A rare case of ocular onchocerciasis in India.
Onchocerca volvulus is a spirurid nematode that mainly affects the rural poor of Sub-Saharan Africa, Yemen and parts of Central and South Africa. River blindness, caused by Onchocerca volvulus, is considered to be the second commonest infectious cause of blindness worldwide. We report a rare case of ocular onchocerciasis where a live adult worm was extracted from the eye of a patient from a nonendemic region. The worm was identified as Onchocerca volvulus based on morphological features. The patient was treated with Ivermectin (0.2 mg/kg). At six months follow-up she had complete remission of symptoms.

Key facts

  • Onchocerciasis, commonly known as “river blindness”, is caused by the parasitic worm Onchocerca volvulus.
  • It is transmitted to humans through exposure to repeated bites of infected blackflies of the genus Simulium.
  • Symptoms include severe itching, disfiguring skin conditions, and visual impairment, including permanent blindness.
    More than 99% of infected people live in 31 African countries.
  • The disease also exists in some foci in Latin America and Yemen.
  • Community-directed treatment with ivermectin is the core strategy to eliminate onchocerciasis in Africa. In the Americas the strategy is biannual large-scale treatment with ivermectin.
    In July 2016, Guatemala became the fourth country in the world after Colombia (2013), Ecuador (2014), and Mexico (2015) to be verified free of onchocerciasis after successfully implementing elimination activities for decades.
  • Onchocerciasis – or “river blindness” – is a parasitic disease caused by the filarial worm Onchocerca volvulus transmitted by repeated bites of infected blackflies (Simulium spp.). These blackflies breed in fast-flowing rivers and streams, mostly in remote villages located near fertile land where people rely on agriculture.

In the human body, the adult worms produce embryonic larvae (microfilariae) that migrate to the skin, eyes and other organs. When a female blackfly bites an infected person during a blood meal, it also ingests microfilariae which develop further in the blackfly and are then transmitted to the next human host during subsequent bites.

We plan to do einterviews with MBBS doctors to understand 4 things
1) Tests or questions you ask in first few meetings
2) What it means in medical terms
3) What it means in non medical terms
4) What should the patient or care takers do

We might interview Aurvedic doctors, homeopathic doctors, Yoga teachers on this health issue

Video links
River Blindness (Onchocerciasis)

What Is The Vector Of Onchocerciasis Or River Blindness?

Onchocerciasis (River Blindness) Life Cycle NTDs

River Blindness (onchocerciasis) Documentary
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