disabilities, visually impaired, blindness, dyslexia, cataracts, dyscalculia, cerebral palsy, epilepsy, paraplegia, presbyopia, nearsightedness, glaucoma, astigmatism, hemianopia, retinal detachment, retinitis pigmentosa, hemiplegia, retinopathy, profoundly deaf, deafness, amblyopia, tetraplegia, sensorineural hearing loss, macular degeneration, impairments, dementia, binocular vision, mental retardation, eyesight, esotropia, braille, dysphagia, aphasia, quadriplegia, anisometropia, expressive aphasia, generalized epilepsy, visual acuity, syringomyelia, nystagmus, dysphasia, scoliosis, neuromotor, neurological disorder, exotropia, albinism, degenerative disorder, degenerative, dysgraphia, keratitis, strabismus, prosopagnosia, blepharospasm, hyperopia, spina bifida, peripheral vision, dyslexics, visually challenged, hypopituitarism, tinnitus, diplopia, achromatopsia, assistive, keratoconus, achondroplasia, ptosis, hypotonia, kidney disease, stereopsis, trichiasis, neuropathies, amusia, neurologic, disfigurements, uveitis, spinal curvature, congenital disorder, deformity, parkinsonism, synaesthesia, disorders, osteogenesis imperfecta, sightless, diabetes, neurosensory, becker muscular dystrophy, spondylitis, spastic paralysis, neurodermatitis, macular, catatonic schizophrenia, senile dementia, myopia, undiagnosed, bifocal, mental illness, disabled, melasma, presbycusis, dysarthria, congenital anomaly, abnormalities

achromatic vision, amaurosis, amblyopia, ametropia, aniseikonia, anorthopia, aphakia, blindness, cecity, color blindness, colour blindness, day blindness, hemeralopia, metamorphopsia, moon blindness, night blindness, nyctalopia, presbyopia, sightlessness

disability, disablement, handicap, impairment

vision defect, visual defect