Biomedical subjects

M Velikay

Publications and source records attributed to M Velikay.

4 recordsLinked to original sources

PubMed1989

[Does cataract surgery with lens implantation influence the course of age-related macular degeneration?].

To evaluate the influence of cataract surgery with posterior chamber lens implantation on preexisting macular degeneration we divided 60 eyes of 54 patients in a group with 1) preoperative non exudative macular degeneration (50 eyes/47 patients) and 2) preoperative exudative macular degeneration (10 eyes/9 patients). Postoperatively, we found in the first group a visual improvement in 64%, an unchanged vision in 28%, and a deterioration in 8% of the cases. In the late postoperative course all eyes showed a visual acuity at least as preoperative values (6 eyes). In the second group, vision improved in 30%, remained unchanged in 30%, and deteriorated in 40% immediately after surgery. In 2 of these 4 cases vision showed no improvement even in the late postoperative period. A sudden increase of subretinal fluid in the macular region due to the operation trauma seems to be responsible.

Aged↗

PubMed1987

Does vitrectomy followed by intraocular gas tamponade offer sufficiently effective treatment of retinal detachment due to holes in the posterior pole?

We report on 17 consecutive cases of retinal detachment due to macular hole surgically treated by one of the authors (S.B.) between the fall of 1982 and 1985. The standard method used was pars plana vitrectomy and intraocular air tamponade. In cases of subsequent reaccumulation of subretinal fluid, the macular hole was cautiously coagulated. With repeated redetachment and as a last resort, silicone oil was injected into the vitreous cavity. After a follow-up period ranging from 5 to 42 months, 13 of the 17 eyes were cured; in 2 aphakic eyes treatment remained unsuccessful; in 2 eyes a small central detachment with some accumulation of subretinal fluid persisted but did not progress. Vitrectomy and gas tamponade alone, without coagulation, constitute the safest and most sparing treatment of this type of retinal detachment. Unfortunately, approximately one half of these cases require subsequent additional photocoagulation because of renewed accumulation of subretinal fluid. In about one fourth of macular hole retinal detachments, however, lasting reattachment is achieved only by silicone oil tamponade following initial vitrectomy and air/gas tamponade.

Adult↗

PubMed1986

[Differential diagnosis of papilledema].

Terminology, pathogenesis and differential diagnosis of papilloedema are discussed. A series of 100 consecutive patients with optic disc swelling is reviewed. Increased intracerebral pressure accounted for 32% of the cases. Vascular disease, such as central vein occlusion, central arterial occlusion and ischaemic neuropathy were the underlying diagnoses in the second largest group (22%) and in 18% of cases inflammatory disease caused the papillitis.

Diagnosis, Differential↗

PubMed1984

[Vitrectomy in uveitis].

Between January 1976 and December 1983, at the First University Eye Clinic in Vienna, 568 vitrectomies and 287 lensectomies were carried out; in 69 of these interventions (20 lensectomies and 49 vitrectomies) the diagnosis was uveitis. In 24 cases the indication for vitrectomy was an intermediary uveitis, a post-traumatic uveitis in 4 and a sympathetic uveitis in 6 cases as well as suppurative endophthalmitis in 7 patients. Indications for surgical removal of pathological tissue from the anterior chamber by the use of vitrectomy instrumentation were, in 4 cases each, hypopioniritis and a hemorrhagic uveitis, and in 12 cases a phacogenic uveitis. In about two thirds of this very heterogeneous patient material, employing vitrectomy made it possible to achieve regression of uveitis. In the remaining third of the patients, at least a stationary state of the disease was achieved and a reduction of corticosteroid and immunosuppressive therapy were made possible. The best functional results were achieved in all surgical interventions in the anterior ocular segment and in vitrectomies for intermediary uveitis. In suppurative endophthalmitis, however, these results were unfavorable.

Humans↗