The occurrence of human thelaziasis in Oita, Japan. A questionnaire survey on ophthalmologists.:A QUESTIONNAIRE SURVEY ON OPHTHALMOLOGISTS

概要

論文の詳細を見る
The questionnairing on the occurrence of human thelaziasis conducted in 1983 to 41 ophthalmologists practicing in Oita obtained 15 new cases, 5 of which remained undetermind because of the lack of precise record and parasite removed. Eight of the remaining 10 cases were confirmed as thelaziasis caused by <I>Thelazia callipaeda</I> by the morphological characters of the parasites preserved, 1 was suspected so by record, but the last 1 was not thelaziasis (the worm removed and preserved was a larva of Chironomiidae which had accidentally entered the eye probably while the patient was washing face in the field). Review of these 9 new human cases, together with 7 of 9 previously reported cases from Oita showed that human thelaziasis has continued to occur every year since 1975 when the first case was reported, in several areas including Oita city. The disease was found from May (early summer) to December (early winter), with the peak in October. The patients chiefly complained feeling of foreign body in their eye, followed by mucous secretions, itch, and epiphora. An age-depending trend of prevalence was observed, showing high rates in infants less than 5 years old and also in aged people over 60 years old.
日本熱帯医学会の論文