תוצאת חיפוש

Advances in Ophthalmological Photodynamic Therapy

Yoram Solberg, Michael Belkin

Goldschleger Eye Research Institute, Tel Aviv University and Chaim Sheba Medical Center, Tel Hashomer

Photodynamic therapy is a new experimental therapeutic technique which is attracting increasing attention. Its biopharmacological basis of action is the specific interaction of a photosensitizing compound with the cellular elements of pathological lesions. The photosensitizer is thought to enter specifically into the pathologic cells, where it accumulates. The lesion is then irradiated with a sensitizing laser-beam of specific wave-length to activate the photosensitizer, which then becomes a generator of free oxygen radicals. These radicals destroy the sensitizer-harboring pathological cells. The advantage of specifically destroying pathological lesions without affecting surrounding normal tissue is obvious. Recently, many experimental studies have been conducted to test the usefulness of photodynamic therapy for ocular disorders, mainly advanced age-related macular degeneration and uveal melanoma. Results so far are encouraging.

Occupational Accidents and Eye Injuries

Joseph Pikkel, Yuval Gelfand, Benjamin Miller

Ophthalmology Dept., Rambam Medical Center and Technion Faculty of Medicine, Haifa

To determine the prevalence of occupation-related eye injuries, we analyzed the records of 24,632 patients treated at our emergency surgical department over a 3-year period. Occupational accidents accounted for 17.6% of such cases. A third of them (1374 patients) were referred to the ophthalmic emergency room for further examination. In 89% (1223) of these, at least 1 pathological ocular finding was detected, and 8.3% (114) of them were hospitalized. Penetrating eye injuries were found in 5.2%(72). The commonest eye injury was corneal foreign body found in 42.8%.

Laser photorefractive surgery

Y. Domniz, L. Hefetz, D. Haviv, U. Kibersky, D. Karkovski, P. Nemet

Dept. of Ophthalmology, Assaf Harofeh Medical Center, Zerifin and Sackler Faculty of Medicine, Tel Aviv University

As photorefractive keratectomy (PRK) with excimer laser gains world-wide acceptance, more patients are able to discard their spectacles. Our study comprised 611 eyes which underwent PRK and were followed for at least a year. Those with myopia up to -6.00D had better post-operative visual acuity and refraction, than patients with higher grades of myopia. They had less corneal haze and a greater proportion were satisfied with their results. Complaints of halos and glare were similar at all degrees of myopia up to -10.00D.

Motor Vehicle Accidents And Eye Injuries

J. Pikkel, Y. Gelfand, E. Mezer, B. Miller

Dept. of Ophthalmology, Rambam Medical Center and Rappaport Faculty of Medicine, Technion-Israel Institute of Technology, Haifa

The medical records of 24,632 patients treated in our surgical emergency service over a 3-year period were reviewed to determine the frequency and characteristics of ocular trauma caused by motor vehicle accidents (MVA). MVA-related injuries accounted for 13.9% of all visits to the service and involved 1106 of the patients (33%), of whom 77% were young males. At least 1 pathological finding was found in 858 (77.6%) and 169 (15.2%) were admitted. 16 patients sustained very severe ocular injuries which resulted in poor vision.