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Cataracts Explained:
Symptoms, Causes, Surgery & When to Have an Eye Examination

Cataracts Explained: Symptoms, Causes, Surgery & When to Have an Eye Examination

Have Colours Started Looking Duller?

Imagine you’re driving home in the late afternoon.

The road is familiar, but something feels different.

The street signs don’t seem as sharp as they used to. Headlights from oncoming cars appear brighter than before, and reading the menu at your favourite café suddenly feels more difficult unless the lighting is perfect.

You might assume it’s simply part of getting older.

Sometimes it is.

But these gradual changes can also be the early signs of cataracts.

Unlike many eye conditions that appear suddenly, cataracts usually develop slowly over several years. Because the changes happen little by little, many people don’t realise how much their vision has changed until everyday tasks become more difficult.

The good news is that cataracts are highly treatable, and regular comprehensive eye examinations can often detect them long before they begin to significantly affect your quality of life.

At First Choice Vision, we provide comprehensive eye examinations for patients throughout St Albans, Sunshine, Caroline Springs, Deer Park, Keilor Downs, Sydenham, Taylors Lakes and Melbourne’s western suburbs, helping people recognise the early signs of cataracts and understand the most appropriate next steps for their eye health.

What Exactly Are Cataracts?

One of the biggest misconceptions about cataracts is that they are a growth that forms over the eye.

They aren’t.

A cataract develops inside the eye, when the natural lens gradually becomes cloudy.

When we’re young, the lens is normally clear. It allows light to pass through and focus sharply onto the retina at the back of the eye, producing crisp, colourful vision.

As we age, the proteins within the lens slowly change. Over time, these changes can make the lens lose its transparency.

Instead of light passing through cleanly, it becomes scattered, causing vision to appear:

  • Cloudy
  • Blurry
  • Less colourful
  • More sensitive to bright light
  • More difficult at night

Because cataracts usually develop gradually, the brain often adapts to these changes, making them easy to overlook in the early stages.

Patient Question

“Can cataracts affect only one eye?”

Yes. Cataracts often develop in both eyes, but it’s common for one eye to progress faster than the other. This is why vision may seem noticeably different between your two eyes.

Are Cataracts a Normal Part of Ageing?

Growing older is the most common reason people develop cataracts, but they are not an inevitable part of ageing.

Many people maintain clear lenses well into later life, while others notice cataracts developing earlier.

Several factors can increase the likelihood of developing cataracts, including:

  • Increasing age
  • Diabetes
  • Long-term corticosteroid medication
  • Smoking
  • Excessive ultraviolet (UV) exposure
  • Previous eye injury
  • Previous eye surgery
  • Certain inherited conditions

Having one or more of these risk factors doesn’t mean you’ll definitely develop cataracts, but it does highlight the importance of regular eye examinations.

Why Do Cataracts Develop So Slowly?

Unlike an infection or an injury, cataracts don’t usually appear overnight.

The proteins inside the natural lens change gradually over time, and those changes accumulate over many years.

That’s why many people say things like:

“I didn’t realise my vision had changed until I covered one eye.”

or

“I thought I just needed stronger glasses.”

This gradual progression is exactly why regular eye examinations are so valuable.

During a comprehensive eye examination, your optometrist can detect cataracts even before they begin to interfere with everyday activities.

f you’ve recently noticed blurred vision or changes in your eyesight, it’s important to remember that cataracts are only one possible cause. Other eye conditions, including glaucoma, can also affect your vision without obvious symptoms in the early stages. You can learn more in our guide Glaucoma Explained: Early Signs, Risk Factors, Diagnosis & Treatment.

How Do Cataracts Affect Your Daily Life?

One of the reasons cataracts often go unnoticed is that they don’t usually cause sudden vision loss. Instead, everyday tasks gradually become more challenging.

Many people first notice small changes, such as:

  • Needing brighter light to read
  • Difficulty driving at night
  • Glare from headlights
  • Colours looking less vibrant
  • Frequently changing their glasses prescription
  • Feeling that one eye sees more clearly than the other

Because these changes happen slowly, it’s common to assume they’re simply part of getting older. In reality, they may be early signs that a cataract is developing.

Cataract Symptoms: What Should You Look Out For?

Every person experiences cataracts differently, but some symptoms are more common than others.

Blurred or Cloudy Vision

Vision may become increasingly blurred, even when wearing the correct prescription glasses. Many people describe it as looking through a slightly foggy window.

Increased Glare

Bright sunlight, headlights and reflective surfaces may become uncomfortable, especially while driving at night.

Colours Appear Faded

Many patients are surprised to discover how much brighter colours appear after cataract surgery because they hadn’t realised how dull their vision had gradually become.

Frequent Prescription Changes

If your glasses seem to need updating more often than usual, cataracts could be contributing to these changes.

Double Vision in One Eye

Some cataracts can cause monocular double vision, meaning you see ghost images even when only one eye is open.

Patient Question

“Can new glasses fix cataracts?”

