The #1 Eye Drops for Bloodshot Eyes

Apart from a funky smell and a trail of munchies, what’s the most obvious tell if someone is high? Well, like most know, it’s all in the eyes. That’s what makes eye drops such a handy sidekick for any smoker. Most eye drops conveniently fit in your pocket and do the trick in a minute.

When cannabis is consumed, a decrease in inner-eye pressure occurs. This allows room for blood vessels and capillaries within the eye to dilate. Blood comes rushing in, and your eyes swell up like stoplights. Here’s a look at some of the best eye drops when high:



A mainstay in the cannabis culture, Visine has been helping smokers remain discrete and inconspicuous for years. After 10 seconds and a slight burn, those cherried-eyes turn snow-white.

This rollercoaster of benefits is all due in fact to the three moisturizers (Dextran, Polyethylene Glycol, Povidone) present in this Visine product.

Lubricants such as those three moisturizers are often touted in the optical world as “artificial tears.” That’s because the number one goal of lubricants is to fill in the void within the eye left behind the lack of tears lying in the ducts.

Keep in mind that while lubricants act as artificial tears, they are not the real thing. Real tears contain a litany of vitamins, nutrients, and other antibodies necessary for the body (and eyes) to function optimally. Therefore, if your dry eyes have less to do with marijuana and more to do with a much more serious underlying condition, cease using these lubricants. In the long-term, they may do more harm than good to your eyes.

Clear Eyes

This brand of eye drops has been a go-to for cannabis connoisseurs. In terms of accessibility, Clear Eyes can be found in most corner stores and supermarkets and is often times considered one of the best eye drops for high eyes.

Clear Eyes will get the redness out, but it’s not a miracle worker. When it is all said and done, your eyes will still look a bit glassy. So, anyone trying to stare deep into the depths of your soul might be able to call you out (if that is something that concerns you). The only other potential side effect of Clear Eyes, is that it might do the opposite of what you desire at first. In some cases (such as how much you’ve smoked or the pollen content in the air), adding Clear Eyes to red eyes can make them a bit redder at first drop. However as the old saying goes, sometimes it’s got to get worse before it gets better. Even if the eyes momentarily get a darker shade of red, they will go away in a few minutes.



Billed as the “Cool Redness Reliever”, this special edition of Rohtos offers enhanced irritation relief, specifically for extremely sensitive and dry eyes. This is a long-lasting eye drop that not only works after a smoke session but helps fight off the reds if you smoke again a little later. What makes the Rohoto so effective is that it stays true to the cooling tagline.

Each drop is a refreshing cool wave over a bubbling volcano. What adds to the soothing nature of these drops is the consistency of the drop. It has a thicker, lubricant-like coating. Unlike other eye drops that feels like you are waterboarding your eyes, this particular Rohto actually coats your eyes as it nourishes the irritated pupils. Within five minutes, the itchiness and dry feelings start to subside. This relief can last upwards of 12 hours.

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Similasan Dry Eye Relief

In terms of gentleness, Similasan Dry Eye Relief handles your red eyes with care. One of the things that stands out about Similasan is that it is made of all-natural ingredients. This is ideal for the chain-smoker who needs to apply eye drops multiple times a day.

Constantly adding synthetic ingredients to your eye may lead to long-term damage to either your eyes or your overall health. Seeing as Similasan only uses ingredients that are certified as homeopathic, adverse reactions to these eye drops are few and far in between.

The worst quality of these eye drops is the twist-off cap. There’s something off about the threading inside the cap that causes it not to secure tightly around the top after repeated uses.

Due to this glaring manufacturer mistake, the eye drops are prone to spilling if they happen to get knocked over. The drops themselves come out a bit faster than the Rohto, but you have plenty of breathing room in between drops that you won’t find using the Clear Eyes. That’s because the tube that the eye drop comes out of is contoured in a way that makes it easier to control each squeeze.

How Do Eye Drops Work?


Seeing as the cannabinoids within marijuana causes a drop in eye pressure, eye drops need to step in to pick up the slack.

Most eye drops contain the active ingredient tetrahydrozoline hydrochloride.

The function of this chemical is to constrict the blood vessels in the eye by narrowing the pathways that have filled up with blood.

Compounds in eye drops do this by stimulating the eyes’ alpha-adrenergic receptors.

In turn, this action decreases congestion in the nasal and ophthalmic passages.

This causes the redness to subside and your eyes to return to their natural color.

Be Careful When Trying New Eye Drops

When picking an eye drop to cover up your cannabis-use, you want to make sure that your eyes don’t have an adverse reaction.

Try placing just one drop into one eye first and see how you react.

Also, some eye drops may feel too cold in your eyes, while others may feel too hot.

With time, and a little trial and error, you will decide which eye drops you prefer.

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