Anyone who has ever watched a 3D movie will know that playing tricks on your eyeballs and brain can cause all sorts of problems, ranging from feeling a bit squiffy to full-on migraines.
As we pointed out in our recent report, as much as 12 per cent of the population have serious issues with stereoscopic 3D images due to a common visual impairment.
And now Sony is warning that children under the age of six should steer clear of 3D games because their vision is still under development.
Alongside all of the usual stuff that people ignore about taking regular breaks and eating healthy food and getting a bit of exercise once in a while, Sony's latest legal document reads: "Some people may experience discomfort (such as eye strain, eye fatigue or nausea) while watching 3D video images or playing stereoscopic 3D games on 3D televisions. If you experience such discomfort, you should immediately discontinue use of your television until the discomfort subsides.
"SCEA recommends that all viewers take regular breaks while watching 3D video or playing stereoscopic 3D games. The length and frequency of necessary breaks may vary from person to person. Please take breaks that are long enough to allow any feelings of discomfort to subside. If symptoms persist, consult a doctor.
"The vision of young children (especially those under six years old) is still under development. SCEA recommends that you consult your doctor (such as a paediatrician or eye doctor) before allowing young children to watch 3D video images or play stereoscopic 3D games. Adults should supervise young children to ensure they follow the recommendations listed above."
We can't see many parents making an appointment with their doctor just to see if little Johnny's peepers are up to playing a bit of Motorstorm 3D, so unless you want your nippers to grow up with square eyes - which those of us of a certain age were told would happen if we watched too much of that new-fangled TV malarkey - you should keep them away from any console sporting 3D functionality.