Pulsations in the eyes can be caused by blepharitis, dry eye or pink eye (conjunctivitis). Other, more serious causes for eye pulsations include Bell's palsy and multiple sclerosis, according to Mayo Clinic.
Blepharitis is caused by the inadequate functioning of the small oil glands near the base of the eyelashes. This results in eyelids that are inflamed and itchy. Although this condition is difficult to treat, it rarely causes serious problems with vision.
Eye pulsations can also occur as a result of dry eyes. Dry eyes are experienced after prolonged computer usage, or while on an airplane or in an air-conditioned room, notes Mayo Clinic. The condition occurs when a person's tears are not adequately able to keep the eyes moist.
Another cause of eye pulsations is conjunctivitis, or pink eye, which is an inflammation of the conjunctiva or membrane on the inside of the eyelid. The inflammation can be caused by an allergic reaction or a bacterial or viral infection and is highly contagious.
Eye pulsations can sometimes indicate serious conditions such as Bell's Palsy. It causes weakness in the face muscles and can make the affected side of the face droop. The eye on the affected side can twitch or tend to keep closing.