Cloudy Vision

There are many reasons you might be experiencing cloudy eyesight. Learn about common symptoms and causes of cloudy vision.

Understanding your cloudy vision

Have you noticed cloudy or hazy vision? Any change to your sight can feel pretty alarming. This guide will give you an overview of the main potential causes of cloudy vision. Your optometrist (sometimes still called an optician) will be able to spot signs of cloudy vision during an eye test.

Different kinds of cloudy vision

Does your vision seem cloudy? There are a few different ways people experience cloudy eye vision. Some people get sudden cloudy vision in one eye, while for others it affects both. For some people, hazy eyesight lasts a few minutes, but others get it for days, or notice it gets worse over time. Whatever's causing your cloudy or foggy vision, you'll want to get to the bottom of it fast. In this guide, you'll learn about cloudy vision causes, common symptoms, and how to get help.

What is cloudy vision?

Cloudy vision' is a general term that people use to describe a change in their eyesight (you might also hear it called 'milky eye' or 'smoky vision'). It's a common symptom of several different eye and health conditions in Australia.

When you have cloudy vision, it can feel like you're looking through a piece of scratched up glass, making the world around you appear dull. Colours often seem faded when you have cloudy vision, a bit like an overexposed photo. You might also notice 'halos' appearing around lights.

Cloudy Vision vs Blurred Vision

People sometimes confuse cloudy vision and blurred vision. While they have some similarities, there are some important differences too.

  • With blurry vision, things appear less sharp, clear and defined. Hard lines may appear soft, and things seem out of focus. However, if you squint, you might notice objects become temporarily sharper. While things look less clear, colours remain the same. Blurry vision often comes on more slowly (sometimes over a few years) and usually affects both eyes. 

  • With cloudy vision, the world appears misty or foggy, and colours often appear faded. Unlike with blurred vision, squinting doesn't make things look sharper. People may experience sudden cloudy vision, or cloudy vision that comes and goes. You may only get foggy vision in one eye, but it can also affect both. 

Common symptoms of cloudy eyesight

Cloudy vision can be caused by a number of conditions. The combination of symptoms will be different depending on the underlying cause, but may include: 

Cloudy vision is normally painless. 

What does your cloudy vision look like?

Cloudy vision can affect your vision in different ways. Here are some examples: 

Foggy vision in one eye or both eyes 

Your entire field of vision from one or both eyes appears faded, cloudy or misty. Colours are muted and the world appears to be in a fog. 

One part of your vision appears cloudy 

While most of your field of vision is normal, one specific area appears cloudy or foggy. It can look a bit like a smudge on a pair of sunglasses. 

Peripheral vision is cloudy 

Your peripheral vision appears cloudy, but the main field remains normal. It might feel a bit like you're looking through a tube. 

A curtain, mist or veil 'sliding' across  

You notice sudden cloudy vision that seems to slide across your eye. 

Can cloudy or hazy eyesight be a sign of something serious? 

Yes, it can be ‑ some causes of cloudy vision require urgent medical attention, so you shouldn't  ignore foggy vision in one eye or both eyes. While most kinds of cloudy vision are not medical emergencies, it’s always best to be cautious and get it checked out by an optometrist, or a GP. 

 If your cloudy vision is accompanied by pain, vomiting, nausea, numbness or generally not feeling right, seek emergency care. 

Retinal vein occlusion

Sometimes known as an ‘eye stroke’, this is when a blockage in eye blood vessels causes fluid to accumulate in the eye and prevents blood flowing to the tissues that help with sight. If left untreated, it may lead to permanent loss of sight. One study estimated that just under 1% of Australians get retinal vein occlusion each year, and it's more common the older you are. 

Retinal detachment

The retina is a thin layer of tissue at the back of your eye that helps with sight. A detaching retina needs to be treated urgently as it can lead to vision loss. AIWH data shows about 7,000 Australians are hospitalised with a detached retina each year. 

Although cloudy vision isn’t always a sign of serious problems, it’s really worth getting it checked up by a doctor or eye specialist. That can put your mind at rest and help get to the bottom of the issue. 

Why is your vision cloudy?

There are a few conditions that can give you cloudy vision in one eye or both eyes. We'd always recommend booking an appointment with your GP or speaking to an eye doctor to get to the bottom of it. Remember, eye tests are bulk billed to Medicare*, so there are no out of pocket expenses to you for getting your cloudy vision checked out. 

