“…1e3,6e8,11e13, 15,16,19e21,26e28, 30,32,33,35,39,40,43,44,46,47,50,54e58,61,62,65,66,69e72,74,75,78,82e85,89e91,93, 95,96,98,104,108,110,111,119,121,123,124 In 1 study, all participants had infantile nystagmus, 51 and in 1 study, they all had glaucoma. 73 As is often the case in studies involving children, there was a large variation in the diagnoses or causes of visual impairment, but albinism, nystagmus, and retinopathy of prematurity were commonly reported. Remarkably, 17 studies reported that participants had visual impairment, without providing cutoff criteria for visual acuity or information about the degree of visual impairment, nor providing information about the diagnoses of participants.…”