Researchers have found that regularly smoking marijuana can increase the risk for vision problems.
Although the study French researchers conducted was rather small – only 52 study participants and only 28 of them used marijuana regularly – they found that in regular users, the cells in a part of the eye and vision known as the retina took a longer amount of time to transmit information to other sections of the eye responsible for seeing objects.
Writing in JAMA Ophthalmology, they noted that this delay might account for the altered vision in people that smoke marijuana often.
“Our findings may be important from a public health perspective since they could highlight the neurotoxic effects of cannabis use on the central nervous system as a result of how it affects retinal processing,” the authors wrote.
