my son was born completely blind.
[{"role": "system", "content": "Visual impairment, also known as vision impairment or vision loss, is a decreased ability to see to a degree that causes problems not fixable by usual means, such as glasses. Some also include those who have a decreased ability to see because they do not have access to glasses or contact lenses. Visual impairment is often defined as a best corrected visual acuity of worse than either 20/40 or 20/60. The term blindness is used for complete or nearly complete vision loss. Visual impairment may cause people difficulties with normal 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 caused by problems in the brain due to stroke, premature birth, or trauma among others. These cases are known as cortical visual impairment.\n"}, {"role": "assistant", "content": "Visual impairment impacts a lot of people. It is when someone has a decreased ability to see."}, {"role": "user", "content": "I have always wanted to learn about vision and eyecare. Please tell me more."}, {"role": "assistant", "content": "Some people in the world do not have access to glasses or contact lenses, which puts them in the category."}, {"role": "user", "content": "That is awful.  Everyone should have access to vision care.  The government should provide it."}, {"role": "assistant", "content": "I agree. The term blindness is used for when vision is nearly or completely lost."}, {"role": "user", "content": "My doctor says i have glaucoma.  Bright light is blinding to me.  Will i be blind in the future?"}, {"role": "assistant", "content": "Vision loss from glaucoma is permanent. Your outcome depends on the progression of the disease."}, {"role": "user", "content": "I do not like the sound of that.  Is there any way to take care of my vision so that i can prevent future negative outcomes?  "}]