Watery Eyes
Watery eyes — why they are so often dry eyes, and what to do about it in Hamilton
Eyes that stream in the wind, water at the computer, run when you read, or leave you dabbing at them all day are one of the most common problems we see at Rose Optometry in Frankton, Hamilton. Here is the part that surprises most people: the usual cause of watery eyes is dry eyes. It sounds backwards. It is not, and once you understand why, the treatment makes sense.
Book a Dry Eye Evaluation online: open our online booking — the Dry Eye Evaluation is preselected and is the right starting point for watery eyes; just choose a time. It is a paid, focused assessment and the fee is confirmed when you book. Prefer to talk? Call 07 847 3195.
The watery-eye paradox, explained
Your tears are not just water. They are three layers: a mucus layer that helps them stick to the eye, a watery layer that does most of the work, and a thin layer of oil on top that stops the water evaporating. That oil comes from the meibomian glands along the edge of your eyelids.
When those glands block or fail — meibomian gland dysfunction — the oil layer breaks down, the tears evaporate between blinks, and the surface of the eye dries out. A dry, irritated eye sends an alarm to the brain, and the brain responds the only way it can: it orders the lacrimal gland to flood the eye with reflex tears. Reflex tears are almost pure water. They have no oil layer, so they evaporate straight away, the eye dries again, and the cycle repeats — all day. The result is an eye that is dry underneath and streaming on top. Cold wind, air conditioning, screens and reading make it worse because they all speed up evaporation or slow your blink.
This is why a lubricating drop often helps for a few minutes and then stops, and why "watery eyes" and "dry eyes" appear in the same sentence in almost every dry eye textbook. The treatment for this kind of watering is not to dry the eye out further. It is to fix the oil layer.
The other causes of watery eyes
Reflex tearing from a dry surface explains most watery eyes, but not all, and the assessment is designed to tell them apart.
Blepharitis and eyelid inflammation
Inflamed, crusty lid margins irritate the eye and block the gland openings. Often the watering settles once the lids are treated. See blepharitis treatment.
Blocked tear ducts
Tears drain away through tiny openings in the inner corner of each lid (the puncta), down a channel into the nose. If that channel narrows or blocks, tears have nowhere to go and spill over the lid. This kind of watering tends to be constant rather than in response to wind or screens, often affects one eye more than the other, and can cause a sticky discharge or a tender lump at the inner corner. We can check the drainage in clinic; a truly blocked duct is treated by an ophthalmologist, and we refer directly.
Eyelid position and lax lids
If the lower lid sags outward (ectropion), turns inward so the lashes rub (entropion), or has become loose with age, the puncta no longer sit against the eye and tears cannot drain. The lid margin also dries out. Watering from lid position is usually worse when looking down and in the wind. We assess this at the slit lamp and refer for a minor lid procedure where it is the cause.
Allergy
Hay fever and other allergies inflame the conjunctiva and cause itchy, watery eyes, typically both eyes together and in season. Rubbing makes it worse. Anti-allergy drops help here where dry eye drops do not — one more reason the cause matters.
Something on the eye, or in it
A foreign body, an in-turned lash, a scratch, or an infection all cause sudden watering with pain or light sensitivity. If one eye has become painful, red and watery, phone us on 07 847 3195 the same day rather than booking online.
How we find the cause
At a Dry Eye Evaluation we measure your tear film with TearCheck (how fast it evaporates, how much tear is present, how well you blink), photograph your meibomian glands with meibography, measure tear osmolarity with ScoutPro, examine the lid margins and lashes for blepharitis and Demodex, and check lid position and tear drainage. Fifteen minutes, nothing uncomfortable, and at the end we can tell you which of the causes above is doing it — very often, more than one.
Treating watery eyes
When the cause is evaporative dry eye, which it usually is, treatment is aimed at the meibomian glands: a proper warm compress and lid hygiene routine, an oil-containing drop chosen for your tear film rather than off the shelf, and where the glands are blocked or inflamed, in-clinic treatment with IPL, LipiFlow, Blephasteam or low level light therapy, all available at our dry eye clinic in Hamilton. As the oil layer recovers, the surface stops drying, the alarm stops, and the watering stops. Blepharitis and allergy are treated on their own terms; blocked ducts and lid position problems are referred to an ophthalmologist, and we stay involved.
We see patients from Hamilton, Cambridge, Te Awamutu, Morrinsville, Huntly, Raglan and the wider Waikato, and accept referrals from GPs and other optometrists. Rose Optometry is a founding member of the Dry Eye Specialist Group.
Frequently asked questions
Why do my eyes water in the wind or cold?
Wind and cold air strip the tear film faster than a healthy oil layer can hold it. If your oil layer is thin, the eye dries within a blink or two and reflex tears flood in. Treating the meibomian glands usually fixes it; wrap-around glasses help in the meantime.
