Frequently Asked Questions

Got a question about ordering contact lenses online? We're here to help! Our handy FAQ covers everything from payment methods and Vision Direct promotional codes to getting started with contact lenses for the first time. Need help? Give our friendly customer services team a call on 020 7768 5000 or email us: info@visiondirect.co.uk.

Ordering From Vision Direct

  • Do I need my prescription to order contact lenses from Vision Direct?

    During the checkout process we give you 2 options.

    1. The first option allows you to confirm your prescription details are correct and place your order through our European company Vision Direct BV. If you choose this option you do not need your prescription. We only recommend customers who know their prescription to use this option as we will not be able to check.

    2. The second option allows you to select for us to verify your prescription is correct, either by you providing us with a copy of your prescription uploaded to your account or with your optician's contact details so we can confirm with your optician that your details are correction.

    Please note that you'll only be asked the first time you checkout of your prescription checking preference. If you wish to change it later, you must do so under the prescription section of your account.

  • What payment methods can I use?

    We accept all major UK credit and debit cards, including: MasterCard, Visa, Maestro, Visa Electron and Solo. We also accept PayPal payments.

  • Are debit/credit card payments on Vision Direct safe?

    Yes, card payments are totally secure. We use the most advanced payment security channels possible, update them regularly and we have never once heard of a credit or debit card being misused as a result of a transaction with us. What's more, when you pay online, no one at Vision Direct can see your full card details – just the last four digits of the long number for verification purposes. The https:// at the beginning of the URL verifies that it is a safe transaction

  • Can I order contact lenses for 1 eye only?

    Yes, to order contact lenses for one eye only, simply un-tick the left or right prescription box and proceed with your order.

    Product Page - Showing Tick Boxes for Left & Right Eye

  • How do I order if I wear a different brand of contact lenses in each eye?

    Simply un-tick the left or right prescription box on the product page and add to basket. Do the same for your second product.

  • What values do I enter in the prescription information fields?

    On the product page for your contact lenses you will be asked to enter your prescription details.

    From left to right the different specifications mean:
    Base Curve (BC): The curvature of the lens in millimetres usually between 8.3 and 9.0.
    Diameter (D): The diameter of the contact lens. This number ranges from between 13.8 to 14.5.
    Power (PWR/SPH): Is a + or – figure followed by a number e.g. -4.50 or +0.25. This represents the level of visual correction needed, and whether your lenses correct long-sightedness (plus/+ powers) or short-sightedness (minus/- powers). For some contact lenses the power may also be 0.00, plano or displayed with this symbol ∞ which is for non-prescription use e.g. coloured contact lenses.
    If you have astigmatism the following values will also be required:
    Cylinder (CYL): A minus number that increases in a scale of 0.25 dioptres, ranging between -0.25 to -2.75.
    Axis (AX): A number between 0 and 180, that determines the direction needed to correct your astigmatism.
    If you wear multifocal contact lenses the following values will also be required:
    Addition (ADD): A + number between 0.50 and 3.00, or referred to as high, medium or low. This is an additional power that determines the level of correction needed for you to focus on near objects.
    Dominant (D): A choice between "D" and "N" to determine which is the dominant and the non-dominant eye.
    Please note: If only one option is given for any field, the lenses are only available with that option.
  • Do I need to tell my optician that I am ordering from Vision Direct?

    If you opt for us to verify your prescription with your optician, we will call them. However some opticians will need your permission to give us your prescription, we will notify you if this happens. If you choose to send us a copy of your prescription or you order through Vision Direct BV, you will not need to notify your optician.

  • How do I use a promotional code?

    If you have a promotional discount code, please enter this on the basket page. Please note: If you use a promo code for new customers and you have ordered from us before, the discount will show in your basket. However, once you log in our system will remove the discount from your order.

    Basket Page Showing Where to Enter Promotional Code

  • How do I cancel or amend my order?

    If you need to make a change or cancel your order after it has been paid for please contact our customer service team on 020 7768 5000 or email them at info@visiondirect.co.uk. Please be aware that orders will be picked and packed very quickly so we advise you to call us as soon as possible to avoid disappointment.

  • Can I order with a prescription from outside the UK?

    Unfortunately we cannot verify a prescription that was issued outside of the UK. However, if you are confident you know your prescription, you can choose for us not to verify it and we will process it through Vision Direct BV our European sister site.

