determine the best surgical procedure in cases with difficult break configurations such as multiple, large, and central holes.

Methods: We treated the eyes either with conventional buckling surgery (n = 60) encircling buckle (EB) plus sponge exoplant (SP) (n = 45) or multiple sponge exoplants (n = 15) or with primary vitrectomy (PV) (n = 40). From the 40 patients in the PV group, 10 underwent vitrectomy plus intraocular gas only, in the other cases an encircling band was used (n = 30).

[Subretinal neovascular membranes in membranoproliferative glomerulonephritis type II].

Background: So called 'dense deposits' in the retina of a patient suffering from membranoproliferative glomerulonephritis type II (MPGN II) were first demonstrated in 1989. Appearence of subretinal neovascular membranes associated with MPGN II in three patients was described in 1990.

Patient And Methods: We present a 45-year-old male patient, whose insufficiency of the kidney due to a membranoproliferative glomerulonephritis type II required peritoneal dialysis and later transplantation.

[Consequent use of the Aachen therapy concept after severe chemical burns of both eyes].

Background: Severe chemical burn and its complications still are a serious threat to the afflicted eye, particularly in case of insufficient treatment. Rehabilitation of visual acuity can be achieved only in the minority of cases.

Patient: We present a 49-year-old female patient, who suffered a severe chemical burn in both eyes by alcaline detergent.

[Outcome after vitrectomy in rhegmatogenous retinal detachment and dense vitreous opacities].

Background: In some cases of rhegmatogenous retinal detachment dense vitreous opacities can delay the diagnosis and prevent a scleral buckling procedure. In these cases a primary vitrectomy is necessary. These results of vitrectomy are of current interest, because intra- and postoperative complications are comparable to the group of patients with retinal detachment and clear media, in which primary vitrectomy is discussed today as an alternative method.

[Cyclophotocoagulation with the diode laser in contact procedure with a new focussing tip].

Unlabelled: During contact cyclophotocoagulation (CPC) energy is transmitted through the conjunctiva and the sclera by direct contact of a plain fibre tip. Alteration and scarring of the conjunctiva and the outer parts of the sclera cannot always be avoided. We used a new fibre tip which defocuses the laser light on the conjunctiva and sclera and focuses the laser light on the ciliar body.