Myopia or Short sightedness- usually means your eyes maybe longer than normal or the cornea is steeper than normal – the eye focusing images in front of the retina without correction. Depending on the amount of shortsightedness a person has, people who are shortsighted normally have clearer vision up close and blurry distance vision.

Long sightedness or Hypermetropia / Hyperopia- usually means your eyes may be shorter than normal or the cornea is flatter than normal – the eye focusing images behind the retina without correction, Depending on the amount of long sightedness a person has, people who are longsighted normally have clearer vision at distance and out of focus for near.

Astigmatism- has to do with the shape of the cornea – simplified, the “normal” cornea is shaped like half a basketball however people with Astigmatism have corneas shaped more like a football – steeper in one direction and flatter in the other.

Presbyopia- usually affects those of 40 and above, gradually losing the ability to read things at near.