When can I read and use screens after tube shunt surgery?

The Glaucoma Research Foundation lists reading among the things to take a break from while recovering from incisional glaucoma surgery, along with driving, bending, and strenuous exercise. That is early recovery advice, not a permanent restriction.

Screens do not put pressure on the eye the way bending and lifting do. What limits you is vision. The American Academy of Ophthalmology says blurry vision after a glaucoma drainage implant lasts several days to a few weeks, which is generally shorter than after trabeculectomy.

Two practical notes. Long stretches of close work make the eye feel dry and tired, which is worse while you are on frequent drops, so break often and blink. And if you get double vision when reading, which the American Academy of Ophthalmology lists among the risks of a drainage implant, mention it at your next visit rather than working around it.