The image of red eyes after cannabis use is well-known but there is also cannabis for eye health.

The cannabis compounds make use of the cell's communication system known as the endocannabinoid systems (ECS) which interacts with receptors in cells at the level of the eye.

The eye and the ECSThe human eye has high levels of the receptor for the chemical cannabinoid CB1 that forms part that of the central nervous system in our body, both central and peripheral.

A few preclinical studies have claimed that the network plays an essential role as when our perspective is related.

A study conducted with primates and released in Neural Plasticity discovered an intriguing discovery that, by changing the interaction with ECS receptors the researchers observed a shift within the waveforms recorded in an electroretinogram.

The recording and measurement of these waves is the expressions of the eye's electrical response to a stimuli with light, in which researchers have discovered that these receptors exerted an influence on the way the eye responds to light.

Although the way in which cannabis affects vision, through its interaction with the ECS, requires more research, the changes seen after the use of cannabis are like this:

Red-eye


This can be a reliable indicator of the use of marijuana is because of the reduction of intraocular pressure induced by cannabis, which triggers an increase in the vasodilation within the ocular capillaries. This can cause visible redness.

This side effect could be helpful for people suffering with increased intraocular pressure which is common with the glaucoma condition.


Night vision improved


Some findings have suggested that some compounds such as tetrahydrocannabinol (THC) may bind to ECS receptors and cause this night vision enhancing effect.

It's been nearly over three decades of that there has been speculation on the effects of cannabis. In 1990, a pharmacologist discovered that fishermen from Jamaica who took a cannabis product had the "extraordinary ability to see in the dark," according to his words.

An investigation conducted in 2004 by three Moroccan people who consumed the traditional Kif which is a mix of tobacco and cannabis, revealed a correlation that was dependent on the dosage of marijuana taken and also on the improvement in night vision.

Visual information processing


The evidence has revealed an interesting discovery: the endocannabinoid system collaborates in the formation of visual perception at the brain level.

This was evident in a joint study between the University of Waterloo, the University of Auckland, and Brown University, whose tests were designed to measure visual processing among babies who had exposure to cannabis at birth were significantly higher than those of babies whose mothers drank alcohol.

Allergy reactions


This is a reaction that some marijuana smokers experience. The reaction could be triggered due to the substances in the smoke or substances that are present in the plant.

The typical clinical manifestations are Redness, tearing that can vary in degrees, itching, and dry eyes. These signs and symptoms that are related to cannabis allergy have been shown as similar to hay-fever symptoms in people who have been exposed to smoke, plant matter and pollen, which are the main allergies in this condition, According to American College of Allergy, Asthma, and Immunology.

Cannabis and eye diseases


The evidence supports the possibility that cannabis may be effective in the treatment of some conditions that affect the eyes:

* Glaucoma


The seriousness of glaucoma can be not to be denied, as, aside from the discomfort, it can cause decrease in the strength of the optic nerve that can eventually lead to blindness.

Researchers are studying and studying how marijuana affects on the development of this disease in the late 1970s. A study was conducted with 16 people, whom the inhalation of this herb decreased intraocular pressure. This effect resulted in relief lasting for 3-4 hours.

Further research, conducted in the 1980s and in the 2000s may prove the reliability of these results.

* Neurodegenerative blindness


Research conducted in the year 2014 which was published in Experimental Eye Research published in 2014, revealed evidence to suggest that cannabis-derived compounds may prevent degeneration of photoreceptors as well as death in inherited retinitis glaucoma.

In this experiment, rats were treated with synthetic cannabinoid for 90 days. Following that, they were evaluated to see their changes. These rats were found to have 40 percent more photoreceptors, compared with the group that was untreated. This amazing research could be used as the basis for cannabis-based treatments designed to lessen the impact of this degenerative disease.

* Diabetic retinopathy


The diabetic retinopathy is recognized as one of the major consequences of the disease diabetes mellitus, which can cause blindness, even for those who have decompensated with blood sugar levels.

A preliminary study that was conducted in 2006 found it possible that cannabidiol (CBD) could have an ocular protective effect in diabetics thanks to its strong antioxidant effect that would serve as a form of prevention against vascular and retinal degeneration.

However, another study revealed that long-term use of this herb may be associated with retinal damage, the way of use, and the components that can cause this harmful effect would have to be analyzed.

Final Thoughts on Using CBD-Rich Alternatives


Glaucoma is among the conditions that is treated best with solutions that contain CBD from these strains of medicinal cannabis, so they could be a beneficial treatment for those suffering from this condition.


Unfortunately, at present there is no cure for glaucoma however, there are ways of combining CBD along with conventional medicines, this can result in a more efficient treatment plan or , in certain instances, avoiding surgery. Cannabinoids are marketed as a viable alternative to current treatments based solely on anti-hypertensive substances with a single ingredient. However, there is also the possibility of developing tolerance to this type of molecule, and it can be advantageous, provided that the tolerance is only due to unwanted adverse effects (eg psychological effects). Recently, development has been made in the utilization of microemulsions and cyclodextrins in order to reduce the barriers to an ocular penetration when applied topically cannabinoids.

It is possible that the antioxidant power of cannabinoids can be beneficial to patients suffering from Age-Related Macular Disease and could be a viable alternative to established antioxidant supplements.

Research conducted in other regions suggest that the high levels of powerful antioxidants having neuroprotective benefits found in cannabis plants could be beneficial in other aging-related processes, beyond visual acuity problems. To take it into consideration as the years pass through.

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