Cataracts

This is when the lens inside your eye starts to become cloudy. Some 411,000 Australians have cataracts according to AIHW, and it's more common among older people (about 10% of over 65's have cataracts). 

Infections and inflammation

Infections may cause changes or damage to the cornea, which is the clear bit at the front of your eye. There are a few possible causes of eye infection, including conjunctivitis

Migraines

If you suffer from migraines, you may experience an aura before or during the migraine (sometimes known as ocular migraines). This can cause cloudiness in a certain part of your field of vision (as well as zig zags or flashes that might look a bit like lightning). 

Macular degeneration

About a quarter of a million Australians have macular degeneration, according to AIWH. The macula is the part of the eye that controls sharp vision. As you get older, the macula can become damaged, and this can cause milky central vision. 

Diabetes

This common condition can damage blood vessels in your eye (a complication known as diabetic retinopathy). This may cause cloudy vision. 

Low blood sugar (hypoglycaemia)

If you have low blood sugar (this is particularly an issue for people with diabetes), your vision may appear cloudy. 

Fuchs’ Dystrophy

This is a rare inherited condition which affects the cornea (the part of the eye that lets light in) and typically begins in middle age. An early sign of Fuchs’ Dystrophy is cloudy vision in the morning which improves over the course of the day. 

Eye trauma

Scratches or shocks to your eye could make your vision cloudy. 

Listed on a valid Medicare card without Optometry restrictions. 

Getting help for foggy vision in one eye or both

If you notice you are having cloudy, misty or smoky vision, we'd really recommend getting an eye check‑up as soon as you can. Cloudy or foggy vision can be a symptom of a few different eye conditions ‑ as well as other general health problems. Although most of the causes of cloudy vision aren't medical emergencies, some of them can be. So, it's best not to ignore any visual changes you have. 

 If you notice you have cloudy vision, our optometrists will choose from a few different tests and checks to find out what's causing the issue: 

OCT scan

Creates detailed images of the inside of your eye. 

Learn more about OCT Scans

Visual acuity test

Also known as a Snellen test. You'll be asked to read letters on a chart from a distance. 

A slit‑lamp examination

Examines the inside of your eye, including the lens and retina. 

Learn more about slit‑lamp examination

Tonometry

Measures the pressure of fluid inside the eye. 

Ophthalmoscopy

Helps the optometrist examine your retina.

Book an eye test

What the experts say about cloudy vision

Our expert optometrists see people with cloudy vision every day. Here, one of our optometrists shares what to look out for, what happens during an eye test, and how they support people with cloudy vision.

Book an eye test

Treatment options for cloudy vision 

After testing your eyes, your optometrist will suggest treatments based on the underlying cause. Here are some of the possible treatments for some of the most common causes of cloudy vision: 

Cataracts

Cataracts are usually treated with surgery, where the cloudy lens is replaced with a clear artificial lens
Learn more about cataracts

Diabetic retinopathy

Diabetic retinopathy is usually treated by trying to help you manage your diabetes more generally 
Learn more about diabetic retinopathy

Macular degeneration

Macular degeneration may be treated using injections that slow down blood vessel growth 
Learn more about macular degeneration

Dry eyes

Dry eyes are often treated with eyedrops
Learn more about dry eyes

Other causes of cloudy vision may require different kinds of treatment. 

Common questions about cloudy vision

Did you know?

Eye tests are bulk billed to Medicare, so there are no out‑of‑pocket expenses for you*.

Written with care and checked for accuracy

https://images.ctfassets.net/uuaxywrybmpn/20CooX3JMWudhhs1eaZS8k/48450e8b531c83540b393afe3cfc218f/Joseph_Paul.jpg

Dr Joseph Paul

B.Optom PhD

Dr Joseph Paul studied optometry at the University of Melbourne, graduating in 2011. He then completed a PhD in retinal structure and function at the University of Melbourne and a post‑doctoral position in optic nerve bioenergetics at the Centre for Eye Research Australia.

Alongside this work, Dr Joseph has practised in a wide range of public, private and corporate optometry practices across Victoria over the past decade. He is Head of Professional Services at Specsavers Australia and New Zealand.

Could it be something else?

There are several eye conditions that might look like cloudy vision, or which have similar symptoms.

Find out more

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