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Optase Allergy Preservative Free Eye Drops Single Dose Units (x20)

Optase Allergy Preservative Free Eye Drops Single Dose Units (x20)

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  • ✔️ Relieves itchy, watery eyes caused by hay fever and allergies
  • ✔️ Preservative-free formula — gentle on sensitive eyes
  • ✔️ Single-dose units ensure sterility with every application
  • ✔️ Contains ectoine and sodium hyaluronate for dual-action relief
  • ✔️ Suitable for contact lens wearers — remove lenses before use

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Are Optase Allergy Eye Drops the Right Preservative-Free Choice for You?

 

If your eyes itch, water, or feel gritty every time pollen season arrives — or whenever you're around cats, dust, or other triggers — you're not alone. Allergic conjunctivitis affects millions of people in the UK each year, and finding a drop that actually soothes without causing further irritation can feel like a challenge in itself. Allergy eye drops preservative free formulations have become increasingly popular precisely because they avoid the preservatives that can aggravate already-sensitive eyes. Optase Allergy Preservative Free Eye Drops Single Dose Units (x20) are designed with that in mind — each vial is used once and discarded, so there's no risk of preservative build-up over time. You can browse our full range of eye care products if you're looking for additional support alongside these drops.

Each pack contains 20 individual single-dose units, giving you a convenient, hygienic option whether you're at home, at work, or on the go. At £9.99, it represents solid value for a month's worth of daily relief during peak allergy season.

 

How Do Optase Allergy Eye Drops Work to Relieve Symptoms?

 

The drops combine two key ingredients — sodium hyaluronate and ectoine — to tackle allergic eye symptoms from more than one angle. Here's how they work:

  • Sodium hyaluronate is a naturally occurring molecule that helps retain moisture on the ocular surface, stabilising the tear film and reducing the dryness that often accompanies allergic reactions.
  • Ectoine is a naturally derived extremolyte that forms a protective hydration shell around cells and proteins on the eye's surface, helping to shield against allergens and reduce the inflammatory response that causes itching and redness.
  • Together, these ingredients help to calm the ocular surface without the need for antihistamines or steroids, making them suitable for regular, ongoing use.
  • Because the formula is preservative free, there is no risk of the preservative-related toxicity that can occur with multi-dose bottles used over extended periods.

 

Who Should Consider Using Optase Allergy Preservative Free Eye Drops?

 

These drops are well suited to anyone who experiences eye symptoms linked to allergies — whether seasonal or year-round. They're particularly useful if you've found that other eye drops sting or cause further irritation, which is often a sign of sensitivity to preservatives. People who wear contact lenses may also find them helpful, provided lenses are removed before use.

  • Adults and children suffering from hay fever-related eye symptoms
  • People with perennial allergic conjunctivitis triggered by dust mites, pet dander, or mould
  • Contact lens wearers who need a preservative-free option
  • Those who prefer a single-dose format for hygiene and convenience

If you're managing broader allergy symptoms alongside itchy eyes, it's worth exploring our allergy and hay fever range for complementary treatments.

 

How Do Optase Allergy Drops Compare to Other Eye Drop Options?

 

Feature Optase Allergy PF Single Dose (x20) Standard Preserved Multi-Dose Drops
Preservative free Yes — each unit discarded after use No — contains preservatives (e.g. benzalkonium chloride)
Suitable for contact lens wearers Yes (remove lenses first, wait 15 min) Often not recommended with soft lenses
Key active ingredients Sodium hyaluronate + ectoine Varies — often antihistamine or mast-cell stabiliser
Hygiene Single-use — no contamination risk Multi-dose — potential for contamination over time

 

Are Optase Allergy Eye Drops Safe to Store and Use Long Term?

 

Optase Allergy Preservative Free Eye Drops should be stored below 25°C and kept away from direct sunlight. Do not freeze them. Each single-dose unit must be discarded immediately after use — even if solution remains in the vial — to prevent contamination. Because they are allergy eye drops preservative free, they do not contain the antimicrobial agents that allow multi-dose bottles to be kept open for weeks, so single-use discipline is essential.

