Bloodshot Eyes

Most people get bloodshot eyes from time to time. Find out about potential causes, treatment, and when to get help.

Book an appointment

What are Bloodshot Eyes?

A bloodshot eye is when the tiny red veins in the white part of your eye become much more visible. Normally, the whites of your eyes (called the sclera) look mostly white, though you might see some faint pink lines. But if the blood vessels expand or burst, they stand out more.

What are the symptoms of Bloodshot Eyes?

A red, bloodshot eye normally occurs when the blood vessels on the surface of the eye (the conjunctiva) expand. If the redness occurs in small, localised areas or spots, this may be due to an injury. If the redness is spread across a larger area of the eye, this might be caused by infection, allergy, or simply tiredness. 

While redness is the most obvious sign that your eye is bloodshot, it may not be the only symptom that you have. Depending on the cause of your condition, you may also experience other symptoms. Let’s look at some of the most common ones: 

  • Redness: The white of one or both eyes turns red or pink, either in a certain spot or all over. You may also notice visible red veins in your eyes. 

  • Eye pain: A painful, bloodshot eye can range from minor soreness to severe discomfort. 

  • Itchy Eye: Feeling like you need to scratch your eye or eyelid to ease discomfort. 

  • Puffy Eye: Your eyelid may feel puffy or tight, making it hard to open your eye and impacting your vision. 

  • Grittiness: Feeling like there’s something in your eye, even if you can’t visibly see anything in it. 

  • Watery eyes: Where your eyes produce excess tears, commonly caused by dryness, irritation, or blocked tear ducts. 

  • Photophobia: Your eyes might feel more sensitive to bright light than usual.

An optician delivers an eye test to a customer

Do these symptoms sound familiar?

If you have experienced any of the symptoms mentioned above it's worth booking an appointment with one of our optometrists.

What causes Bloodshot Eyes?

Bloodshot eyes can have several causes. Here are three common types.

  1. Minor:

    Usually nothing to worry about. A bit of rest, some home care, or a quick chat with your optometrist should sort it.

  2. Needs attention soon:

    Not an emergency, but you should try to see an optometrist within 24 hours. 

  3. Emergency:

    Get help straight away. Call 112 or 999 or go to your local ED. If it’s not urgent but still worrying, visit or call your GP for advice.

How are Bloodshot Eyes treated?

Having a red eye is a symptom of many different kinds of conditions. Each condition has its own treatment, so it's always best to get an optometrist's opinion when deciding how to treat a bloodshot eye. Your optometrist might recommend some of the following treatments after they've diagnosed the underlying cause. 

Mild bloodshot eyes 

Red eye can often be treated with home remedies and over‑the‑counter medication.

  1. Eye drops: Over‑the‑counter eye drops can be used to lubricate dry eyes and soothe irritation. 

  2. Cold compresses: Gently pressing a cold compress over your eyelids may help to reduce inflammation and redness, particularly if you’re suffering as a result of allergies like hay fever, where the eyes can become itchy. 

  3. Allergy medication: If an allergic reaction is causing your red eyes, taking antihistamine medication can help to reduce your discomfort. 

  4. Rest and lifestyle changes: Red eyes may go away on their own with rest. If your bloodshot eyes are linked to lifestyle, such as regular drinking, you might want to change your habits. 

  5. Screen time: You can reduce digital eye strain by following the 20‑20‑20 rule. Take a break of at least 20 seconds, every 20 minutes, and look 20 feet away. 

Non‑urgent bloodshot eye treatment 

If your bloodshot eyes are caused by an underlying medical condition, your optometrist will recommend tr

eatment based on the cause. For bacterial or viral infections, antimicrobial eye drops may be used. In some cases, you might be referred for steroid eye drops to help ease pain and reduce inflammation. 

Emergency bloodshot eye treatments 

If your bloodshot eye is very painful, bleeding, making you feel sick, affecting your vision or giving you a bad headache, you’ll need emergency medical care. Treatment will depend on the cause. You might be given lubricating or antibiotic eye drops or referred for steroid treatment if needed. In more serious cases, like an aneurysm, emergency surgery may be required. After the immediate issue is treated, you may also be referred to a specialist eye clinic for follow‑up care. 

Book an eye test

Can Bloodshot Eyes be prevented?

Getting a bloodshot eye is unpleasant. While it's normally not serious, it can feel worrying. Here are some simple ideas for avoiding getting bloodshot eyes. 

  • Good hygiene: Most people touch or rub their eyes much more than they realise ‑ so it's always good to wash your hands with soap often, especially when you've been outside or on public transport. Always wash your hands when changing contact lenses. 

  • Drink plenty of water: Getting enough water is as important to our eye health as it is to almost every other part of our bodies. Dehydration can lead to decreased tear production and irritation, so be sure to keep well‑hydrated throughout the day. 

  • Rest: Give your eyes plenty of rest ‑ aim to sleep 7‑9 hours per night. And try and remember to blink ‑ especially when using a screen or driving. 

  • Manage screen time: Try to reduce screen time, or follow the 20‑20‑20 rule. 

  • Wear protection: Use safety glasses or goggles when gardening, doing DIY, or if you work in a job where small objects might fly through the air. 

  • Antihistamines: If your bloodshot eyes are caused by mild allergies, stock up on over‑the‑counter antihistamines. 

  • Eye tests: Having regular eye examinations will help to identify any eye strain issues and other eye conditions that might be irritating your eyes.

Bloodshot Eyes FAQs:

Written by our experts for peace of mind

https://images.ctfassets.net/zcryw81f0g1x/5mrcuMDlru21b9LMMuIQn7/34dcf1c5e9fe3ed41c4ea4077537d61f/Ross_Campbell_Northallerton.jpg

Ross Campbell

BSc Hons MCOptom Prof Cert Glauc Prof Cert Med Ret

Ross is an experienced optometrist having graduated in 2007 from Bradford University. He is also ophthalmic director of Specsavers Swaledale with Northallerton & Thirsk, a pre‑registration supervisor, professional advancement consultant, and a WOPEC Lead Assessor. He has previously worked as Director of Optometry Advancement for Specsavers and as a columnist for Optician & ProFile magazine.

Related conditions

Not sure if this is what you’re experiencing? Explore some related conditions:

  • Eye Pain

    There are different types of eye pain including sharp, stabbing, throbbing or dull pain ‑ knowing what type can help determine the cause and how to treat it.

    Find out more
  • Itchy Eye

    Itchy eyes are very common and can be quite uncomfortable. It can often be a symptom of certain eye conditions and allergies.

    Find out more
  • Swollen Eye

    Swollen or puffy eyelids can be caused by a number of things. Find out what you can do to relieve your symptoms, as well as when to seek help.

    Find out more

Find out more about eye care services