Seems to be able to convince folk about "damage." Let's leave that to doctors but if there was damage you would think the 50 years of TV use by how many hours a day would have the retirement homes full of blind folk.
Let's leave the damage discussion between doctors and patients.
The strain is usually temporary but just like you read, ask your doctor.
I see some companies like Asus are now selling laptops that have the capability to play some video games in 3d. The concept is intriguing but I wonder about the possibility of eyestrain (or worse, eye damage). I haven't had a problem watching 3d movies but the longest I've watched 3d content for is Avatar and that's a short amount of time compared to gaming sessions.
Let me know your thoughts, esp. if you already one of those 3D Asus laptops