These drops are not intended to replace medical treatment for severe or persistent eye conditions. If your symptoms do not improve after a few days of use, or if you develop pain, significant vision changes, or discharge, stop using the drops and seek advice from your GP or pharmacist promptly.

This product is a medicine. Speak to your doctor or pharmacist before using if you have an underlying medical condition or are taking other medicines.

Optase Allergy Preservative Free Eye Drops Single Dose Units (x20) specifications
Treatment category Allergic conjunctivitis / dry and irritated eyes
Mechanism of action Ocular surface stabilisation via sodium hyaluronate and ectoine
Effective for Itching, redness, watering, and irritation due to eye allergies
Suitable for Adults and children; contact lens wearers (remove lenses first)
Active ingredients Sodium hyaluronate, ectoine
Pack size 20 single-dose units
UK classification General Sale / CE-marked medical device (class IIa)
Preparation Sterile ophthalmic solution
Route of administration Topical ocular (eye drops)

Specifications of Optase Allergy Preservative Free Eye Drops Single Dose Units (x20)

 

What Are Optase Allergy Eye Drops and What Are They Used For?

 

Optase Allergy Preservative Free Eye Drops are a sterile ophthalmic solution supplied in 20 individual single-dose units. They are used to relieve the symptoms of allergic conjunctivitis — the inflammation of the conjunctiva (the thin membrane covering the white of the eye and the inner eyelids) triggered by allergens such as pollen, dust mites, pet dander, and mould spores. Symptoms typically include itching, redness, watering, and a gritty or burning sensation.

Allergic conjunctivitis is extremely common in the UK, particularly during spring and summer when grass and tree pollen counts are high. The NHS notes that hay fever affects around one in five people in the UK at some point in their lives, and eye symptoms are among the most frequently reported complaints. These drops offer a preservative-free approach to managing those symptoms directly at the ocular surface.

 

What Do You Need to Know Before Using Optase Allergy Eye Drops?

 

Before using these drops, read the following carefully. They are not suitable for everyone, and certain conditions or circumstances require extra caution.

Do not use these drops if:

  • You are allergic to any of the ingredients, including sodium hyaluronate or ectoine
  • You have an active eye infection — drops will not treat infection and may worsen it
  • You are wearing soft contact lenses at the time of instillation
  • The single-dose unit seal is broken or the packaging is damaged

Take care and speak to a pharmacist or GP if:

  • You have been diagnosed with glaucoma or another chronic eye condition
  • You have recently had eye surgery
  • Your symptoms include eye pain, significant vision changes, or purulent (pus-like) discharge — these may indicate a more serious condition requiring medical assessment
  • You are pregnant or breastfeeding — while topical eye drops have minimal systemic absorption, it is always sensible to seek professional advice

Known drug interactions:

  • No clinically significant drug interactions have been identified for sodium hyaluronate or ectoine ophthalmic drops
  • If you are using other eye drops or eye ointments, leave at least 5–10 minutes between applications and apply ointments last

 

How Should You Use Optase Allergy Preservative Free Eye Drops?

 

Using these drops correctly ensures you get the most benefit and avoid contamination. Follow these steps each time:

  1. Wash your hands thoroughly with soap and water before handling the unit.
  2. Twist off the tip of the single-dose unit — do not use scissors, as this may contaminate the solution.
  3. Tilt your head back slightly and look upward.
  4. Gently pull down your lower eyelid to create a small pocket.
  5. Hold the unit above your eye and squeeze gently to instil one to two drops into the pocket.
  6. Blink gently to spread the solution across the eye surface.
  7. Repeat in the other eye if needed.
  8. Discard the unit immediately after use — do not save it for later, even if solution remains.
Indication Age Group Dose Frequency
Allergic conjunctivitis Adults 1–2 drops per eye As needed to relieve symptoms
Allergic conjunctivitis Children 1–2 drops per eye As needed; consult pharmacist for young children

 

What Are the Possible Side Effects of Optase Allergy Eye Drops?

