This is the second case of thelaziasis callipaeda (human parasitosis with Thelazia nematodes) reported in Okayama Prefecture. In this patient, the nematode was discovered by chance in the upper palpebral conjunctival sac during tests prior to a cataract operation and was removed. There was no sensation of any physical disorder. The nematode was a male, and it was assumed from the degree of curvature of the tip of the tail that the course parasitism was only a month or so long. Both of the cases in Okayama occurred in Mitsu-gun, which could be of importance in determining the spread of thelaziasis callipaeda in the future