In the early stages, updating your glasses prescription may improve vision for a while. However, as cataracts continue to develop, stronger glasses eventually become less effective because the natural lens itself is becoming cloudy.

Myth vs Fact

❌ Myth:

“Cataracts grow over the eye.”

✅ Fact:

Cataracts develop inside the eye’s natural lens, not on the surface of the eye.


❌ Myth:

“Reading in dim light causes cataracts.”

✅ Fact:

There is no scientific evidence that reading in poor lighting causes cataracts. Ageing remains the most common cause.


❌ Myth:

“If I can still see reasonably well, I don’t need an eye examination.”

✅ Fact:

Cataracts can often be detected during a comprehensive eye examination long before they begin to noticeably affect daily activities.

Could It Be Something Other Than Cataracts?

Although cataracts are a common cause of blurred vision, they aren’t the only possibility.

Changes in vision can also occur because of:

  • Dry eye disease
  • Glaucoma
  • Age-related macular degeneration
  • Diabetes affecting the retina
  • Changes in your glasses prescription

This is why it’s important not to assume the cause of blurred vision without a professional eye examination. A comprehensive assessment allows your optometrist to identify the underlying cause and recommend the most appropriate management.

Blurred vision isn’t always caused by cataracts. Dry eye disease, for example, can also lead to fluctuating or blurry vision, particularly after prolonged screen use. Learn more in our guide Dry Eye Disease: Symptoms, Causes & Effective Treatment Options.

How Are Cataracts Diagnosed?

Many people assume cataracts are diagnosed only when their vision becomes very poor.

In reality, cataracts are often detected much earlier during a comprehensive eye examination, sometimes before they noticeably affect your daily life.

During your appointment, your optometrist doesn’t simply ask whether your vision is blurry. Instead, they assess both your vision and the overall health of your eyes to determine whether cataracts are present and whether they are affecting your quality of life.

This is important because not every cataract requires immediate treatment.

What Happens During a Cataract Assessment?

A comprehensive eye examination may include several assessments to help determine whether cataracts are affecting your vision.

Vision Assessment

Your optometrist will measure how clearly you can see at different distances and check whether changes to your glasses prescription improve your vision.

If updating your prescription no longer provides the expected improvement, a cataract may be contributing to your symptoms.

Examination of the Natural Lens

Using specialised equipment, your optometrist examines the natural lens inside your eye.

This allows them to determine:

  • Whether a cataract is present
  • The type of cataract
  • Its location
  • How advanced it has become
  • Whether it is likely to explain your symptoms

Overall Eye Health Assessment

Your eye examination doesn’t stop at identifying cataracts.

Your optometrist will also assess the health of the rest of your eyes to check for other conditions that may affect your vision, such as glaucoma, retinal disease or changes related to diabetes.

This ensures that any treatment recommendations are based on a complete understanding of your eye health.

Patient Question

“Can I have cataracts and another eye condition at the same time?”

Yes. It’s quite common for cataracts to occur alongside other eye conditions such as glaucoma, age-related macular degeneration or diabetic eye disease. That’s why a comprehensive eye examination is so important before making treatment decisions.

When Is Cataract Surgery Recommended?

One of the most common questions patients ask is:

“How do I know when it’s time for surgery?”

The answer is often simpler than people expect.

Cataract surgery is usually recommended when your vision begins to interfere with your everyday activities or quality of life, rather than when a cataract reaches a particular size.

For example, surgery may be considered if you begin experiencing difficulties with:

  • Driving, particularly at night
  • Reading books or medication labels
  • Watching television
  • Recognising faces clearly
  • Hobbies that require detailed vision
  • Work or daily activities

The decision is always individual. Some people choose surgery earlier because their lifestyle demands excellent vision, while others remain comfortable for longer.

What Happens During Cataract Surgery?

Modern cataract surgery is one of the most commonly performed surgical procedures worldwide and has a very high success rate.

During the procedure:

  • The cloudy natural lens is carefully removed.
  • It is replaced with a clear artificial intraocular lens (IOL).
  • The new lens remains permanently inside the eye.
  • The procedure is usually performed one eye at a time.

Your ophthalmologist will discuss the most appropriate lens options and explain what to expect before and after surgery.

Is Cataract Surgery Painful?

This is another question we hear regularly.

The procedure is generally performed using local anaesthetic, which helps keep the eye comfortable throughout the surgery.

Most people report feeling little or no pain during the operation, although they may notice some pressure or movement.

Following surgery, mild irritation or a gritty sensation is common for a short time, but significant pain is uncommon and should always be reviewed promptly.

Recovery After Cataract Surgery

Most people notice an improvement in their vision within a few days, although complete healing can take several weeks.

Your ophthalmologist will provide specific instructions, which may include:

  • Using prescribed eye drops
  • Avoiding rubbing your eye
  • Wearing an eye shield while sleeping for the first few nights
  • Avoiding heavy lifting for a short period
  • Attending follow-up appointments

Every person’s recovery is different, but many patients are pleasantly surprised by how quickly everyday activities become easier again.

