When can I fly after SLT laser treatment?

Unlike surgeries that place a gas bubble in the eye, SLT does not involve anything inside the eye that expands with altitude. The Glaucoma Research Foundation describes SLT as a short outpatient laser applied to the eye's drainage tissue, and says people can generally resume their normal routine the next day after laser surgery. BrightFocus Foundation says laser surgery does not require hospitalization or any change in daily activities.

To be clear about what is and is not sourced here. The cited sources do not mention air travel after SLT at all, in either direction. The reasonable reading is that no special flight restriction is described, not that a source has affirmatively cleared you to fly. That distinction matters, so ask your ophthalmologist before booking anything close to your procedure date.

The real scheduling issue is follow-up, not the flight. The Glaucoma Research Foundation says most patients are scheduled for a return visit within a few weeks to re-evaluate, and the American Academy of Ophthalmology notes that at three months more treatment may be needed if pressure is still too high. A long trip that causes you to skip a pressure check is the bigger problem.