What are the best eye drops for dry eyes?

There is no single “best” eye drop for dry eye, as treatment depends on the underlying cause. According to the TFOS DEWS III framework, dry eye is a multifactorial disease involving tear film instability, inflammation, and ocular surface damage. For many patients, preservative-free lubricating eye drops are recommended as first-line therapy, particularly for frequent or long-term use. An optometrist can help select drops based on tear quality, evaporation rate, and ocular surface findings.

How often should I use eye drops for dry eyes?

The frequency of eye drop use depends on symptom severity and the type of drop used. Preservative-free drops may be used multiple times per day, whereas preserved drops should be used less frequently to avoid ocular surface irritation. If drops are needed more than 4–6 times daily, clinical guidance generally recommends preservative-free formulations and a dry eye assessment.

Can you use eye drops too often?

Yes. Overuse of preserved eye drops can worsen dry eye symptoms by disrupting the tear film and irritating the ocular surface. DEWS III emphasises minimising preservative exposure and addressing underlying causes—such as meibomian gland dysfunction or inflammation—rather than relying solely on frequent lubrication.

What is the difference between Polytears, Systane, and Hylo eye drops?

Polytears, Systane, and Hylo are lubricating eye drops, but they differ in formulation, viscosity, and preservative status. Some are better suited for mild, intermittent dryness, while others are designed for more persistent symptoms or contact lens wear. Brand name alone does not determine suitability; clinical evaluation does.

Are preservative-free eye drops better for dry eyes?

For many patients, yes. Preservative-free eye drops are commonly recommended for moderate to severe dry eye, frequent use, contact lens wear, and sensitive eyes. DEWS III highlights that long-term preservative exposure can contribute to ocular surface irritation in some people.

Can contact lens wear make dry eye worse?

Contact lenses can exacerbate dry eye symptoms by disrupting tear film stability and increasing evaporation. However, with appropriate lens materials, care systems, and compatible eye drops, many contact lens wearers can remain comfortable. Drops labelled as safe for use with contact lenses are typically preferred during lens wear.

How do I know which eye drops are right for me?

Dry eye is not a single condition. Effective management requires identifying whether symptoms are driven by evaporation, aqueous deficiency, inflammation, or eyelid disease. A dry eye assessment—including tear stability, ocular surface staining, and meibomian gland evaluation—helps guide targeted treatment rather than trial-and-error.

Are thicker eye drops better than watery ones?

Not always. Thicker drops may provide longer relief but can blur vision and may not be ideal for daytime use. Thinner drops may be better tolerated but may require more frequent application. DEWS III supports matching drop viscosity to symptom pattern and lifestyle needs.

Can dry eye be treated without eye drops?

Yes. While lubricating drops are commonly used, DEWS III emphasises a stepwise approach that may include eyelid hygiene, heat therapy, management of meibomian gland dysfunction, environmental modification, and lifestyle changes such as reducing prolonged screen use. Eye drops often remain part of treatment when symptoms affect comfort or visual quality.

When should I see an optometrist for dry eyes?

Seek professional assessment if symptoms are persistent, worsening, or affecting activities such as reading, screen use, or driving. Ongoing reliance on eye drops without improvement suggests an underlying issue that may require targeted treatment.

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VisuScience

iFlo USB Heated Eye Mask — Warm Compress for Dry Eye & MGD

Name: iFlo USB Heated Eye Mask — Warm Compress for Dry Eye & MGD
Brand: VisuScience
SKU: 6972238930005
Price: 125.00 NZD
Availability: InStock

iFlo USB Heated Eye Mask — Warm Compress for Dry Eye & MGD

$125.00 NZD

Sale Sold out

Taxes included. Shipping calculated at checkout.

✔ Stock on hand — ships NZ-wide from Rose Optometry, Hamilton.

A heated eye mask may be worth it if you have meibomian gland dysfunction (MGD) and will use it daily. Current guidance suggests warming the lids to about 40°C for 10 minutes once a day. The iFlo USB mask has settings up to 44°C and prompts you to blink, with nothing to reheat.

Is a heated eye mask worth it for dry eyes?

