Why does my eyes hurt occasionally after doing LASIK?

Hi Susanne In the first step of the LASIK procedure, a ‘flap’ is created using a femtosecond laser (or, in the past, a special blade called a microkeratome). During this step, the laser is ‘connected’/docked to the eye with a ring-like device that grips the white part of your eye. You can watch an animation here: There are many small blood vessels on this part of the eye, and sometimes the suction pressure providing the grip may cause some of the blood vessels to leak some blood, causing red patches after the LASIK.

Punctal plugs are very effective for treating dry eyes that occur during waking hours, whether or not the situation is associated with LASIK. They help to reduce the need for eyedrops, so are very useful for people who have to use artificial tears very frequently eg instead of having to use the eyedrops every 2-3 hourly, sometimes after the plugs are placed, the eyedrops might only be needed every 4-6 hourly. As long as there is no active eye inflammation (eg persistent eye redness/discharge), punctal plugs can help anyone with moderate dry eyes requiring frequent eyedrop instillation.