Eye Conditions

Blurry vision

Blurry vision is one of the most common reasons people see an eye specialist — and it has many possible causes, from a simple change in your glasses to something that needs treating. The important thing is to find out which.

What it is

“Blurry” can mean different things: a general haze, a patchy blur, blur that comes and goes, or blur in just part of your sight. Each points in a different direction.

Sometimes it's simply that your glasses need updating. Other times it's a sign of a cataract, a dry or irritated eye surface, or a change at the back of the eye — which is why a proper assessment matters.

The kind of blur can be a clue

A general, gradual haze over everything — often a cataract
Blur that clears when you blink — often dry eye
A blurred or missing patch in the centre — a macular concern
Blur that improves with new glasses — a refractive change
Sudden blurring — get checked promptly

Recognise these? Book a consultation and we'll help you get to the bottom of it.

When to seek help urgently

Sudden blurring of vision — especially in one eye, or with pain, flashes or a shadow — should be checked urgently, as it can signal a problem that's best treated quickly.

What causes it

Common causes include an out-of-date glasses prescription, cataracts, dry eye, and changes at the retina or macula.

Less commonly, blur can come from diabetes, inflammation or other medical conditions — a specialist assessment tells them apart.

How we help

Dr Leong will examine your eyes and use imaging where needed to pin down exactly what's blurring your sight, then explain your options clearly.

A thorough assessment is the fastest route to the right treatment — and to ruling out anything that needs prompt attention.

Explore General Ophthalmology

Common questions

Is blurry vision serious?

Often it's something straightforward like needing new glasses — but because it can also be a sign of a cataract or a retinal problem, it's worth having checked, especially if it's new, getting worse, or in one eye.

Could I just need new glasses?

Quite possibly — a refractive change is one of the most common causes of blur. An assessment confirms whether glasses are the answer or whether something else is going on.

Why is my vision blurry in only one eye?

Blur in a single eye is worth taking seriously, as it can point to something specific — a cataract, a retinal issue, or a surface problem. A sudden change in one eye should be checked promptly rather than waited out.

Can blurry vision come and go?

Yes — fluctuating blur is common with dry eye (it clears when you blink) and can also come with changing blood sugar or tiredness. If it keeps returning, an assessment helps pin down the cause.

This page is general information, not medical advice, and doesn't replace a consultation. For anything specific to your own eyes, call us for advice or to book an appointment with Dr Leong on 04 470 7663.

Ready to see clearly?

Book a consultation with Dr Leong, or call the clinic to talk it through. We're here to help you see your very best.

Book a Consultation 04 470 7663