Somewhere in the last couple of years your glasses stopped doing their job, night driving got harder, and the lamp by your chair isn't enough anymore. Each one came with a reasonable explanation. Nobody has said the word cataract, and you're starting to wonder.
The video below is the conversation we'd have in my office. It walks through the six changes people notice before a cataract is ever named, where in an ordinary week each one shows up, and something you can do about each of them this week. By the end you'll be able to name which of the six is yours.
What to listen for
- The one thing inside your eye that produces all six complaints, and why treating them one at a time never worked.
- Why a new pair of glasses can be measured exactly right and still not help, and the moment most people give up on them.
- Why night driving turns worse before anything else does, and two things to do to your car before the weekend.
- The change that happens so slowly you can't notice it yourself, and what finally gives it away.
- Which complaints are not a cataract at all, including one that means an earlier appointment.
- Whether noticing these means surgery. There's a straight answer.
Things I'd add to the video
There were a few more things worth knowing that never made it on camera.
Floaters come from the gel, not the lens. People bring me specks, strings and cobwebs drifting across their vision and assume it's the cataract. It isn't. Those come from the clear gel that fills the back of the eye, well behind the lens, and a cataract can't make them. Most floaters are harmless. A sudden shower of new ones, especially with flashes of light, is the exception, and that's an appointment soon rather than later.
A cataract only moves in one direction. It gets slowly worse, and it never gets better on its own. So if your vision is sharp one day and blurry the next, or good this week and bad the week after, that swing is not the cataract. Vision that comes and goes usually points at the surface of the eye, and that's a different, and often easier, conversation.
Ask yourself what you've quietly stopped doing. Nobody decides to stop driving after dark. It happens in pieces. You stop volunteering for the airport run. You let someone else drive to dinner. You stop reading in the evening because the light never feels right. None of those feel like a decision at the time. Added up, they're the truest measure of what a cataract is costing you. Bring that list to your exam. It tells your eye doctor more than the chart does.
Why the lamp stopped being enough. A clouding lens does two things to light. It absorbs some, and it scatters the rest. The scatter is what washes out the difference between dark print and white paper, so the page loses its edge before it loses its focus. That's why a brighter room doesn't help much and one light aimed at the page does. The lamp puts the contrast back.
What a cataract is
A cataract is the lens inside your eye becoming cloudy with age. It isn't a growth and it isn't a film on the surface. If you want the plain-language version of what the lens does and what changes in it, that's on its own page: What are cataracts? A cataract surgeon explains. This page is about what you'd notice.
When to see an eye doctor
If any of the six sound familiar, a routine eye exam is the next step. An exam names it. Nothing about a cataract is urgent, and nobody should be talking you into surgery on the day you're told you have one.
A few things don't fit that timeline. Vision that drops over hours or a day, eye pain, a burst of new floaters with flashes of light, or a shadow across part of your sight are never a cataract, and they're worth being seen for sooner rather than later.
Common questions
What are the early signs of cataracts?
A prescription that changes faster than it used to, and then new glasses that don't help. More glare and halos around lights, and night driving that gets harder. Needing more light to read than you used to. Colors that look faded or yellowed. Sometimes double vision in one eye. They tend to arrive one at a time over a few years, and each one gets blamed on something else, which is why most people don't connect them.
Do cataracts hurt?
No. A cataract changes what you see, slowly, and it never causes pain, redness, itching or watering. If your eye hurts or looks red, something other than a cataract is going on, and that's worth being seen for sooner, even if you also have a cataract.
Does having cataract symptoms mean I need surgery?
Not by itself. In almost every case a cataract isn't damaging anything while it sits there, so noticing these changes is a reason to have an exam, not a reason to book surgery. What decides the timing is how much the changes are getting in the way of your day, and that's a separate decision with its own video.
The next decision
The video ends on the question that comes after this one: if every one of these tips is a workaround, when do you stop working around it? That's its own video: How You Know It's Time For Cataract Surgery? Truth Revealed
Reviewed by Hussain Elhalis, MD · September 16, 2026