How to Know If Your Dry Eyes Are Getting Worse

By Alison Daoud, Australian Optometrist and Dermii Co-founder

A bad week isn't the same as a worsening pattern

It's tempting to treat every uncomfortable day as evidence things are getting worse. They're not the same thing. A single bad day usually has an obvious trigger: a long flight, a heater running overnight, a big screen day, four hours in an air-conditioned meeting room. Those days pass once the trigger does, and your eyes settle back to their baseline within a day or so.

A worsening pattern looks different. It shows up on days with no obvious trigger. It shows up on your normal days, the ones that used to be fine without a second thought. If you can point to the reason your eyes feel rough today, that's probably a bad day. If you can't, and this is happening more often than it used to, that's worth paying attention to.

The frequency question: how often, not just how bad

Severity is the wrong first question. A single very uncomfortable afternoon tells you less than a mild but frequent pattern does. Think back three months. Were your eyes bothering you once a week? Twice? Most days? If the frequency has climbed, even if any individual day doesn't feel dramatically worse than before, that's the pattern that matters most.

Three months ago it might have been Tuesdays after a long meeting day. Now it might be most weekdays by lunchtime. That shift in frequency is more useful to track than how bad any single day felt.

When it starts earlier in the day

Timing is another useful marker. Many people with mild, occasional dryness only notice it late in the afternoon, after hours of screen use and reduced blinking have worn down the tear film's oil layer. If that same discomfort now starts by mid-morning, or you're noticing it before you've even opened your laptop, something has shifted. Your eyes are starting the day with less reserve than they used to have.

Reaching for drops more than you used to

Drop use is a genuinely useful marker because it's easy to track without guesswork. If you used to keep a bottle in a drawer for the occasional bad day and now carry one in your bag, that's a change worth noting. If you're up to three or four applications a day where it used to be one, that's a bigger one.

Drops add moisture to the eye surface and typically help for about twenty minutes before discomfort returns. Needing that relief more often usually means the underlying oil layer, produced by the glands along your lid margin, is under more strain than it used to be.

The new symptom that changes the picture: morning crust

This is the one worth paying closest attention to. Daytime dryness and grittiness on their own can come from screens, dry air, or general tear film thinning. But waking up with crusty, gluey, or stuck-together lashes is a different signal. It points specifically to the lid margin, the thin strip where your eyelashes meet your eyelid, where oil, debris, and dead skin cells build up overnight.

When that build-up starts showing up as morning crust, and it wasn't there six months ago, the problem has extended from the eye surface to the lid itself.

When the pattern points to the lid margin, not just the eye surface

Here's the distinction that matters most. Dryness that responds to drops, comes and goes with obvious triggers, and stays confined to daytime hours is often manageable with surface-level care. Dryness that's becoming more frequent, starting earlier, needing more drops, and now showing up as morning crust is usually telling you the lid margin is involved.

The glands along that margin, called the meibomian glands, produce the oil layer that keeps tears from evaporating too fast. When debris and biofilm build up along the lash line, those glands can't release oil properly, and every downstream symptom gets harder to shift with drops alone.

What to do if you recognise this pattern

If two or more of these changes sound familiar, frequency climbing, timing shifting earlier, drop use increasing, or morning crust appearing, the next step isn't a stronger drop. It's cleaning the lid margin itself. A daily routine that cleanses the lash line, supports the lid environment, and warms the glands every few days gives the oil-producing glands a chance to work properly again.

The Dermii routine takes ninety seconds, twice a day. The Lid Love wipes clean the lash line of the build-up that face wash and drops can't reach. The Miracle Mist, a hypochlorous acid spray, supports a clean lid environment between cleanses. The Self-Warming Eye Mask, used every third evening, holds gentle warmth at the lid margin for fifteen to twenty minutes to help soften and release oil that's pooled in the glands.

The Lid Lover Starter Bundle covers all three steps of this routine.

When to see your optometrist

Some changes shouldn't wait for a routine to work.

A worsening pattern deserves a proper look, not guesswork, especially if it's moving quickly rather than gradually.

Frequently asked questions