optician with chart

bespectacled bifocals blind blindness blindside bosseyed cataract chart colourblind conjunctivities contact corrective crosseyed defect dim disorder dispensing double eye eyeglasses eyesight eyestrain farsighted foureyes glasses impairment lens longsighted nearsighted night oculist ophthalmologist ophthalmology optic optical optician optics optometrist optometry partially poor problem reading see seeing shortsighted side sighted sightedness sightless snow spectacles squint squinter squinteyed squintiness squinting squintingly squintness squinty tunnel twentytwenty vision visual