 

Side effects with these drops are uncommon, but as with any ophthalmic product, some people may experience mild reactions. If you're also managing wider allergy symptoms, our allergy and hay fever collection includes additional options that may help.

Common side effects (may affect up to 1 in 10 people):

  • Brief stinging or burning sensation immediately after instillation
  • Temporary blurred vision — avoid driving until vision clears

Less common side effects (may affect up to 1 in 100 people):

  • Mild redness or watering of the eye shortly after use
  • A sensation of something in the eye (foreign body sensation)
  • Eyelid irritation

Stop using the drops and seek medical advice if you experience worsening redness, pain, swelling, or any change in vision that does not resolve quickly.

 

How Should You Store Optase Allergy Preservative Free Eye Drops?

 

Correct storage keeps the drops sterile and effective. If you're travelling with them, they're compact enough to carry in hand luggage — though it's worth checking current liquid restrictions. You might also find our travel health range useful for managing allergies away from home.

  • Store below 25°C in a cool, dry place
  • Do not freeze
  • Keep out of direct sunlight
  • Keep out of the reach and sight of children
  • Do not use after the expiry date printed on the packaging
  • Discard each single-dose unit immediately after use — they are not designed for multiple applications
  • Do not use if the packaging is damaged or the seal is broken

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Your safety and success are our highest priorities. Our medical team rigorously evaluates every product and piece of advice we provide, ensuring you receive only the most effective, science-backed solutions available.

Frequently Asked Questions

Where can I buy Optase Allergy Preservative Free Eye Drops online in the UK?

You can order Optase Allergy Preservative Free Eye Drops Single Dose Units (x20) directly from Cured Pharmacy for £9.99 — no prescription needed. They are available as an over-the-counter product and can be delivered to your door. Browse our full eye care collection for related products.

How do Optase Allergy Eye Drops work in the eye?

The drops contain sodium hyaluronate, which stabilises and lubricates the tear film, and ectoine, a naturally derived molecule that forms a protective layer on the ocular surface to shield against allergens. Together they reduce the itching, redness, and watering associated with allergic conjunctivitis. They do not contain antihistamines or steroids, so they work by physical protection and lubrication rather than pharmacological suppression.

How do I use Optase Allergy Eye Drops step by step?

Wash your hands, twist off the tip of the single-dose unit, tilt your head back, and gently pull down your lower eyelid. Squeeze one to two drops into the pocket formed, blink gently, and then discard the unit immediately — even if solution remains. Never touch the tip of the unit to your eye or any surface, as this can introduce bacteria.

How often should I use Optase Allergy Eye Drops each day?

Use one to two drops in each affected eye as often as needed to relieve your symptoms. There is no strict maximum frequency stated for these drops, but if you find you need them very frequently throughout the day, it is worth speaking to your pharmacist or GP to review your overall allergy management. Consistent use during high pollen periods may provide better ongoing comfort.

Can I use Optase Allergy Eye Drops if I wear contact lenses?

Yes, but you must remove your soft contact lenses before instilling the drops and wait at least 15 minutes before reinserting them. Because these drops are preservative free, they are less likely to cause the lens discolouration or ocular surface irritation that preserved drops can cause. Hard (rigid gas-permeable) lens wearers should also follow the same precaution and check with their optician if unsure.

Are Optase Allergy Eye Drops suitable for children?

These drops are generally considered suitable for adults and children suffering from allergic eye symptoms. For young children, it is always advisable to consult a pharmacist or GP before use to confirm suitability and ensure correct technique. A parent or carer should always supervise administration in younger children to avoid accidental injury to the eye.

What are the side effects of Optase Allergy Preservative Free Eye Drops?

Side effects are uncommon but can include a brief stinging or burning sensation immediately after instilling the drops, and temporary blurred vision. Less commonly, you might notice mild redness, watering, or a foreign body sensation. If any side effect persists or worsens, stop using the drops and speak to your pharmacist or GP.