Postage & Delivery

  • What delivery methods are available?

    Delivery Method Delivery Time Price
    Next Day Tracked Orders will arrive the next day after dispatch between Monday and Saturday. All orders over £49 are sent by a Tracked service. FREE - Orders over £49
    £2.98 - Orders of £49 or less

    Orders will be posted once the whole order is ready to be dispatched. Unfortunately we do not split orders.

  • Does Vision Direct ship to other countries?

    We ship to most international destinations, please see the table below for further details.

    Countries Delivery Methods Price
    Ireland Fastway (Tracked & signed for service) £4.98 - Orders over £49 £7.98 - Orders of £49 or less
    EU DHL Express (Tracked & signed for service) £4.98 - Orders over £49 £7.98 - Orders of £49 or less
    USA Royal Mail International Tracked £4.98 – Orders over £49 £7.98 – Orders of £49 or less
    Rest of the world DHL Express (Tracked & signed for service) £9.98 - Orders over £49 £12.98 - Orders of £49 or less

    DHL Express and Fastway are fully tracked and signed for services. If you're ordering from the USA please click here for more information.

  • When will my order be dispatched?

    We stock over 90% of all standard daily and monthly lenses and 99% of eye care products and aim to dispatch all stocked items on the same day if ordered before 5.30pm.

    Dispatch times for Toric, Multifocal and some high prescription contact lenses are stated on the product pages. Most non-stocked lenses will be dispatched within 2 -5 working days.

  • My order has been posted but hasn't arrived, where is it?

    Delivery Method Response
    UK Mail – Tracked Standard Please allow up to 3 working days for delivery via UK Mail. If you have not received your order by then please contact us on 020 7768 5000 or email us at info@visiondirect.co.uk
    DHL Express Please allow up to 5 working days for delivery via DHL if you are in the EU. If you live elsewhere please allow up to 8 days for delivery. If you have not received your order by then please contact us on 020 7768 5000 or email us at info@visiondirect.co.uk
    Royal Mail Interntional Tracked Please allow up to 7 working days for delivery via DHL if you are in the USA. If you have not received your order by then please contact us on 020 7768 5000 or email us at info@visiondirect.co.uk

    *Please note: All orders include a tracking number so that you can trace your order after dispatch. You can find this information in the email you received upon postage or via your Vision Direct account (Orders > Status > Track Order).

  • How do I track my order?

    You can track your order by clicking the "Track Order" link in your email or by visiting Your Account, under recent orders on the first page you should see a link to "Track Order" in the status column.

    How to track your order

Returns & Refunds

  • I've received the wrong order

    In the event that you receive the wrong items, please let us know and we will post the correct items to you immediately.

    We ask that you return the order to the following freepost address (UK customers only):

    FREEPOST VISION DIRECT
    *Write only this in capital letters on your package.

    For international customers please return your order to the following address:

    Vision Direct BV
    Distelweg 80-G
    1031hh
    Amsterdam
    The Netherlands

  • My order was damaged in transit

    If your order was damaged in transit, please call us on 020 7768 5000 or email us at info@visiondirect.co.uk. A damaged or broken outer box will not affect your contact lenses. If the individual casing protecting your lenses is not damaged, or open, they will be perfectly safe to use.

  • Can I return my contact lenses if my prescription has changed?

    Yes. If your prescription has changed and your contact lenses were purchased in the last 6 months you can return any unopened, undamaged and unmarked boxes of contact lenses. We will then post the same lenses with your new prescription (if you're ordering through co.uk we'll need to verify your new prescription), or issue a refund.

    For UK customers we have a freepost address for all returned items, it is:

    FREEPOST VISION DIRECT
    *Write only this in capital letters on your package.

    For international customers please return your order to the following address:

    Vision Direct BV
    Distelweg 80-G
    1031hh
    Amsterdam
    The Netherlands

  • I think my order contains faulty contact lenses

    If you experience a split or faulty contact lens, please contact our customer service team on 020 7768 5000 or email us at info@visiondirect.co.uk. Although we cannot always replace faulty lenses, we can offer you store credit to cover the cost of the affected lenses.

    If possible do not discard your faulty contact lens until you have spoken to customer service. They will require both the lens and the LOT number of the defective lens to report the fault direct to the manufacturer. You may also be required to send the lens for inspection.