Why do my eyes water when I read or use a screen?
Because you blink less — roughly a third as often — and each blink is less complete, so the tear film breaks up and the eye dries. The same reflex follows. Blink training, screen habits and gland treatment all help.
Why does only one eye water?
One-sided, constant watering points more towards a drainage problem — a narrowed or blocked tear duct, or lid position — than towards dry eye, which usually affects both eyes. It needs a proper look.
Should I use drops for watery eyes?
Sometimes — but the right kind. A lipid-containing drop that supports the oil layer can calm reflex watering; a thin watery drop often does nothing. Anti-allergy drops help allergic watering. Decongestant "get the red out" drops make everything worse over time. We will tell you which, if any, is worth using.
Do watery eyes mean I have an infection?
Not usually. Infection tends to bring discharge, redness, pain or light sensitivity as well. Watering on its own, especially in wind or at a screen, is nearly always a tear film problem.
Book an assessment for watery eyes in Hamilton
Book a Dry Eye Evaluation online — the appointment is preselected; just choose a time. If your eye is painful, red or light-sensitive, please phone us instead.
Rose Optometry, 38 Lake Road, Frankton, Hamilton. 07 847 3195
References
- Craig JP, Nichols KK, Akpek EK, et al. TFOS DEWS II Definition and Classification Report. Ocul Surf. 2017;15(3):276-283.
- Bron AJ, de Paiva CS, Chauhan SK, et al. TFOS DEWS II Pathophysiology Report. Ocul Surf. 2017;15(3):438-510. PMID 28736340.
- Nichols KK, Foulks GN, Bron AJ, et al. The International Workshop on Meibomian Gland Dysfunction: Executive Summary. Invest Ophthalmol Vis Sci. 2011;52(4):1922-1929. PMID 21450913.
- Jones L, Craig JP, Markoulli M, et al. TFOS DEWS III: Management and Therapy. Am J Ophthalmol. 2025;279:289-386. PMID 40467022.
Rose Optometry's dry eye clinic is led by Jacqueline Rowe — BSc Chemistry, BOptom. Partner Optometrist, Rose Optometry; New Zealand Eye Research Centre. Last reviewed August 2026.
Frequently asked questions
In NZ an optometrist can calculate the prescription for glasses, fit contact lenses, diagnose and treat eye conditions and infections with medication. They can also manage ocular injuries including removing foreign objects. If surgery or specialist treatment is required they can refer to an ophthalmologist (eye surgeon), hospital, or other health care specialist. NZ-trained optometrists must complete a 5-year degree at the University of Auckland before becoming registered.
A dispensing optician has formal training in optical dispensing. They are qualified to help a client choose frames, read a prescription, discuss lens options, take measurements, order and fit glasses.
An ophthalmologist is a medical doctor who has specialised in the treatment of serious eye disease and ocular surgery such as cataract removal. They do not typically prescribe glasses or contact lenses.
While payment is generally required on the day of appointment, we do offer a number of payment options including Afterpay, Genoapay, QCard, and GoCardless.
Yes, we do.
Yes, you can.
Yes, if you are under 16 years of age you may be eligible for a subsidy for glasses. MSD criteria apply.
No. We are closed on public holidays and long weekends as we believe our staff should have the chance to enjoy this time with friends and family.
If your eyes are straightforward, almost any good optometrist can look after you well, and we would rather say that than pretend otherwise. Come to us when something is not straightforward: a prescription that will not settle, a cornea that has changed shape, a child whose short-sightedness is moving faster than it should, an eye surface that has stopped being comfortable, or a diagnosis you have been given but do not understand. Those problems are decided by measurement, and measuring them properly needs instruments most practices do not have.
Yes, and you do not need to justify it. A second opinion is not a criticism of whoever saw you first — very often they were right, and what you actually needed was the finding explained and the numbers put in front of you. What we can add is measurement. We can image the layers of your cornea and retina, map the epithelium, quantify how far your cornea sits from normal, measure the length of your eye and check your tear film objectively. That turns “something is not right” into a number, and a number either explains the problem or rules it out. Bring any previous scans, prescriptions and letters. Comparison against your own past results is often the most valuable thing in the room.
Usually. Complex is what this practice was built around — keratoconus, corneal grafts, irregular corneas after surgery or injury, severe dry eye, high prescriptions, and eyes that have been told they are not fittable with contact lenses. The Rose K lens for keratoconus was designed in this practice, and lenses of that family are now the most frequently prescribed in the world for the irregular cornea. If we cannot help, we will tell you at the first appointment and tell you who can, rather than taking you through a course of treatment that was never going to work.
Not necessarily. “Not fittable” usually means not fittable with the lens designs and the measurements available at the time. Corneal mapping, epithelial thickness imaging and modern scleral and custom lens designs have moved a long way, and eyes that were genuinely unfittable ten years ago are often routine now. What we can promise is an honest answer after we have measured, not before.