What happens if I accidentally use too many drops?

Using more drops than needed is unlikely to cause serious harm given the nature of the ingredients, but it may cause temporary blurring or a watery sensation. Gently blot away any excess solution from around the eye with a clean tissue. If you are concerned or experience any unusual symptoms, contact your pharmacist for advice.

Can I use Optase Allergy Eye Drops alongside oral antihistamines for hay fever?

Yes — using these drops alongside oral antihistamines is a common and practical approach to managing hay fever symptoms that affect both the eyes and other areas such as the nose and throat. No interactions between sodium hyaluronate or ectoine eye drops and oral antihistamines have been identified. If you're looking for oral hay fever treatments, our allergy and hay fever range has several options.

What are the alternatives to Optase Allergy Eye Drops?

Alternatives include sodium cromoglicate eye drops (a mast-cell stabiliser available OTC), antihistamine eye drops such as azelastine, and lubricating drops without specific anti-allergy ingredients. The right choice depends on the severity of your symptoms and whether you prefer a pharmacological or physical barrier approach. Speak to your pharmacist for a personalised recommendation.

How long can I use Optase Allergy Eye Drops for?

These drops can be used for as long as your allergy symptoms persist, whether that's a few weeks during pollen season or on a longer-term basis for perennial allergic conjunctivitis. Because they are preservative free and do not contain steroids, they are considered safe for extended use. However, if your symptoms are not improving after a week or two of regular use, it is worth seeking a review from your GP or optometrist.

Do Optase Allergy Eye Drops contain steroids or antihistamines?

No — Optase Allergy Preservative Free Eye Drops do not contain steroids or antihistamines. They work through the physical and protective properties of sodium hyaluronate and ectoine rather than through pharmacological suppression of the immune response. This makes them suitable for regular use without the risks associated with topical steroid eye drops, such as raised intraocular pressure.

Are Optase Allergy Eye Drops safe to use during pregnancy?

Topical eye drops have very low systemic absorption, which means very little of the active ingredients enters the bloodstream. Sodium hyaluronate and ectoine are not known to be harmful during pregnancy, but as a precaution you should always consult your GP or midwife before using any new product during pregnancy or whilst breastfeeding. They can help you weigh up the benefits against any theoretical risks.

What is the latest research on ectoine in eye drops for allergies?

Ectoine has been studied for its ability to form a hydration shell around biological structures, protecting cells from environmental stress including allergens and inflammatory mediators. Published research has shown it can reduce the release of pro-inflammatory cytokines on the ocular surface, supporting its use in allergy eye drops. While research is ongoing, the existing evidence supports its role as a well-tolerated, non-pharmacological approach to managing allergic eye symptoms.

How should I store Optase Allergy Eye Drops and how long do they last?

Store the drops below 25°C, away from direct sunlight, and do not freeze them. Check the expiry date on the outer packaging before use and do not use any unit past that date. Each single-dose unit must be discarded immediately after a single use — they are not designed to be resealed or stored once opened, as this would compromise sterility.

How Should You Use Optase Allergy Preservative Free Eye Drops?

Using these drops correctly makes a real difference to how well they work. Always wash your hands before handling the single-dose units, and never touch the tip of the vial to your eye or any other surface. Follow these steps each time you use them:

If you wear contact lenses, remove them before instilling the drops and wait at least 15 minutes before reinserting. Avoid rubbing your eyes after use, as this can worsen irritation.

What Is the Correct Dose of Optase Allergy Eye Drops?

The standard dose is one to two drops instilled into each affected eye. There is no strict daily maximum, but you should use only as many applications as needed to manage your symptoms comfortably. If you feel you need the drops very frequently, speak to your pharmacist.

When Is the Best Time to Use Optase Allergy Eye Drops?

Use the drops whenever your allergy eye symptoms flare up — there is no fixed time of day. Many people find it helpful to use them in the morning before going outdoors during high pollen periods, and again in the evening after returning home. If your symptoms are triggered by a specific exposure (such as being around pets), using the drops shortly after exposure can help settle irritation more quickly.