  • How long will it take for my refund to be credited to my bank/paypal account?

    All refunds should appear in your bank account within 7 working days of being processed. Please be aware that refunds will not be processed until the returned items have been received at our warehouse.

  • My contact lens has split what should I do?

    If you split your contact lens, simply call our customers service team on 020 7768 5000 or email us at info@visiondirect.co.uk, and they will arrange a replacement, or give you store credit to cover the cost of the affected lens. However if you are finding this happens more than once you should arrange a 'teach' with your optician as you may not be inserting or removing your lenses correctly.

Contact Lens Questions

  • Can I try different contact lenses?

    Yes you can try different contact lenses. However it is always best to speak to your optician before doing so. Our resident optician, Benjamin has produced a 'Contact Lens Guide' to better inform our customers of compatible and upgrade lenses for all contact lenses. You can view the guide here.

  • How long can I wear my contact lenses?

    When you receive your contact lens prescription from your optician, you should be informed of the wearing pattern compatible with your lenses. The most common contact lenses are disposed of daily, or cleaned and stored overnight for wear over a two-week or monthly time period. Some contact lenses are designed for extended wear; this means they can be worn continuously for a certain time period. It is not advisable to wear your contact lenses continuously without consulting your optician first as not everyone's eyes are compatible with extended wear lenses.

  • Are dry gritty eyes normal for contact lens wearers?

    Some contact lens wearers do suffer with dry and gritty eyes. Environmental factors such as air conditioning and heating, the position you sit in and the amount of water you drink can also affect your eyes. It could also be the contact lenses you are wearing. For example, Focus Dailies All Day Comfort lenses should not be worn for more than 8 hours a day. However, Acuvue Trueye can be worn for up to 16 hours a day as they are made from silicone hydrogel which allows more oxygen to reach the eye. You can use artificial tear or eye drops as they are better known to help to rewet and moisturise the eye or you can talk to your optician about changing your lenses to suit your lifestyle.

  • Can I sleep in my contact lenses?

    Extended wear contact lenses are designed to be slept in. However, it is always best to consult with your optician to see whether extended wear lenses are compatible with your eyes.

  • What solution should I use to clean and care for my contact lenses?

    Multi-Purpose Solution is suitable for use with most soft contact lenses. Our customer service team can advise you on the best solution for your contact lenses. You can contact them by phone on 020 7768 5000 or by email info@visiondirect.co.uk.

  • How often should I replace my contact lens case?

    You should replace your contact lens case every three months (at least) to stop the build-up of dirt and debris from transferring to your lenses.

  • What are "toric" or contact lenses for "astigmatism"?

    Contact lenses containing the word "Toric" or "Astigmatism" e.g. 1-Day Acuvue Moist for Astigmatism or PureVision Toric are for patients with an astigmatism. Astigmatism is where the curvature of the lens is irregular causing vision to become blurred and out of focus.

  • Do I need to purchase my contact lenses from the optician that prescribed them to me?

    No you do not need to purchase your lenses from the optician that prescribed them. You can purchase your contact lenses from any optician or online contact lens retailer.

  • Why have I been prescribed these contact lenses?

    When you attended a contact lens fitting with your optician they would have determined the contact lenses that best fit your eyes and lifestyle. It is very important to tell your optician what you wish to wear your lenses for, how many days a week and for how many hours a day. We have produced a 'Guide to Contact Lenses' to help our customers choose the lenses that are right for them.

  • What are silicone hydrogel contact lenses?

    Silicone hydrogel contact lenses are the latest lenses available on the market, designed for extensive wear and optimal comfort. They allow up to five times more oxygen to meet the eye than traditional soft hydrogel lenses, making them an excellent choice for someone who likes to wear their lenses for 14+ hours, or suffers from dry eyes.

  • Should I put make-up on before or after putting my contact lenses in?

    You should always put your contact lenses in before applying make-up to avoid getting any on the lens, which can cause discomfort in the eye. When it comes to removing make-up it is best practice to remove and clean your lenses first before taking off your make-up.

  • Is my contact lens inside out?

    When applying your contact lens you can tell whether the lens is inside out by examining the shape of the lens on your finger. If the lens looks like a small bowl or "U" it's the right way, if the edges curve outwards, making the exterior look sharp and pointed then it's inverted.

  • Can contact lenses block UV light?

