Why do we Get Red Eyes After Smoking WeedMost of us have experienced red eyes during allergy season but what about bloodshot eyes from consuming cannabis. It is a simple question with a complicated answer because cannabis is a complicated plant. This article will cover why you get red eyes after smoking weed and few tricks on how to get rid of it.

After smoking, you will experience an increase in heart rate and blood pressure as THC, CBD, and the unique cannabinoids of a strain interact with the body. After five to ten minutes your heart rate will slow and your blood pressure will drop, lower blood pressure means dilated capillaries which mean a warm rush of blood to the eyes. THC has been found to have the same effect on blood vessels as anandamide a naturally occurring fatty acid that binds the same receptors as THC molecules. Together they lower blood pressure and can promote a feeling of bliss. Your eyes may look fine immediately after you smoke but ten minutes later your eyes are bloodshot. A strange smoke can impact how bloodshot your eyes get because red eyes are tied to how much THC you consume you are more likely to experience a greater effect after a large dose, multiple draws, or after smoking a particularly potent strain. Also, the individual cannabinoids in each strand can impact the feeling of the high and the impact on your eyes and like we said it is not so simple.

Why do Some People Get Red Eyes While Others Don’t

Getting red eyes from smoking weed can vary from one individual to another. This can result from different factors such as overall health, genetics, sex, and frequency of consumption.

Some People are More Susceptible

THC affects some individuals more strongly than others as some people metabolize weed very quickly. Just as weed can affect different individuals mentally and physically differently it is also true for our eyes. Some people will have red eyes whenever they smoke weed while it may come and go for others.

When You Take Bigger Hits

You will have more THC in your body system if you take huge hits. So for those who consume less they may not develop red eyes after smoking weed.

Good Quality Cannabis

Fresh quality weed has a higher concentration of THC than dried, old herb. Also, buying weed from a premium store will offer you high-quality cannabis that can give you red eyes.

High THC Strains

When you have a high amount of THC in your strain you are more likely to have red eyes. If you don’t want to get red eyes after smoking weed such as when you are going for an event you can choose a lower THC strain.

You May Allergic

It is also possible the red eyes you get result from allergic reactions to marijuana or to smoke in general. You can get tested to be sure but a general sign to an allergic reaction is the reaction to all smoke, be it wood fires, marijuana, tobacco, or even incense. If you believe you are allergic to cannabis, you can stop consuming it immediately and consult with a health professional.

It is also important to note that the way we consume cannabis doesn’t really make a difference if we would get red eyes or not. It is a myth that it is only from smoking weed that we can get red eyes. You can get red eyes from all forms of consumption from vaping to edible to dabbing. This is because the factor causing red eyes stay the same – the consumption of THC.

How to Get Rid of Red Eyes

Dilated ocular vessels and lowered blood pressure are beneficial to most of us in many ways, so you should not bother about fixing the red eyes. If red eyes make you feel uncomfortable or you would like to erase the evidence, there are some ways you can minimize it.

vising eye dropsUse Eye Drops

As mentioned earlier, THC makes the blood vessels and capillaries to dilate so the eye drops can help to reverse the effect and return the eyes to its normal state. If you have an important meeting or event, you have to attend and you are stoned you can use an eye drop to minimize the red eye. Generally, eye drops are safe to use but it is a good idea to always read the manual that comes with it carefully. You can buy the kind of eye drops that are designed specifically for red eyes. You should keep some eye drop in your car, bathroom cupboard, and your purse or backpack so you can always have some handy.

eating chocolate for red eyesCoffee or Chocolate

This is a quick and effective solution to get rid of red eyes after smoking weed. Coffee and chocolate can help to constrict the dilating blood vessels and capillaries. All you need to do is just eat a bar of dark chocolate or brew a cup of strong coffee.

low THC cannabisGo for High CBD/Low THC Strain

Strains high in THC will help to potentiate the bloodshot eye effect. Strains with high levels of CBD will help to reduce the redness after you smoke weed. Some cannabis strains high in CBD but low in THC include Harlequin, Ringo’s Gift, ACDC, Stephen Hawking Kush, Harle-Tsu, Canna-tonic, and Canna-Tsu.

Drink More Water

Drinking lots of water may not have a direct effect on your red eyes but it can help to reduce the dryness. You can also drink a cup of freshly squeezed citrus juice if you want to quench the thirst from the cottonmouth.

Wait Until the Red Eyes is GoneWait Until the Red Eyes is Gone

Red eyes won’t last for too long if you are not as a high as a ‘plane’. Typically, the effect should disappear after a couple of hours. In cases when you have just experienced the darkest scenario, a little bit of patience and a dash of common sense will be your best option.


There have been limited studies conducted on this particular subject but tests on humans and animals have shown consistent results relating to blood pressure. This is the main reason that cannabis is so effective at treating pressure buildup in the ocular cavities for ailments like glaucoma. It doesn’t matter if you are using edibles, tinctures, flour or any other form of cannabis you won’t avoid the bloodshot without the help of some eye drops.