RESUMO
One hundred and five cases of corneal ulcers occurring from 1989 to 1990 at Siriraj Hospital were analysed retrospectively for causative organisms and predisposing factors. The average age was 39.0 years. Males and females were equally affected. The most common occupation was farming. The most common predisposing cause of ulceration was corneal trauma, usually with organic agricultural materials. 22.9 percent of cases had predisposing factors such as exophthalmos, lagophtalmos, entropion, contact lenses wear, etc. Ninety-two percent of the patients had been treated before presentation. Positive results from Gram stains and cultures were obtained from 58 and 51 percent of corneal scrapings, respectively. Bacterial, fungal, mioxed and unknown causes of corneal ulcers were 53.3, 24.8, 10.5, and 11.4 percent, respectively. The commonly isolated bacteria were Pseudomonas aeruginosa and Micrococcus, and fungi were Aspergillus species and Cladosporium species. Ten eyes were enucleated or limit corneal scar and minimize visual loss.
RESUMO
Fourty-seven patients with central serous retinopathy analysed at Siriraj Hospital. Twenty-three eyes were treated by krypton laser photocoagulation. It was found that the duration of resolution of subretinal fluid and recovery of visual acuity was about 3-4 weeks. In most eyes, the visual acuity returned to 6/9 and 6/6. After treatment, changes in pigment at macular area and esidual symptoms such as metamorphopsia, micropsia of scotoma were found in some patients. The treatment by krypton laser photocoagulation shortens the duration of the disease but organic and functional change of the macula may be found.