    Yes some contact lenses can help to filter out damaging UVA and UVB light.

    Acuvue is the only brand where all its contact lenses have UV blocking technology.

    Other UV filtering lenses include: Avaira, Avaira Toric, Biomedics 55 Evolution, Biomedics Toric and everclear 1 DAY.

    If you are not sure whether your lenses include UV absorbing technology speak to your optician.

  • Can you lose a contact lens at the back of your eye?

    Do not worry; it is impossible to lose a contact lens in the back of your eye. Sometimes the lens can become stuck under the eyelid but it can easily be dislodged by looking in the direction of the lens or rubbing the eyelid gently, otherwise your optician will be able to retrieve it for you by lifting your eyelid.

  • Are lenses for left and right eye specific for those eyes?

    Yes, if you have different prescriptions in each eye. If you have the same prescription in both eyes it doesn't matter which lens goes in which eye.

Prescription Queries

  • Where can I find my contact lens prescription?

    Your contact lens prescription or lens specifications are printed on the end or side of your contact lens box and labelled on the top of the blister packs that contain your lenses. Your optician will hold a copy of your written prescription; you are legally entitled to have a copy of this once you have completed your initial contact lens trial.

  • What details should my prescription include?

    All contact lens prescriptions include a least three values: base curve, diameter and power. However for toric or multifocal lenses additional values will be added to the prescription, usually no more than four.

    The specifications you can expect to see are as follows:
    Base Curve (BC): The curvature of the lens in millimetres usually between 8.3 and 9.0.
    Diameter (D): The diameter of the contact lens. This number ranges from between 13.8 to 14.5.
    Power (PWR/SPH): Is a + or – figure followed by a number e.g. -4.50 or +0.25. This represents the level of visual correction needed, and whether your lenses correct long-sightedness (plus/+ powers) or short-sightedness (minus/- powers). For some contact lenses the power may also be 0.00, plano or displayed with this symbol ∞ which is for non-prescription use e.g. coloured contact lenses.
    If you have astigmatism the following values will also be required:
    Cylinder (CYL): A minus number that increases in a scale of 0.25 dioptres, ranging between -0.25 to -2.75.
    Axis (AX): A number between 0 and 180, that determines the direction needed to correct your astigmatism.
    If you wear multifocal contact lenses the following values will also be required:
    Addition (ADD): A + number between 0.50 and 3.00, or referred to as high, medium or low. This is an additional power that determines the level of correction needed for you to focus on near objects.
    Dominant (D): A choice between "D" and "N" to determine which is the dominant and the non-dominant eye.
  • Can I change my lens type from those specified on my prescription?

    We would advise that you speak to your optician about changing the type of lenses you wear. However, our optician Benjamin has put together a list of compatible and upgrade lenses for all contact lenses. So you can see what the compatible monthly or daily would be for your current lens and discuss this option with your optician. You can view our contact lens guide here.

  • How often should I have my eyes tested?

    It is recommended that everyone attends an eye test at least every two years. Contact lens wearers need to attend an additional check-up to ensure their lenses still meet their prescription; this is usually every 12-24 months dependent on the recommendation of your optician.

  • What is meant by a valid prescription?

    A valid prescription is one that is in date. On your written prescription there should be an expiry date given. Most prescriptions are valid for a year from the date of your last contact lens check-up.

  • If my vision is blurry can I change my prescription/power?

    It is always best to consult your optician if you feel your vision has become blurred and unfocused. You may have a slight astigmatism or you may simply need stronger lenses. Although you can self-prescribe the next available power this is not recommended by Vision Direct.

  • My optician won't give me my contact lens prescription, is this correct?

    By law you are legally entitled to own a copy of your contact lens prescription. If you did not receive a copy of your prescription at your last contact lens fitting you can request it by fax, email or post from your optician. The only time your optician is not obliged to supply you with a prescription is when you are still trialling a new pair of contact lenses.

  • Is the prescription for my glasses the same as my contact lens prescription?

    No, a contact lens prescription is not the same as a prescription for glasses. Your contact lens prescription will include extra specifications which ensure your lenses fit with the correct diameter and base curve.

    A contact lens prescription also differs from a glasses prescription as the power/sphere values are ranked differently, so your lenses and glasses powers won't necessarily match. It also differs for patients with astigmatism.

  • I don't have my prescription. Can I still order?

