Why Does My Eye Twitch?

There are multiple known factors that can contribute, including:

- stress
- lack of sleep or change in sleeping pattern
- low calcium levels or other electrolyte imbalances
- fatigue
- dry eyes
- caffeine
- alcohol

The medical term for eyelid twitching is Myokemia

Treatment for eyelid twitching usually involves resolving the above factors. In some rare cases, a botox injection is needed to relax the small muscles around the eye that are over-active.

Near-sightedness

• The medical term for being near-sighted is Myopia
• The term near-sighted is used simply because myopes are able to see close objects more clearly than distant objects
• The most common cause for myopia is an increase in axial length (front to back) of the eye during childhood and teenage years
• This results in images being focused in front of the retina
• Near-sightedness is easily correctable using "minus" lenses, thus a myopic person's prescription will always have a negative sign in front
  

Ex. If you consider a movie projector and screen. A myopic eye would be analogous to someone pulling the screen back so the image is out of focus.