A: Nearsightedness and farsightedness are both refractive errors, meaning they are both eye abnormalities that affect the eye’s ability to focus light onto the retina. Farsightedness is caused by eye shortness, causing the light to focus behind the retina. Nearsightedness occurs when light entering the eye falls short of the retina.
Farsightedness blurs close vision more than distance vision.
Nearsightedness blurs far vision but near vision is clear.