I am very nearsighted causing distant objects to appear blurry!
So am I!!! Do you wear glasses?
I do.  The underlying cause is believed to be a combination of genetic and environmental facts.  I have 3 siblings who also wear glasses for nearsightedness.
That makes sense.  When was this discovered?
I'm not certain but nearsightedness also increases the risk of retinal detachment, cataracts and glaucoma.
Those seem serious.  What is Glaucoma?
Glaucoma
Glaucoma is a group of eye diseases which result in damage to the optic nerve and cause vision loss. The most common type is open-angle glaucoma with less common types including closed-angle glaucoma and normal-tension glaucoma. Open-angle glaucoma develops slowly over time and there is no pain. Peripheral vision may begin to decrease followed by central vision resulting in blindness if not treated. Closed-angle glaucoma can present gradually or suddenly. The sudden presentation may involve severe eye pain, blurred vision, mid
Near-sightedness
Near-sightedness, also known as short-sightedness and myopia, is an eye disorder where light focuses in front of, instead of on, the retina. This causes distant objects to be blurry while close objects appear normal. Other symptoms may include headaches and eye strain. Severe near-sightedness is associated with an increased risk of retinal detachment, cataracts, and glaucoma.
The underlying cause is believed to be a combination of genetic and environmental factors. Risk factors include doing work that involves focusing