My eye twitches constantly it is uncontrollable, and annoying. what is it? and how can i fix it?

Fasciculations: It sounds like you may be having muscle fasciculations in your eyelid. Although there are some serious neurologic disorders which can cause this symptom, muscle fasciculations are much more commonly due to a benign cause, such as over-exertion, excess caffeine or stimulant use, or benign fasciculation syndrome (bfs). You could start by trying to reduce daily stress and any excess caffeine use.

See an eye doctor: Mild twitching of the eyelid is most commonly caused by stress. The condition occurs when groups of eyelid muscle cells become over-excited and rapidly contract and relax. Although not dangerous, it can be annoying. Cool compresses, rest and time usually solve this, but it may take weeks. If the twitching is painful or causes the lids to close, see an eye doctor to rule out other causes.

Possibly dry eye: If there is eyelid twitching this is often due to tear film imbalance or commonly referred to as dry eye syndrome. The twitching may respond to application of artificial tears. If there is eyelid and facial twitching this may be due to irritation of the eyelid and facial muscles referred to as blepharospasm. If this is severe and bothersome Botox injections may be necessary.

Myokymia: You are describing myokymia - an involuntary twitching of the skin around the eyelids. It's believed to be related to lack of sleep, stress, and caffeine use. Change these risk factors and it should abate.