There are various types of lasers which are used for hair removal. Lasers use light energy to deliver energy to the hair follicles so that the hair will not regrow. The eyeshields are placed so as to not obtain energy to the eye. The lasers will vary in the wavelength of light used and depending on the wavelength, some lasers may affect the front surface of the eye, the cornea while others may cause damage to the back, the retina. Twitching of the eyes is usually a muscular spasm. When you see the eye doctor, make sure to tell him/her about the type of vision loss, it is for the distance or for close up, and the type of laser used.
Sandy T. Feldman, M.D., M.S.
ClearView Eye and Laser Medical Center
San Diego, California