 

Did You Know?

Many people say they don’t realise how much their vision had changed until after cataract surgery, when colours appear brighter and everyday details look noticeably clearer again.

A comprehensive eye examination can detect cataracts before they significantly affect your vision and can also identify other common eye conditions, including glaucoma. If you’d like to learn more, read our guide Glaucoma Explained: Early Signs, Risk Factors, Diagnosis & Treatment.

Can Cataracts Be Prevented?

One of the most common questions we hear is:

“Is there anything I can do to stop cataracts from developing?”

While cataracts cannot always be prevented, adopting healthy habits may help reduce your risk and support your long-term eye health.

Simple steps include:

  • Wearing sunglasses that provide 100% UV protection when outdoors.
  • Avoiding smoking, which has been linked to an increased risk of cataracts.
  • Managing medical conditions such as diabetes.
  • Eating a balanced diet rich in leafy green vegetables, colourful fruits and foods containing antioxidants.
  • Having regular comprehensive eye examinations, particularly as you get older.

Although these measures cannot guarantee cataracts won’t develop, they contribute to maintaining healthier eyes throughout life.

 

Patient Question

“Will using my phone or computer cause cataracts?”

No. There is currently no scientific evidence that using digital devices causes cataracts. However, prolonged screen use may contribute to symptoms of digital eye strain or dry eyes, which are separate conditions.

When Should You Book an Eye Examination?

Rather than waiting until your vision becomes significantly affected, consider arranging a comprehensive eye examination if you notice any of the following:

✅ Your vision seems cloudy or blurred.

✅ Driving at night has become more difficult.

✅ Headlights or bright lights create more glare than they used to.

✅ Colours appear dull or faded.

✅ You need brighter light for reading.

✅ Your glasses prescription seems to change more frequently.

✅ You are over 60 and haven’t had a comprehensive eye examination recently.

Early assessment allows cataracts and many other eye conditions to be identified before they begin affecting your daily life.

Why Choose First Choice Vision?

At First Choice Vision, we believe that preserving good vision starts with early detection and personalised care.

Our experienced optometrists provide comprehensive eye examinations using modern diagnostic equipment to assess your vision, identify cataracts and detect many other eye conditions before they begin to affect your quality of life.

Every patient receives an individual assessment tailored to their symptoms, lifestyle and long-term eye health goals. When cataracts require specialist care, we work closely with your GP and ophthalmologist to ensure a smooth referral and ongoing communication throughout your care.

We proudly care for patients from:

  • St Albans
  • Sunshine
  • Sunshine North
  • Sunshine West
  • Keilor
  • Keilor Downs
  • Caroline Springs
  • Taylors Lakes
  • Deer Park
  • Delahey
  • Sydenham
  • Albanvale
  • Derrimut
  • and Melbourne’s western suburbs.

FAQs

Your Most Common Questions Answered.

Can cataracts cause blindness?

If left untreated, cataracts can eventually cause significant vision loss. Fortunately, cataract surgery is highly effective for most people, and treatment is usually recommended before vision becomes severely affected.

No.

In the early stages, updating your glasses prescription or improving lighting may help manage symptoms. Surgery is generally recommended when cataracts begin affecting your daily activities or quality of life.

The procedure itself usually takes around 20–30 minutes, although you should expect to spend longer at the surgical facility for preparation and recovery.

No.

Once the cloudy natural lens has been removed, the cataract itself cannot return.

However, some people develop a clouding of the membrane behind the artificial lens (known as posterior capsule opacification), which can usually be treated quickly and effectively with a simple laser procedure performed by an ophthalmologist.

Many cataract procedures performed in Australia are eligible for Medicare benefits when clinically appropriate. Your ophthalmologist and hospital can explain any potential out-of-pocket costs based on your individual circumstances.

Trusted Resources

For further evidence-based information about cataracts, visit:

Disclaimer

The information in this article is intended for general educational purposes only and should not replace personalised advice from a qualified optometrist, ophthalmologist or other healthcare professional.

If you’ve noticed changes in your vision or are concerned about cataracts, arrange a comprehensive eye examination with your optometrist for an individual assessment.

Final Thoughts

Cataracts are a natural part of ageing for many people, but they don’t have to limit your quality of life.

The gradual changes they cause can easily be mistaken for “just getting older,” which is why regular eye examinations are so valuable. Detecting cataracts early allows you to understand your options, monitor changes over time and seek treatment when it’s most appropriate—not simply when your vision has already become significantly affected.

Whether you’ve noticed blurred vision, increased glare while driving, or colours that don’t seem as vibrant as they once did, an eye examination is the best place to start.

At First Choice Vision, we’re committed to helping patients across St Albans and Melbourne’s western suburbs protect their vision with evidence-based care, personalised advice and comprehensive eye examinations tailored to every stage of life.

Book an appointment today

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