Avoid using the drops immediately before driving or operating machinery, as temporary blurred vision can occur after instillation. Wait until your vision has fully cleared before doing so.

How Long Can You Use Optase Allergy Eye Drops For?

These drops can be used throughout your allergy season or on a longer-term basis if you have year-round allergic conjunctivitis. Because they are preservative free and contain no steroids, they do not carry the risks associated with prolonged steroid eye drop use, such as raised intraocular pressure. That said, if your symptoms persist or worsen despite regular use, or if you develop eye pain, significant redness, or changes in vision, stop using the drops and consult your GP or optometrist promptly.

Do not exceed the recommended dose. If in doubt, speak to your pharmacist.

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What Are the Most Common Side Effects of Optase Allergy Eye Drops?

Most people tolerate Optase Allergy Preservative Free Eye Drops well, and side effects are generally mild and short-lived. The most frequently reported reactions occur immediately after instillation and resolve within a few minutes.

  • Brief stinging or burning sensation in the eye
  • Temporary blurred vision immediately after use
  • Increased watering of the eye shortly after instillation

These reactions are not usually a cause for concern. Blinking gently after instilling the drops helps spread the solution and can reduce any initial discomfort. Avoid rubbing your eyes, as this can worsen irritation.

What Are the Less Common Side Effects of Optase Allergy Eye Drops?

Less commonly, some people may notice the following after using these drops. These effects are still generally mild, but you should monitor them and stop use if they persist.

  • Mild redness of the eye or surrounding skin
  • A sensation of something in the eye (foreign body sensation)
  • Eyelid irritation or swelling
  • Sensitivity to light (photophobia)

If any of these effects last more than a short time after using the drops, or if they seem to be getting worse with repeated use, discontinue the product and seek advice from your pharmacist or GP.

What Are the Serious Side Effects of Optase Allergy Eye Drops?

Serious side effects are rare with these drops, given that the active ingredients — sodium hyaluronate and ectoine — are well tolerated and have a strong safety profile. However, you should seek urgent medical attention if you experience any of the following, as they may indicate a more serious underlying condition rather than a reaction to the drops themselves:

  • Sudden or significant loss of vision
  • Severe eye pain that does not resolve
  • Purulent (pus-like) discharge from the eye
  • Marked swelling of the eyelids or face
  • Signs of a severe allergic reaction, such as difficulty breathing, rash, or swelling of the lips or throat

What Should You Do If You Experience Side Effects?

If you notice any side effect that concerns you, stop using the drops and contact your pharmacist or GP. For mild reactions such as brief stinging, no specific action is needed beyond waiting for the sensation to pass. Do not attempt to treat a suspected eye infection or serious eye condition with these drops — they are designed for allergic symptoms only and will not address bacterial or viral causes of eye inflammation.

Keep a note of when the side effect occurred and how long it lasted, as this information will help your healthcare professional advise you more accurately.

Can Optase Allergy Eye Drops Interact With Other Medicines?

No clinically significant interactions between sodium hyaluronate or ectoine eye drops and other medicines have been identified. However, if you are using other eye drops or eye ointments at the same time, leave a gap of at least 5–10 minutes between each product. Always apply eye ointments last, as they can prevent other drops from being absorbed properly. If you are using prescription eye drops for a condition such as glaucoma, speak to your GP or ophthalmologist before adding any new eye product to your routine.

If you are concerned about any side effects, contact your pharmacist or GP immediately.

Patient Information Leaflet

Important - Before taking any medication, it is always important to read the Patient Information Leaflet (PIL)

Written and reviewed by our qualified team

GPhC Number: 2233073
Tarun Kumar

Reviewed by:

Tarun Kumar

Superintendent/ Clinical Lead

📖 Find out more about our team of medical content authors and how we ensure the accuracy of our content with our content guidelines.

Content last updated: 31 Mar 2025

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