Table 4. Ocular anomalies not caused by Onchocerca volvulus infection in patients (n = 82) examined before ivermectin treatment, and at 4 and 23 years post initial ivermectin treatment (PIT).

	before ivermectin (in %)	4 years PIT (in %)	23 years PIT (in %)
Band-shaped keratopathy	6.1	7.3	7.3
Glaucoma	4.9	4.9	4.9
Vascular retinopathy	2.4	4.9	18.2
Pterygium conjunctivae	2.4	4.8	19.5
Suspected glaucoma by Cup/disc ≥0.5	2.4	2.4	4.9
POA (primary optic atrophy)	1.2	1.2	1.2