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Dry Eye Conditions

“Dry eye” is not one condition. It is a family of them — different mechanisms, different tissue involved, different treatment. Two people with identical symptoms can need entirely different care. This is where we set out what we look for, what each condition actually is, and how we tell them apart.

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If you are not sure where you fit

Most people arrive here having been told their eyes are dry and handed a bottle of drops. That is a description of a symptom, not a diagnosis. If you have been managing this for a while without much changing, these two pages are the place to begin — they explain the machinery behind the symptoms before you try to work out which condition is yours.

Foundation

What Is Dry Eye Disease?

What the tear film is actually made of, what goes wrong when it fails, and why the same word covers several different problems. The clearest starting point if the term has never been properly explained to you.

Read the overview Symptoms

Dry Eye Symptoms

Burning, grit, fluctuating vision, light sensitivity — and, confusingly, watering. What each pattern tends to point toward, and which symptoms are worth a specialist assessment rather than another drop.

Match your symptoms
What we diagnose and treat

The conditions behind dry eye

These conditions overlap constantly. Most people who come to us have more than one of them at the same time, which is one reason a single treatment aimed at a single cause so often disappoints. Each page below explains the condition on its own terms — what it is, how it is confirmed, and what changes when it is treated properly.

Most common driver

Meibomian Gland Dysfunction (MGD)

The oil glands lining your eyelids stop delivering, and the tear film evaporates before it can do its job. The glands themselves can be imaged and measured — which is what turns a guess into a plan.

Understand MGD Lid margin disease

Blepharitis & Demodex

Inflammation, bacterial biofilm and mites along the lash line. It frequently sits underneath gland dysfunction, and treating one while ignoring the other is a common reason symptoms keep coming back.

Understand blepharitis Reduced tear production

Aqueous Deficiency Dry Eye

Not a quality problem but a volume problem — the lacrimal gland is not producing enough. It is measurable, and occasionally it is the first visible sign of a systemic condition worth investigating further.

Understand aqueous deficiency Blocked gland

Chalazion

A firm lump in the eyelid caused by a blocked meibomian gland. Usually benign and often self-limiting — but one that recurs in the same spot is a reason to be examined rather than watched.

Understand chalazion Often mistaken for dry eye

Allergic & Toxic Conjunctivitis

Itch, redness and swelling that read as dryness — sometimes caused or worsened by the very drops being used to treat it. Separating the two changes the whole treatment plan.

Understand the difference
The diagnostic work

How we tell these conditions apart

Symptoms alone will not separate these conditions — they overlap far too much. What separates them is measurement. A dry eye assessment here is a panel of tests that together describe your tear film, your glands and your ocular surface as they actually are, so the treatment plan follows the findings rather than the guess.

Meibography — imaging the glands themselves

Infrared imaging shows the meibomian glands in the eyelid: how many remain, their structure, and how much has been lost. It is the single biggest difference between a standard dry eye check and the assessment we do, because it turns an invisible problem into something you can see on a screen.

Tear osmolarity

Measures how concentrated the tears have become. It is one of the more specific objective markers for dry eye disease and, usefully, it tends to move as treatment starts working — which makes it a way of checking progress rather than relying on memory.

Tear volume and tear film stability

Tear production testing addresses how much tear you are making; break-up time addresses how long the film holds together once you blink. Together they separate a volume problem from a quality problem — the difference between aqueous-deficient and evaporative dry eye.

Ocular surface staining

Dyes make visible any damage the dryness has already caused to the cornea and conjunctiva. This is what distinguishes an uncomfortable eye from a damaged one, and it is a significant factor in how quickly and how aggressively we treat.

Inflammatory markers

A point-of-care test detects inflammation at the ocular surface even when the eye does not look particularly inflamed. Where inflammation is driving the picture, the treatment plan needs to address it directly rather than lubricate around it.

Why this matters more than it sounds

Gland tissue that has already been lost does not grow back. Glands that are still present but struggling often respond well. That is the honest case for assessing early rather than continuing to manage symptoms indefinitely — not urgency, just the biology of the tissue involved.

The dry eye assessment page sets out what the appointment involves, how long it takes and what you will leave with.

Connected care

When it turns out to be more than dry eye

An ocular surface examination sometimes finds things that sit outside our remit. U Dry Eye Institute (UDEI) is part of U Vision Group, so when that happens the next step is arranged internally — same records, same imaging, no starting over with a new team and no dead end.

Uptown Eye Specialists

For findings beyond the ocular surface, and for lid lesions that need oculoplastic assessment or a procedure we do not perform here.

U Eye Laser Cosmetic (UELC)

Corneal mapping done as part of a dry eye workup sometimes shows that laser vision correction is a realistic option. If that applies to you, we will tell you — the data is already collected.

U Optical

For specialty and scleral lens fitting where the corneal surface makes standard lenses impractical, and for ongoing optometric care alongside treatment here.

U Shoppe

The home care that holds the results between appointments — compresses, lid hygiene and preservative-free options matched to your treatment plan.

For referring optometrists and physicians

We work alongside referring practices rather than in place of them. Patients are assessed, treated for the advanced or refractory component, and returned to your care with the findings. Details and the referral pathway are on the referring doctors page.

Take the next step

You are not imagining this

If you have been told your eyes are dry and left to manage it, and it has not got better, that is not a failure of effort on your part. It usually means the specific cause has not been identified yet. Est. 2006, U Dry Eye Institute (UDEI) exists to do exactly that piece of work.

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