Most people wait until they can’t read a menu to consider that their prescription might be out of date. But your eyes rarely announce the change all at once. They compensate, strain, and quietly work harder until the symptoms become hard to ignore.
The good news: your body gives you plenty of signals before things get that uncomfortable. Here’s what to look for.
1. You’re getting headaches after screen time or reading
This is one of the most commonly dismissed signs. When your prescription is no longer accurate, your eyes have to work harder to bring text into focus. That extra effort puts strain on the muscles around your eyes, and that strain translates into tension headaches, often felt across the forehead or behind the eyes.
If you’re regularly reaching for paracetamol after working at a screen or reading for more than 30 minutes, it’s worth getting your eyes checked before putting it down to stress.
2. You’re squinting more than you used to
Squinting partially closes the eyelid, which reduces the amount of light entering the eye and temporarily sharpens focus. It works on the same principle as a pinhole camera. If you find yourself squinting to read signs, see the TV clearly, or focus on your phone, your current prescription may no longer be giving you the clarity you need.
3. You’re tilting your head or holding things at a different distance
Do you find yourself moving your phone closer or further away than you used to? Holding a book at arm’s length, or craning your neck to read a screen? These are unconscious adaptations your body makes when your prescription has drifted. They often feel normal until someone points them out.
4. Your vision feels “off” but you can’t quite describe it
Sometimes a changed prescription doesn’t feel like blurry vision exactly. It’s more like the world looks slightly flat, or colours seem duller, or things don’t look quite crisp even when you’re technically able to read them. This can happen gradually enough that you adapt without noticing.
If you’ve had a vague sense that something’s not quite right with your vision, that’s worth mentioning to your optometrist, even if you can still pass an informal “can I read that sign?” test.
5. You’re experiencing more eye fatigue or tired eyes
Tired eyes at the end of a long day are common. But if your eyes feel strained by mid-morning, or feel consistently sore and heavy after tasks that didn’t used to bother you, your prescription may be making your eyes work overtime.
This is especially common when prescriptions change gradually. You may not realise how much effort your eyes have been putting in until you get updated lenses and notice the difference.
6. You’re having trouble with night driving
Difficulty seeing clearly at night, such as halos around headlights, trouble reading road signs, or needing to slow down more than you used to, can be an early sign that your prescription has changed. Low-light conditions are less forgiving than daylight, so vision changes that are manageable during the day often become more noticeable after dark.
If you’ve started avoiding night driving or find it more stressful than it used to be, bring it up at your next appointment.
7. It’s been more than two years since your last eye test
Even if you’re not experiencing any obvious symptoms, prescriptions can change without you noticing, particularly in your 40s and beyond, when the eyes naturally begin to change more quickly. The Australian optometry guidelines recommend an eye test at least every two years for adults, and annually for those over 65 or with existing eye conditions.
A current prescription isn’t just about seeing clearly. It reduces strain, supports visual comfort, and means your optometrist can track any changes over time.
When to see an optometrist
Book an eye test if you’re experiencing any of the above, or if it’s simply been a while since your last one. You don’t need a referral, and most consultations with an independent optometrist are covered in full or in part by Medicare.
An independent optometrist will take the time to understand your full visual history, not just update your script. They’re not working against a retail quota. Their focus is on what’s right for your eyes.
Disclaimer
The information in this article is provided for general educational purposes only and should not be considered medical advice. For personalised advice regarding your vision or eye health, please consult a qualified optometrist.
Australian Made Vision is an independent directory that helps patients find optometrists across Australia who may offer Australian-made spectacle lenses. We do not provide clinical services and recommend contacting practices directly to confirm the products and services they offer.