Smoking Weed Daily May Eventually Lead To Vision Problems

Uh oh. Bad news for pot heads.

Scary Marijuana Side Effect: Vision Problems From Heavy Use weheartit

Smoke weed everyday? Then be prepared to get glasses, because you may end up suffering from an unfortunate marijuana side effect.

New research has suggested that bloodshot eyes are just the start of your problems if you’re using cannabis on a daily basis. 

The 52-person study, which was published in Opthalmology recently, detailed a connection between regular pot usage and slower information transmitting from the eye to the brain.


“We showed an association between regular cannabis use and a delay in the visual processing,” said Vincent Laprévote, a doctor and researcher from the study. “Our hypothesis is that regular cannabis use could slow down the transmission between retinal neural cells.”



According to the researchers on the team, there was a noted delay between neural signals from the retina back to the pot smoker’s brain. In other words, everything isn’t firing as quickly as it should be when you are a consistent marijuana smoker, which could ultimately result in a change in vision.

Laprévote also noted that this may be a long-term marijuana side effect. The 52 people participating in the study were asked to stop smoking before the tests were conducted, and the effects still managed to linger. They aren’t certain yet if this means there could also be “behavioral consequences” or how long the potential “long-term effects” may be for.

Pot is notorious for giving people a “red eye” effect after they’ve smoked it, which is probably one of the most notable marijuana side effects. However, this isn’t the first time that weed and eyesight have been correlated.

Marijuana has been long prescribed to people suffering from the awful pain of glaucoma, and in fact has the benefit of helping reduce swelling and alleviating pressure in glaucoma patient’s eyes, which can lead to vision loss and damage to the optic nerve.


It's hard to connect that marijuana can simultaneously correct and create vision problems, and there still must be further studies to determine the exact effects.

Though the research doesn’t have any significant length to it, it’s still worth noting that there could be connections between marijuana and other issues that we haven’t yet come across yet, which the researchers believe is important to determine with more states legalizing weed.