Table 2

 Presenting symptoms, signs, and visual acuity

SymptomsPatients
No%BCVA* (mean (SE))
*BCVA, best corrected visual acuity of affected eyes.
None8029.00.30 (0.1)
Tearing, photophobia6724.30.20 (0.2)
Red eye4415.90.80 (0.2)
Drop of vision3312.00.40 (0.3)
“Funny behaviour”269.40.60 (0.4)
Strabismus155.40.10 (0.1)
Leukocorea114.00.05 (0.0)