Thelaziases in human is an opportunistic infection. The worms usually lie in the conjunctival sac or in the lacrimal apparatus, causing foreignbody sensation, tearing and conjunctival irritation, In most cases, patients find the worms themselves and visit the hospital. Having experienced and confirmed 5 cases of human subconjunctival infestation of Thelazia callipaeda, we report these with literature review.
Humans* ; Lacrimal Apparatus ; Opportunistic Infections ; Parasites ; Sensation ; Thelazioidea

Thelazia callipaeda was first described by Railliet and Henry in 1910. The first human case was reported by Stuckey in 1917, who extracted four worms in the eye of a coolie in Peiping. In Korea, seven cases of human thelaziasis have been already reported and all of the worms were identified to be thelazia callipaeda. The present paper is to report the 8th human infested case of Thelazia callipaeda in Korea. The patient was 25 years old virgin who had lived in Seoul since birth. She experienced lacrimation and moving foreign body sensation of the left eye, and extracted 1 living worm from the left eye by herself on one day prior to examination. Microscopic measurements of an extracted worm are as follows; A worm(male) is 13.0 mm B worm(male) is 13.1 mm and C worm(female) is 19.0 mm in length. It was confirmed as Thelazia callipaeda Railliet et Henry 1910.
Adult ; Foreign Bodies ; Humans* ; Korea* ; Parturition ; Sensation ; Seoul ; Thelazioidea

The authors present a case of human Thelaziasis in Korea with the review of literatures. The patient was 58-year-old Korean housewife who visited with the complaints of foreign body sensation and lacrimation in her right eye. A day prior to the presentation, she extracted 2 living worms from the same eye by herself. But, after the examination of the eye, 3 living worms were removed under topical anesthesia with 0.5% Pontocaine. The worms were slender and creamy white Thelazia worms. Two of those were 13.3mm in length, 0.5mm in diameter and the other was 18.0mm in length, 0.6mm in diameter.
Anesthesia ; Foreign Bodies ; Humans ; Korea ; Middle Aged ; Sensation ; Tetracaine ; Thelazioidea

Thelaziasis in human is an oppotunistic infection.The worms usually lie in the conjunctival sac or in the lacrimal apparatus, causing foreign body sensation, tearing, conjunctival irritation and subconjunctival hemorrhage. Corneal abrasion and corneal opacity may develop.In most cases, patients find the worms themselves and visit the hospital. The authors experienced and confirmed a case of human subconjunctival infestation of 3 worms of Thelazia callipaeda in 6 months old infant in Kyungpook province.We report this case with literature review.
Corneal Opacity ; Foreign Bodies ; Gyeongsangbuk-do ; Hemorrhage ; Humans ; Infant ; Lacrimal Apparatus ; Sensation ; Thelazioidea*

The authors report two cases of Thelazia callipaeda in Korea. The patients complained of foreign body sensation, lacrirmation, and conjunctival reaction. The first case was a 24-year-old man who had a male and a female worms in the conjunctival sac of the eye. The gross appearance of the worms was white nematode, and their microscopic measurement are as follows: 8.22mm in length, 0.29mm in width, 0.02mm in length of oral cavity, 0.48mm in length of the esophagus, 190-360 cuticular striations per mm. The second case was a 9-years-old girl from whom the authors extracted 14 mobile worms in the conjunctival sac of the eye. The worms were 5 males and 9 females. Morphologic features are as follows; average length of the male and female 11mm and 16mm, 0.30mm and 0.29mm of width, 0.60mm and 0.64mm of the esophagus, 0.026mm and 0.03mm of the oral cavity respectively. They had about 240 cuticular striations per mm, and male had coiled tails. From the above findings, it was confirmed as T. callipaeda, and the authors report it with review of the literature.
Esophagus ; Female ; Foreign Bodies ; Humans* ; Korea ; Male ; Mouth ; Sensation ; Thelazioidea ; Young Adult

The authors report two cases of Thelazia callipaeda in Korea. The patients complained of foreign body sensation, lacrirmation, and conjunctival reaction. The first case was a 24-year-old man who had a male and a female worms in the conjunctival sac of the eye. The gross appearance of the worms was white nematode, and their microscopic measurement are as follows: 8.22mm in length, 0.29mm in width, 0.02mm in length of oral cavity, 0.48mm in length of the esophagus, 190-360 cuticular striations per mm. The second case was a 9-years-old girl from whom the authors extracted 14 mobile worms in the conjunctival sac of the eye. The worms were 5 males and 9 females. Morphologic features are as follows; average length of the male and female 11mm and 16mm, 0.30mm and 0.29mm of width, 0.60mm and 0.64mm of the esophagus, 0.026mm and 0.03mm of the oral cavity respectively. They had about 240 cuticular striations per mm, and male had coiled tails. From the above findings, it was confirmed as T. callipaeda, and the authors report it with review of the literature.
Esophagus ; Female ; Foreign Bodies ; Humans* ; Korea ; Male ; Mouth ; Sensation ; Thelazioidea ; Young Adult

