Everyone in my family has bad vision. I've been wearing glasses since I was five.
I see, well visual impairment occurs when there are significant issues with vision that can't be fixed with glasses.
Is there any other way it can be fixed?
daily activities such as driving, reading, socializing, and walking.
The most common causes of visual impairment globally are uncorrected refractive errors (43%), cataracts (33%), and glaucoma (2%). Refractive errors include near sighted, far sighted, presbyopia, and astigmatism. Cataracts are the most common cause of blindness. Other disorders that may cause visual problems include age related macular degeneration, diabetic retinopathy, corneal clouding, childhood blindness, and a number of infections. Visual impairment can also be
acutely conscious of variations in visual functioning as are those with bad seeing habits and impaired eyes. These last have little or no margin of safety; consequently any diminution in seeing power produces noticeable and often distressing results.
Huxley goes on to discuss the factors which bring about variation – general health or lack of it, tiredness, boredom, emotional states. But whereas these are in general transitory, glasses, if worn, are to a fixed prescription.It will thus be seen that the wearing of spectacles confines the eyes