    If you cannot locate your written prescription but are 100% sure of your prescription you can still order from Vision Direct. At checkout you must choose to proceed without us verifying your prescription, this means that we will not check with your optician to ensure you have ordered the correct specifications. It is always best to check the prescription details entered against those on your contact lens box to ensure they are correct, as we cannot refund open contact lens boxes.

My Vision Direct Account

  • I've forgotten my password

    If you've forgotten your password simply click "Did you forget your password?" and tell us your email address, we will send you a randomly generated password so that you can login. Once in your account you can modify your password in the dashboard if you wish.

  • How do I change my account email/password/address?

    To change any of your account details, visit your account dashboard by clicking on the "My Account" link in the top right-hand corner of any page. Inside your account click on the "Details" tab and here you can modify your email address and password. To change your delivery address click the "Addresses" tab in your account dashboard and "Add New Address". You can also modify existing addresses by clicking on the "Change" link.

  • Will Vision Direct save my card details?

    Yes. When you checkout your card details will be saved in your account so that you do not need to re-enter them every time. If you wish to remove a saved card this can be done in Your Account under the "Saved Cards" tab.
  • How do I repeat a past order?

    In Your Account you will be able to see a summary of your recent orders, simply click the "Reorder Now" button on the right hand side and the same order will be added to your basket. You can modify the order before checking out.

    How to reorder

  • How do I set a reminder to reorder?

    You can set a reminder to reorder you contact lenses or solutions by visiting Your Account and selecting the "Orders" tab there you can add a reminder to any one of the orders you've made, by clicking "Set Reminder" in the Next Order column.

    Set reminder

  • How do I refer a friend?

    Give them your unique code which can be found in Your Account under "Refer a friend" or enter their email address on this page and we'll send them an email on your behalf. Once they enter your code at checkout, we'll give them 10% off their first order and you £5 store credit.

  • What are the terms and conditions for refer a friend?

    Your friend will receive 10% off their first Vision Direct order and you will receive £5 store credit once their order has dispatched. You can refer any friend or family member as long as they do not have the same contact lens prescription as you. Your friend's order must be over £30.

  • I have referred a friend but not received any store credit, what do I do?

    If you have checked under the "Store Credit" tab of Your Account to find your balance incorrect and no record of store credit in your history, please contact our customer service team. They are available on 020 7768 5000 or by email at info@visiondirect.co.uk Please be aware that store credit is only added once your friend's order has dispatched.

About Vision Direct

  • Who is Vision Direct?

    VisionDirect.co.uk is the UK's leading contact lens retailer, we can promise you that we really do love and understand contact lenses. We’ve been fulfilling customers’ orders since 1998, and we’re dedicated to providing you with a simple ordering process that minimises both the inconvenience of trips to the high street and prescription validation, allowing you to obtain your contact lenses in the fastest time possible.

  • Why is Vision Direct so cheap?

    At Vision Direct we buy large amounts of stock, so we can make huge savings that we like to pass directly onto our customers. We can save you up to 42% on your contact lenses and eye care products in comparison to the high street.

  • Why should I order from Vision Direct?

    At Vision Direct we don't only promise the same products from the same manufacturers as the high street optician, we also promise super-fast delivery direct to your door and the added convenience of ordering with or without a prescription. Our resident optician is always on hand to answer any questions you may have and our award winning customers service team are fully trained to answer questions relating to any of the products we sell.

  • What are your opening times?

    Our customer service team are available to take your call any day of the week from 8.00am to 8pm. They can be reached on 020 7768 5000 or by email at info@visiondirect.co.uk.

  • How can I contact Vision Direct?

    Our customer service team can be reached on 020 7768 5000 or by email at info@visiondirect.co.uk

  • What are Vision Direct terms and conditions?

    The Vision Direct Terms & Conditions can be found here.

  • What is Vision Direct privacy policy?

    The Vision Direct privacy policy can be viewed here.

