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Regular Marijuana Use May Damage Eyesight

 

By Jonathan Block

December 8, 2016

Regular Marijuana Use May Damage Eyesight

Researchers have found that regularly smoking cannabis 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 cannabis regularly – they found that in regular users, the cells in a part of the eye 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.

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“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.

Jonathan Block

Jonathan Block

Jonathan Block is MedShadow’s content editor. He has previously worked for Psychiatry Advisor, Modern Healthcare, Health Reform Week and The Pink Sheet.

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Last updated: December 8, 2016