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Encore Premium (Frequency 55 Aspheric)

Encore Premium (Frequency 55 Aspheric)

$15.99 Lowest price


Encore Premium (Frequency 55 Aspheric) Contact Lenses 1 box - 6 pack / lenses - 6 month supply

Encore Premium (Frequency 55 Aspheric)
Rating: 9.7/10  26 Reviews
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$15.99 Lowest price

Reg: $61.00

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Encore Premium (Frequency 55 Aspheric) Details & Parameters

Manufacturer: CooperVision
Lens type: Monthly Disposable
Each box contains: 6 lenses, a 6-month supply
Water Content: 55%
Oxygen transmissibility: 23.5 Dk/t
Recommended wearing time: Daily wear or up to 6 nights/7 days extended wear
Replacement schedule: Monthly
Availability: In stock
Rebate: No
Cost per day: $0.09
Customer rating: 9.7/10
Visibility tinted: Yes
% Lens Material: 45% methafilcon A
FDA material group: Group 4 >50% water ionic polymer
Disinfection Method: Multi-Purpose solution
Lens design: Aspherical
Diameters: 14.4 mm
Base curves: 8.3 (8.4) mm, 8.6 (8.7) mm
Sphere powers: -10.00D, -9.50D, -9.00D, -8.50D, -8.00D, -7.75D, -7.50D, -7.25D, -7.00D, -6.75D, -6.50D, -6.25D, -6.00D, -5.75D, -5.50D, -5.25D, -5.00D, -4.75D, -4.50D, -4.25D, -4.00D, -3.75D, -3.50D, -3.25D, -3.00D, -2.75D, -2.50D, -2.25D, -2.00D, -1.75D, -1.50D, -1.25D, -1.00D, -0.75D, -0.50D, -0.25D, +0.25D, +0.50D, +0.75D, +1.00D, +1.25D, +1.50D, +1.75D, +2.00D, +2.25D, +2.50D, +2.75D, +3.00D, +3.25D, +3.50D, +3.75D, +4.00D, +4.25D, +4.50D, +4.75D, +5.00D, +5.25D, +5.50D, +5.75D, +6.00D, +6.25D, +6.50D, +6.75D, +7.00D, +7.25D, +7.50D, +7.75D, +8.00D

Product Information

Spherical contact lenses have been the accepted standard for years, but these days there are more advanced options available. Aspheric contact lenses, like Encore Premium (also known as Frequency 55 Aspheric) made by CooperVision, provide sharper vision than ever before. Cutting-edge vision correction, however, is not the only thing Encore Premium contacts have to offer. In addition to spectacular clarity, they also provide lasting comfort and easy handling.

If you’re a regular contact lens wearer and are unfamiliar with aspheric lenses, now is the time to get informed; your vision can only get better for it. While spherical lenses have an even curve over the whole lens surface, the curve on the surface of aspheric lenses varies. This variation allows for the light entering the eye to be more precisely focused on the retina. More focused light results in sharper vision; blurred vision becomes a thing of the past. Created using CooperVision’s patented UltraSync technology, Encore Premium contact lenses are consistently made with high quality and precision. These lenses are easy to handle, durable, and very comfortable. Made from 45 percent methafilcon and 55 percent water, Encore Premium lenses provide lasting moisture. The lenses are also ultra thin and made to resist deposits that can otherwise build up and irritate eyes


Encore Premium are monthly contact lenses. As such, these contacts can be worn for up to 30 days before being replaced with a fresh new pair. They are made for daily use, which means that they can be worn all day, but need to be removed, cleaned, and stored in disinfecting solution at the end of each day. Sticking to this schedule helps ensure your eye health is maintained. On top of the comfort and clarity, Encore Premium are also easy to use. Being small in size and appearing transparent, contact lenses are not always easy to see when they are floating in solution or if they happen to be dropped. Encore Premium contacts have a built-in handling tint to make them much easier to spot. The tint makes handling simpler, but won’t alter the color of your eyes when they are in use.

Of course, it’s perfectly understandable to assume that monthly contacts with all of these innovative features would come with a hefty price tag. On the contrary—CooperVision’s Encore Premium are remarkable in this respect too, as these lenses are incredibly reasonably priced. This is especially true when you shop on We keep close tabs on competitor prices so you do not have to—we want to make sure we’re providing the best value in contact lenses. With hassle-free returns, 100% money-back satisfaction, and quick shipping, you can’t go wrong with purchasing your contact lenses from

Encore Premium (Frequency 55 Aspheric) FAQs

How many boxes of Encore Premium (Frequency 55 Aspheric) do I need to buy to last 6 months, or 12 months?