Glossary

  • Glossary of Contact Lens Terms

    Term Definition
    Addition A figure used to determine the additional prescription strength needed for correcting near vision for those with presbyopia.
    Acuvue A brand of contact lenses manufactured by Johnson & Johnson.
    Air Optix A brand of contact lenses manufactured by Ciba Vision.
    Astigmatism Is a condition of the eye caused by an irregular curvature of the cornea, resulting in blurred and unfocused vision.
    Axis A value that determines the direction needed to correct astigmatism on a contact lens or glasses prescription.
    Base Curve The curvature of a contact lens in millimetres used to determine the fit of the lens on the eye.
    Bausch & Lomb Healthcare manufacturers of contact lenses, lens solutions and eye drops.
    Bifocal A lens that contains two prescriptions, often distance at the top and reading at the bottom.
    Biofinity A contact lens brand by CooperVision.
    Ciba Vision A manufacturer of contact lenses.
    Coloured Contact Lens A lens tinted or coloured for wear.
    CooperVision A manufacturer of contact lenses.
    Cornea Is the front part of the eye, which covers the iris and the pupil it is transparent and helps protect the eye from dust, germs and other harmful matter.
    Cosmetic Contact Lens A lens tinted with colour or with a fashionable design such as country flags, or movie eyes.
    Cylinder A figure required for patients with astigmatism that shows what level of correction is needed.
    Daily Disposable Contact Lens Is a lens designed to be worn for one day and then disposed of.
    Deposits Are debris or protein build up on the lens surface.
    Diameter The distance in millimetres from one end of a contact lens to the other. A value used in a prescription.
    Dioptre A unit of measurement used in optics to determine the refractive power of a lens.
    Disinfectant Solution A solution used to disinfectant contact lenses.
    Dominant A value required for multifocal contact lenses to determine which the dominant eye is referred to as the “D” value. The non-dominant is referred to as “N”.
    Enzyme cleaner A solution used to remove protein from the lens surface, can also occur in tablet form, in which the tablet is mixed with saline or disinfecting solution as directed.
    Extended Wear A contact lens designed for extended wear, is one that can be worn overnight.
    Fashion Contact Lens A lens tinted with colour or with a fashionable design such as country flags, or movie eyes.
    Focus Dailies A brand of contact lenses produced by Ciba Vision.
    Glaucoma A condition which causes gradual sight loss due to pressure within the eye.
    Hyperopia (long-sightedness) The loss of near vision but the ability to see into the distance clearly.
    Iris The coloured portion of the eye.
    Long-sightedness See Hyperopia.
    Monthly Disposable (Monthlies) Is a lens designed to be worn daily for a month and then disposed of.
    Multifocal A lens that corrects both short and long-sightedness, by using two different surface areas to correct near and distance vision.
    Myopia The loss of distance vision but the ability to see objects up-close clearly.
    Ophthalmologist A medical doctor that specialises in the treatment and diagnosis of eye diseases, and who is licensed to perform eye surgery.
    Optician A medical practitioner licensed to fit and supply glasses and contact lenses.
    Optometrist (OD) A medical practitioner trained to fit and supply glasses and contact lenses, as well as diagnose and treat certain eye diseases.
    Oxygen permeability The level of oxygen that can pass through the lens surface to the eye.
    Plano A contact lens made without a prescription usually for cosmetic use, such as a coloured contact lens.
    Power The value used to determine the strength of visual correction needed. This is sometimes referred to as the sphere.
    Presbyopia A degenerative condition of the eye that affects the near vision, it usually occurs in those over the age of 40's.
    Proclear A contact lens brand produced by CooperVision.
    PureVision A brand of contact lenses manufactured by Bausch & Lomb.
    RGP (Rigid Glass Permeable) A rigid lens made from a harder material than soft lenses, usually prescribed for patients with an astigmatism or irregular eye shape as they are thought to be better at correcting vision in these cases.
    Rinsing Solution A lens solution used to clean the lens before wear.
    Rewetting Solution A solution used to rewet the lens to increase comfort during wear.
    Solution A liquid solution designed to rinse, clean and store soft or gas permeable contact lenses.
    Short-sightedness See Myopia.
    Silicone hydrogel Is an advanced soft lens material that allows more oxygen to reach they eye than traditional soft hydrogel lenses.
    SoftLens A brand of contact lenses produced by Bausch & Lomb.
    Sphere The value used to determine the strength of visual correction needed. This is sometimes referred to as the power.
    Toric A contact lens used for correcting astigmatism in patients.
    Two Weekly Disposable Frequent replacement lenses designed for wear daily over a two week period before they should be disposed of.
    RX Prescription.
    Visibility Tint A light tint to the contact lens that helps the wearer with handling.
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