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Arizona Ophthalmological Society
172
AMERICAN JOURNAL OF OPHTHALMOLOGY
Straub reviewed the literature and his own research on the ERG after administra tion of the following drugs: methyl alcohol, ethyl-alcohol, caffeine, tobacco, quinine, chloroquine, chrompromacine, hallucinogen ic drugs, barbiturates and anesthetics. He noted differences between acute and chron ic intoxications. Schmidt found a lower b-wave amplitude and a delayed increase of b-wave threshold in patients with liver cir rhosis. Genest studied the ERG in vitamin-Adeficient subjects in Thailand and Indone sia. She noted reduced responses in these patients but could not find a relationship be tween the ERG and blood vitamin-A levels. The prognostic value of the ERG in pa tients with cataracts was discussed by Jayle. He concluded that high intensity red light was the most appropriate stimulus in these patients. Gouras considered the relationship be tween the ERG and EOG and discussed the origin of these potentials. Kris used the EOG to study eye movements under high altitude conditions and in evaluating reading methods. Imaizumi, Atsumi, Takahashi and Youshida evaluated the ERG and EOG of rabbit eyes after sodium-iodate injections. Van der Tweel reviewed the present sta tus of evoked occipital responses (VER) and emphasized the need for standardiza tion and for the use of more physiologic stimuli than are now used. Saturation effects and differences produced by modulation at various frequencies were considered. Monnier evaluated the various components of the VER. He concluded that specific compo nents were more red-sensitive than were ERG potentials. As a bonus to the full and stimulating program, participants had the opportunity to visit historical sites in Ghent and sur rounding Belgian cities, including Bruges. The meeting was highlighted by a delightful dinner in a Belgian castle at Laarne. The group has Prof. Jules François to thank for a well-organized program and a wonder ful stay in Ghent.
JANUARY, 1967
The next meeting will be held at Erfurt, East Germany, in September, 1967. Alex E. Krill ARIZONA OPHTHALMOLOGICAL SOCIETY Recent developments in uveitis. Dr. Michael Hogan (University of California, San Francisco). Toxoplasma organisms move easily in tis sue. After causing one lesion they may move and cause another lesion. This process might be discouraged by photocoagulation around the original lesion. They have a mouthlike structure on one end and multiple organisms may line up like "hogs at a trough." They may remain viable in encyst ed form up to 25 years. There is a high in cidence of toxoplasmosis in Denmark where uncooked hamburger is popular. Acquired toxoplasmosis is almost always unilateral and occurs within two months after a mild flulike illness. Histoplasmosis causes a hemorrhagic macular lesion in young people, and nearly all will get it in the second eye in one to four years. Chronic cyclitis in children may in some cases be due to the larvae of the Toxocara nematode. The ova may be ingested by chil dren who eat dirt containing the excreta of pets. James Calkins Secretary-Treasurer
PHILIPPINE OPHTHALMOLOGICAL SOCIETY The seventh annual meeting of the society was held at the Philippine General Hospital. The ciliary body and intraocular pres sure. G. de Ocampo and co-workers showed
AMERICAN JOURNAL OF OPHTHALMOLOGY
Straub reviewed the literature and his own research on the ERG after administra tion of the following drugs: methyl alcohol, ethyl-alcohol, caffeine, tobacco, quinine, chloroquine, chrompromacine, hallucinogen ic drugs, barbiturates and anesthetics. He noted differences between acute and chron ic intoxications. Schmidt found a lower b-wave amplitude and a delayed increase of b-wave threshold in patients with liver cir rhosis. Genest studied the ERG in vitamin-Adeficient subjects in Thailand and Indone sia. She noted reduced responses in these patients but could not find a relationship be tween the ERG and blood vitamin-A levels. The prognostic value of the ERG in pa tients with cataracts was discussed by Jayle. He concluded that high intensity red light was the most appropriate stimulus in these patients. Gouras considered the relationship be tween the ERG and EOG and discussed the origin of these potentials. Kris used the EOG to study eye movements under high altitude conditions and in evaluating reading methods. Imaizumi, Atsumi, Takahashi and Youshida evaluated the ERG and EOG of rabbit eyes after sodium-iodate injections. Van der Tweel reviewed the present sta tus of evoked occipital responses (VER) and emphasized the need for standardiza tion and for the use of more physiologic stimuli than are now used. Saturation effects and differences produced by modulation at various frequencies were considered. Monnier evaluated the various components of the VER. He concluded that specific compo nents were more red-sensitive than were ERG potentials. As a bonus to the full and stimulating program, participants had the opportunity to visit historical sites in Ghent and sur rounding Belgian cities, including Bruges. The meeting was highlighted by a delightful dinner in a Belgian castle at Laarne. The group has Prof. Jules François to thank for a well-organized program and a wonder ful stay in Ghent.
JANUARY, 1967
The next meeting will be held at Erfurt, East Germany, in September, 1967. Alex E. Krill ARIZONA OPHTHALMOLOGICAL SOCIETY Recent developments in uveitis. Dr. Michael Hogan (University of California, San Francisco). Toxoplasma organisms move easily in tis sue. After causing one lesion they may move and cause another lesion. This process might be discouraged by photocoagulation around the original lesion. They have a mouthlike structure on one end and multiple organisms may line up like "hogs at a trough." They may remain viable in encyst ed form up to 25 years. There is a high in cidence of toxoplasmosis in Denmark where uncooked hamburger is popular. Acquired toxoplasmosis is almost always unilateral and occurs within two months after a mild flulike illness. Histoplasmosis causes a hemorrhagic macular lesion in young people, and nearly all will get it in the second eye in one to four years. Chronic cyclitis in children may in some cases be due to the larvae of the Toxocara nematode. The ova may be ingested by chil dren who eat dirt containing the excreta of pets. James Calkins Secretary-Treasurer
PHILIPPINE OPHTHALMOLOGICAL SOCIETY The seventh annual meeting of the society was held at the Philippine General Hospital. The ciliary body and intraocular pres sure. G. de Ocampo and co-workers showed