2nd August 2023

A 43 year old immigrant from the Democratic Republic of Congo presents to the eye clinic with a worsening vision

A 43 year old immigrant from the Democratic Republic of Congo presents to the eye clinic with a worsening vision for the past 6 months. He also complains of widespread itchiness and “bumps” all across his limbs. On examination, his visual acuity is 6/60 bilaterally, and there are widespread erythematous subcutaneous nodules across his skin. Skin snips are taken, which reveal microfilariae.

What is the most likely cause?

Select the SINGLE most appropriate option from the list below. Select ONE option only.