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Glaucoma is an eye condition characterized by increased intraocular pressure that damages the retina and optic nerve, leading to irreversible blindness if left untreated. The human eye has various components, including the cornea, iris, pupil, lens, and optic nerve. Aqueous humor is secreted by the epithelium of the ciliary body in the posterior chamber and flows through the trabecular meshwork and canal of Schlemm, maintaining normal intraocular pressure. The trabecular meshwork and the canal...

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Related Experiment Video

Updated: Oct 2, 2025

A Laser-induced Mouse Model of Chronic Ocular Hypertension to Characterize Visual Defects

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Published on: August 14, 2013

Human Ocular Thelaziasis: A Case Report.

Anjila Pal¹, Alok Atreya², Nabina Maharjan¹

¹Department of Microbiology, Lumbini Medical College, Palpa, Nepal.

JNMA; Journal of the Nepal Medical Association

|February 24, 2022

Summary

This summary is machine-generated.

Human ocular thelaziasis, a rare zoonotic eye infection caused by Thelazia nematodes, was diagnosed in a child in Nepal. Four worms were removed from the affected eye, highlighting the disease

Keywords:

Nepal; ocular infection; Thelazia; zoonoses.

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Area of Science:

Veterinary Ophthalmology
Parasitology
Public Health

Background:

Thelaziasis is a zoonotic parasitic eye disease affecting carnivores, caused by Thelazia nematodes.
Transmission to humans occurs via secretophagous flies (Drosophilidae), particularly in rural areas with close human-animal proximity.
Human ocular thelaziasis is exceptionally rare, often associated with specific socio-economic and geographic factors.

Observation:

A 1.5-year-old child presented with a visible whitish, thread-like worm in the right eye.
The patient resided in a rural area of Palpa, Nepal.

Findings:

Four gravid female Thelazia species nematodes were mechanically removed from the child's right eye.
The case represents a rare instance of human ocular thelaziasis in Nepal.

Implications:

This case underscores the potential for zoonotic transmission of Thelazia to humans, even in rare instances.
Highlights the importance of ophthalmological awareness in rural endemic areas for early diagnosis and treatment.
Further research into the epidemiology and transmission dynamics of Thelazia in Nepal is warranted.