It may be, if MGD is part of your dry eye. The TFOS DEWS III report describes heating temperatures between 40°C and 41.5°C, used at least once a day for 10 minutes or twice a day for 5 minutes, while noting the evidence is limited. In one small randomised trial of 25 people, using a microwave heat bag 5 minutes twice daily, symptom scores (OSDI) fell from 43.9 to 20.7 over two weeks in the heated eye, compared with 43.0 to 39.8 in the eye with an unheated bag. A placebo effect could not be ruled out. Warming manages MGD rather than curing it, so expect to keep it up.

iFlo is powered through a USB port, so there is nothing to microwave and nothing to reheat. It warms in under a minute, heats the upper and lower lids at once, and has three heat settings up to 44°C. Its top setting is above the range in that report, so start low. A hot towel can deliver similar heat, but it needs re-warming about every two minutes, which is hard to keep up.

The part we dispense it for is the timing. iFlo prompts you to blink hard at eight and ten minutes, then signals the end of the cycle at twelve. Heat softens the oil, and a full blink helps move it out of the gland.

Evidence on USB masks specifically is thin. One small five-day trial of 15 people favoured a USB mask of another brand over a disposable mask on tear stability, but not on symptoms. We have not seen trial data on the iFlo itself, and eyelid temperature will not always match the mask's setting.

Who it's for

MGD or dry eye where a warm compress has been hard to keep up
People who need something to prompt them through the routine
Home and desk use, where a USB port is always within reach
Anyone who wants both lids heated at once

What is the best heated eye mask for dry eyes in New Zealand?

There is no single best mask. The best one is the one you will use properly every day.

Mask	How it heats	Best for	Price
iFlo USB mask	USB power, 12-minute cycle with blink prompts	Prompts and no reheating, home or desk	$125
Opti-Soothe	Microwave, moist heat	Lower cost	$31.30
Lula	Self-warming, single use	Flights and the handbag	$34.95 (5 pack)

Questions we get asked

How do I use a heated eye mask?
Remove contact lenses. Start on the lowest setting and use the full 12-minute cycle once a day, blinking hard when prompted. Follow with lid hygiene if your optometrist has recommended it. Wipe the lining to clean it, and never immerse the mask.

Is it worth paying more than for a microwave mask?
Not always. If you will use a microwave mask properly every day, that may do the job. Choose the iFlo if you want the prompts and no reheating.

Can a heated eye mask blur my vision?
It can, briefly. With 30 minutes of moist heat at about 45°C, 71% of people had temporary blur at 5 minutes and 88% at 30 minutes. Trials of shorter routines found vision unchanged at follow-up. Do not drive straight after if your vision is blurred.

What if it feels too hot, and can I sleep in it?
Turn it down or take it off. Never sleep in it. If you have diabetes or reduced corneal sensation, or a current eye infection or recent eye surgery, talk to us before using any heated mask.

What if it does not help?
Not all dry eye is MGD, and warming alone is not enough for everyone. If you are no better after about two weeks, a full eye exam comes first, at Rose or a copy of one done elsewhere within the last 6 months, followed by a Dry Eye Evaluation with our optometrist team. See dry eye care at Rose Optometry, or find a member of the Dry Eye Specialist Group near you.

Why buy from Rose Optometry

We are an independent, optometrist-owned New Zealand practice in Hamilton, since 1969.
Free optometrist advice with every order. Reply to your order confirmation and an optometrist answers.
Free NZ shipping on orders over $100, and everything on this page is stock on hand.

Last reviewed 3 November 2026 by the Rose Optometry optometrist team.

References: Jones L, et al. TFOS DEWS III. Am J Ophthalmol 2025, PMID 40467022, doi 10.1016/j.ajo.2025.05.039. Bilkhu PS, et al. Br J Ophthalmol 2014, PMID 24997178, doi 10.1136/bjophthalmol-2014-305220. Al Saqr AM, et al. PLoS One 2026, PMID 42868127, doi 10.1371/journal.pone.0360762. Solomon JD, et al. Optom Vis Sci 2007, PMID 17632305, doi 10.1097/OPX.0b013e3180dc99d5.