Measure things that are usually not measured. Swept-source OCT of the cornea gives us tomography, full-thickness mapping, epithelial thickness mapping and an objective ectasia risk score. Retinal OCT with autofluorescence shows cellular-level change without any dye being injected. Optical biometry measures the length of the eye to a hundredth of a millimetre, which is how myopia is properly monitored. Objective tear film assessment and osmolarity replace guessing about dry eye. Most of these produce a baseline you can be compared against for the rest of your life, and that comparison is frequently worth more than any single result.
No. Anyone can book directly. Many of our patients are referred by their own optometrist, their GP or an ophthalmologist, and just as many simply ring us. A referral letter is useful because it saves repeating history, but it is not a requirement and it is not a condition of being seen.
No, and we would not build a referral practice on that basis. We accept referrals every week from optometrists across the Waikato and well beyond — Specsavers, OPSM, Bailey Nelson, Visique, For Eyes and independent practices alike. The patient comes to us for the part that needs our instruments or our lens work, and goes back to you with a written plan and the imaging. We are also glad to talk a case through before you refer, and if you have an OCT but no biometer we can help you get objective myopia measures out of the instrument you already own. Please contact us for co-management.
Waiting is the one thing that cannot be undone. Short-sightedness is axial — the eye is physically growing too long — and that length does not come back. What treatment does is slow the rate of growth, so the earlier it starts the more length is saved. We measure axial length directly on two independent biometers and plot it against normal growth curves, which means we can see a child drifting off their expected curve before the prescription changes. There is a free 15-minute myopia chat if you want to understand the options before committing to anything. It is worth being precise about what we are all trying to achieve. Myopia control does not stop a child's eyes changing and no practice should tell a parent it will. What it does, reliably and across many published trials, is slow the rate at which the eye lengthens — and because the risk of retinal detachment, myopic maculopathy and glaucoma in later life rises with every extra millimetre, slowing that growth is how a child is kept out of the range where sight is genuinely at risk. After seventeen years of focusing on this, we are now seeing children on customised plans whose axial length is not progressing at all over a monitoring period, and in some cases measurements that come back slightly shorter than the ones before them. That is our own clinical observation in our own patients rather than a trial result, and it has to be read carefully, because the choroid thickens when treatment is working and part of an apparent reduction can be that thickening rather than the eye itself shortening. That is precisely why we measure both. We are not yet able to tell a parent that we can stop myopia in its tracks, and we will not say it until we can.
Two things: we measure it before treating it, and we hold every current treatment technology in one building. Most dry eye is treated on the basis of symptoms, which is why drops so often fail. A tear film can be failing because the oil layer is blocked, because the water layer is short, because the surface is inflamed, or because the lids are the problem, and those need different treatments. We assess the tear film objectively with TearCheck — tear film stability, the oil layer, lid and gland imaging, and an inflammation measure — and measure tear osmolarity, the saltiness of the tears, which is the closest thing to a laboratory number for dry eye. Then we treat the cause. Rose holds intense regulated pulsed light for inflammation and gland function, LipiFlow thermal pulsation to clear blocked meibomian glands from the inner lid surface, Blephasteam controlled-humidity warming, Tixel thermomechanical treatment for the lids, and Rexon-Eye quantum molecular resonance for the more severe and treatment-resistant cases. At the time of writing, and to the best of our knowledge, no other optometrist or ophthalmologist in New Zealand has all of these available under one roof. We say that as a statement of fact rather than a boast, and we would be glad for it to stop being true. Dry eye is one of the most common and most under-treated conditions we see, and there are far more people living with it than one practice can look after. Any practice wanting to build this kind of service has our encouragement and our help — please contact us for co-management, and send us the cases you are not yet set up for. Why holding all of them matters is simple. A practice with one dry eye machine will offer you that machine. Holding all of them means the assessment decides the treatment, rather than the equipment deciding it — and when the first approach does not work, the next one is in the next room rather than in another city.
Yes — from around six weeks of age. Babies and toddlers are tested with Cardiff acuity cards and retinoscopy, neither of which needs the child to read a letter, name a picture or say a word. Most of the findings that matter in a young child cause no symptoms and are invisible to a parent, which is exactly why they need looking for.
There is one good reason: a baseline. Almost everything we look for — glaucoma, macular change, a cornea beginning to alter shape, an eye that is lengthening — is diagnosed by comparison over time rather than by a single reading. A scan taken while everything is normal is the reference every future scan is measured against, and it is the one you cannot go back and take later.
Because measurement takes time and we would rather not split it across visits. A first appointment usually involves imaging as well as examination, and you should expect to have the results shown to you and explained rather than summarised. If a problem is genuinely straightforward we will say so and keep it short.
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