One of the most common problems affecting eyesight is damage to the retina, which can be caused by old age, light damage, or trauma. Because each cause may require different treatments, it is important to know what is responsible for the damage. Studies suggest cannabis can promote retinal health because of its neuroprotective and antioxidant properties.
Both CBD and THC have neuroprotective properties that promote eye health and prevent vision loss. Their benefits as neuroprotective and antioxidant agents facilitate cell survival in the eye, and one study found CBD and THC reduce the formation of peroxynitrate, which contributes to retinal neuron damage. Another study found cannabis halts vision loss in degenerative disorders like retinitis pigmentosa. Cannabinoids also make retinal cells sensitive to light, which improves night vision. The body's endocannabinoid system regulates vasoactivity in the eyes, so cannabis' ability to stimulate receptors within this system allows it to decrease intraocular pressure which is beneficial in the treatment of glaucoma. One animal study found CBD inhibits vasoconstriction of the retina, and because cannabinoids offer vasorelaxing effects they can reduce pressure in the eyes and prevent damage.
This information has been provided by Medical Marijuana Inc. and approved by our Chief Medical Officer.