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Horst Kalthoff
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Slavko Mravak
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In their paper “Philophthalmus sp. (Trematoda) in a human eye” (Am. J. Trop. Med. Hyg., 31: 859–861, 1982), Mimori et al. reported a case of this avian fluke in the human conjunctival sac. As in the first published case, the immature fluke (containing unembryonated eggs) caused considerable follicular conjunctivitis.

In a recent report, we described a case of human philophthalmosis in a patient from Sri Lanka who had been in Berlin for 3 months. This case resembled the one reported in 1958 from Sri Lanka (Ceylon). The mature fluke contained embryonated eggs with eye-spots, and was located under the conjunctiva, causing essentially no irritation.

We therefore differentiated two forms of ocular philophthalmosis—an external conjunctival form with follicular conjunctivitis and superficial keratitis, and a subconjunctival form producing only minor reactions.

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