PURPOSE: To report one case involving Thelazia callipaeda subconjunctival infestation. CASE SUMMARY: A 52-year-old man came in with left eye discomfort that started about a month prior to hospital visit. Slit lamp examination identified a live white translucent parasite about 10 mm in length and about 0.3 mm in width moving under the lower left eye subconjunctiva. No other abnormal findings were found in the front or fundus. An incision of about 5 mm in the conjunctiva where the parasite was located was carried out, and after opening the area, the parasite was slowly pulled out using a clamp. Then, the bottom of the conjunctiva was washed with normal saline. Further, five additional parasites were found in the conjunctival sac and were removed. The parasite was identified as Thelazia callipaeda, and through outpatient follow-up for 1 month after removal, additional parasites were not found. CONCLUSION: The authors report this case of intraocular Thelazia callipaeda infestation because it is not known to be common; however, the authors witnessed a number of parasites in the conjunctival fornix, as well as Thelazia callipaeda in the subconjuctiva.
Conjunctiva ; Follow-Up Studies ; Humans ; Lacrimal Apparatus ; Middle Aged ; Outpatients ; Parasites ; Slit Lamp ; Thelazioidea

PURPOSE: We report a case of intraocular Thelazia callipaeda infestation in a patient with panuveitis who had a successful recovery after pars plana vitrectomy. METHODS: A 73-year-old female patients complained of a floating sensation and gradually decreasing visual acuity in her right eye. On slit lamp examination, severe intraocular inflammatory reaction was observed. Fundus examination revealed severe vitreous haze with mobile linear structure. Three-port pars plana vitrectomy was performed and then the worm was removed. RESULTS: The worm was confirmed to be Thelazia callipaeda. At postoperative 2 months, the patient's visual acuity was 0.6 and intraocular pressure 14 mmHg. There was no evidence of intraocular inflammatory reaction. CONCLUSIONS: Thelazia callipaeda usually lie in the conjunctival sac or lacrimal apparatus, causing ocular surface disease, but intraocular infestation rarely occurs. If intraocular infestation does occur, early surgical removal should be performed.
Aged ; Female ; Humans ; Intraocular Pressure ; Lacrimal Apparatus ; Panuveitis ; Sensation ; Thelazioidea ; Visual Acuity ; Vitrectomy

PURPOSE: To report a relapsed case of an intra-conjunctival Thelazia callipaeda infestation within one month. CASE SUMMARY: A 59-year-old female patient presented with symptoms of itching and a sense of foreign substance in her left eye, which she had been experiencing for several days. Conjunctival hyperemia and follicle multiplication along with ten actively moving worms were identified and were extracted with forceps. The symptoms disappeared until 25 days later, when they recurred and five additional worms were extracted. All of the extracted worms were confirmed to be Thelazia Callipaeda and the patient's symptoms disappeared after the final extraction. CONCLUSIONS: More than one month of follow-up observation is required for human infection by Thelazia Callipaeda due to the post-extraction growth of the larva.
Eye ; Female ; Humans ; Hyperemia ; Larva ; Middle Aged ; Pruritus ; Surgical Instruments ; Thelazioidea

The authors preEented the 6th human thelaziasis case in Korea with the review of the literatures. The patient was 18 years old high-school girl who had lived in Seoul since birth. She experienced epiphora and moving foreign body Eensation of the right eye since one week prior to examination, and extracted 2 living worms from the right eye by herEelf on 1 and 2 days prior to examination. Morphological features of an extracted worm are as follows; Gross appearance of the worm is slender milky, white nematode, and microscopic measurements are 12.51mm in length. 0.34mm in maximum width, 15.5micro in depth of oral cavity, 0.667mm in length of the esophagus, 180~220 cuticular striations per mm, anal-opening on 0.088 mm from posterior end, and vulvar-opening on 0.544mm from anterior end. From the above findings it was confirmed as female worm of Thelazia callipaeda Railliet and Henry 1910.
Adolescent ; Esophagus ; Female ; Foreign Bodies ; Humans* ; Korea ; Lacrimal Apparatus Diseases ; Mouth ; Parturition ; Seoul ; Thelazioidea