{'fraction_non_alphanumeric': 0.03337041156840934, 'fraction_numerical': 0.013348164627363738, 'mean_word_length': 5.18213058419244, 'pattern_counts': {'":': 0, '<': 0, '<?xml version=': 0, '>': 0, 'https://': 0, 'lorem ipsum': 0, 'www.': 0, 'xml': 0}, 'pii_count': 0, 'substrings_counts': 0, 'word_list_counts': {'cursed_substrings.json': 0, 'profanity_word_list.json': 0, 'sexual_word_list.json': 0, 'zh_pornsignals.json': 0}}
Intravitreal Filariasis: The Accidental Traveler.

The parasitic disease filariasis is endemic in Southeast Asia and West and Central Africa. Until recently, it was limited to residents of these countries, but increased tourism and emigration have extended its impact in Europe. An estimated 30% of long-term visitors are infected by this parasite. Humans contract filariasis when infected by the bite of a microfilariae-carrying insect. The larvae migrate to subcutaneous tissue, where they reside until maturity (3 months). After 6 months to 12 months, microfilariae can be detected in the blood. While ocular involvement is uncommon, it most commonly affects the orbit, subconjunctival space, and anterior chamber, symptoms often including foreign body sensation and palpebral or bulbar conjunctival inflammation. A 68-year-old woman with 20/20 vision presented complaining of floaters and a “snake-like” shadow moving in her left eye. Examination revealed a mobile worm in the vitreous cavity without signs of ocular inflammation (Figures 1–3). The patient had visited Bali 2 years earlier. The mobile white parasite seen in this video, which was clinically consistent with the appearance of filariasis, was removed by an uncomplicated 20-gauge pars plana vitrectomy (see Video, Supplemental Digital Content 1, http://links.lww.com/IAE/A431). Unfortunately the parasite was destroyed by the vitreous cutter and confirmatory pathology was therefore not available. The patient has retained excellent vision with no ocular inflammation after 18 months of follow-up. Intravitreal involvement is extremely rare. The parasite’s route of entry into the vitreous cavity is unknown, Fig. 1. Color photograph of the slit-lamp examination with retroillumination, showing the worm in the anterior vitreous.