Successful treatment of glaucoma is the most renowned medical advantage of weed. ‘Glaucoma’ is one a degenerative disease of the optic nerve which sends visual data to the brain. Therefore, according to a research that has continued for over 30 years, it is not an unusual fact that cannabis can play a significant role in the improvement of eyesight over time. According to a study conducted by the US National Institute of Health, there has been a noticeable and increasing change in the cannabis culture in America. This research stated that the young adults have increased marijuana consumption and more states in the US are legalizing the use of marijuana.
The purpose of this research was to investigate whether there is any relationship between poor eyesight and cannabis intake. 12,686 men and women volunteered in this research from the year of 1979 to 2010. A comparative analysis was done between the heavy and the light weed smokers in order to decide whether the quality of eyesight decreased within that period or not. It was a pre-assumption of the research that smoking cannabis is connected to eye damage and can intensify age-related macular degeneration which is linked with loss of eyesight and also with an increased possibility of developing cataracts. However, the finding of the study stated that there was not any major difference in the self-confessed quality of eyesight among heavy marijuana smokers in comparison with youths who have never been exposed to marijuana or who are light marijuana users.
Moreover, a decreasing possibility of reporting a poor eyesight condition has been observed among heavy marijuana smokers. No medical or scientific conclusions have been made about the reason why heavy cannabis smoking may decrease such risks of poor eyesight. However, cannabis has been found to lower the pressure in the eye and cause a diminishing risk of optic nerve damage in case of glaucoma. Since most of the sectors in the medical industry see the effects of marijuana on glaucoma as a momentary solution, it remains as a questionable solution. A medical journal published by the American Medical Association stated in 2017 that regular cannabis use can cause dysfunction of the retinal cell being triggered by a large delay in retinal information processing. However, people can be prone to more intense retinal damage in everyday life, for example – laser pointers at the grocery store can cause the retina to burn if we look directly into the laser. Deficiencies of Vitamin A and E, eye injuries and the even ageing process can be more intense driving factors of retinal damage than smoking marijuana.
It has been found in research that cannabinoids contain neuroprotective effects which enhance eye health and minimize vision loss. Another recent research published by The National Institute of Health stated that Cannabinoids can improve retinal sensitivity and low-light vision, which can be beneficial in case of treatment of degenerative eye diseases.