I feel that I have a visual impairment but technically an impairment cannot be fixed with regular glasses or contacts. I can see with contacts. 
I am near sighted so I have to wear glasses to drive.
I understand. I have to wear them or contacts to eat a plate of food in front of me and see across the street, but I can see really close up perfectly. Now people sometimes include those who dont have contacts and glasses or access to them to be visually impaired as well. They are uber expensive!
Yeah my glasses costed me a little over 300 so I feel your pain.
Yes it is crazy how expensive it is just to be able to see when some people can just like..... wake up in the morning and see? Lol. Theres all kinds of varietys like you said near sighted, astigmatism, far sighted, and presbyopia.
What is presbyopia? I have never heard of that?
Oh yeah that is where the eye is progressively worsening ability to focus on close objects clearly commonly associated with aging of the eye.
That sounds terrible, people with perfect vision dont know how lucky they have it.
caused by problems in the brain due to stroke, premature birth, or trauma among others. These cases are known as cortical visual impairment. Screening for vision problems in children may improve future vision and educational achievement. Screening adults without symptoms is of uncertain benefit. Diagnosis is by an eye exam.
The World Health Organization (WHO) estimates that 80% of visual impairment is either preventable or curable with treatment. This includes cataracts, the infections river blindness and trachoma, glaucoma, diabetic retinopathy, uncorrected refractive errors,
producer with North One Television which made the film on behalf of Channel 4 said; "I have worked in specialist educational environments before, but I had almost no experience of people with a visual impairment or blindness. I wanted to make a documentary with some of the students to explore with them their daily lives. It is interesting to see what is different for them and what is the same; their experiences of daily life can be fundamentally altered by their visual impairment yet that doesn't stop them from having the same hopes