You need 1 box(es) of Encore Premium (Frequency 55 Aspheric) contacts to last you for 6 months. In order to last you for 12 months, you'll need 2 box(es). These amounts pertain to a single eye, so to cover both eyes, double these amounts.

Can you take a nap in Encore Premium (Frequency 55 Aspheric) contacts?

Yes, you can nap in Encore Premium (Frequency 55 Aspheric) lenses. As Encore Premium (Frequency 55 Aspheric) is approved for overnight wear (a full night's sleep), napping in them for a short period of time is not a problem. As always though, make sure you're OK to do so with your ECP even if they are technically approved as every individual's situation is different. Whether sleeping overnight or napping with contacts, this is an environment that reduces the amount of oxygen that reaches your eye, hence the precautions you need to take in terms of choosing the right lens.

Is ordering Encore Premium (Frequency 55 Aspheric) contact lenses online safe?

Yes, all contact lenses, including Encore Premium (Frequency 55 Aspheric) ordered from are FDA-approved, genuine lenses manufactured by top contact lens brands such as Bausch + Lomb and Alcon, and backed by a money-back guarantee. Order and fulfillment processes adhere to mandates set by US federal law, including the requirement to verify valid prescriptions, without exception. We go above and beyond, by making the experience efficient, easy, and pleasant with 24/7/365 customer service and a money-back guarantee.

Can I use my eyeglass prescription for Encore Premium (Frequency 55 Aspheric) contact lenses?

Unfortunately no, you can't use your eyeglass prescription for Encore Premium (Frequency 55 Aspheric) lenses. Your eyeglass prescription only has the power part of the contact lens prescription. In addition to the power, the proper base curve (BC) and diameter (DIA) are needed to order contact lenses. Contact lenses come in different sizes and must be fit to your eye by an Optometrist or Ophthalmologist. As a replacement center, we can only sell you contact lenses that you are already wearing successfully. So ultimately eyeglass prescriptions are not the same as a prescription for Encore Premium (Frequency 55 Aspheric) contacts. See an ECP/optometrist if you're looking for a contact lens prescription and fitting as a first-time-wearer.

Are Encore Premium (Frequency 55 Aspheric) sold on authentic? Why is it cheaper than other vendors?

Yes, all contacts sold on are 100% authentic, including Encore Premium (Frequency 55 Aspheric) and come with a money-back guarantee. is able to sell contacts extremely competitively by buying and selling in volume, by smartly managing costs and overhead, and by accepting smaller but fairer profit margins versus other e-tailers and ECPs in exchange for building a satisfied customer base. We stand by our product and offer 24/7 live-customer support.

Where can I buy Encore Premium (Frequency 55 Aspheric) contacts?

Encore Premium (Frequency 55 Aspheric) lenses are available to purchase at online retailers, some brick-and-mortar stores, and eye care professionals near you. The lowest prices and largest selections can typically be found online where retailers can take advantage of high volume and lower costs which can benefit customers. offers exclusive rebate/rewards savings.

Can I buy Encore Premium (Frequency 55 Aspheric) for someone else?

Yes, you can buy Encore Premium (Frequency 55 Aspheric) contacts online for someone else, for example a child or someone you're assisting with making a purchase. The same simple steps apply. At you'll only need to know what contacts you want, their prescription, the contact info of the person's ECP (for prescription verification), and a credit card. We'll do the rest! 

How do I read my Encore Premium (Frequency 55 Aspheric) prescription?

Contact lens prescriptions, including for Encore Premium (Frequency 55 Aspheric) contacts, follow a standardized format and use abbreviated terms. There are values for power, base curve, diameter, and other parameters, some of which you'll need to specify when ordering contacts. Click here, to see further info on how to read your Encore Premium (Frequency 55 Aspheric) contact lens prescription.

How do I buy Encore Premium (Frequency 55 Aspheric) contacts online?

To buy Encore Premium (Frequency 55 Aspheric) contacts online, you'll need a credit card, the quantity you want to order, and the name of your eye doctor. That's the bare bones. We can contact your eye doctor to confirm your prescription on your behalf. If you have a physical copy of your prescription, great, then we won't need to contact your eye doctor. it's very simple, and if you have any difficulties, our friendly Customer Service Representatives are here to help. These steps are based on rules laid out by federal policy to protect consumer rights and we take full advantage of them to ensure an easy and timely experience for you.

Do I need an rx/prescription to buy Encore Premium (Frequency 55 Aspheric) contacts online?

Yes, you do need a valid prescription to buy Encore Premium (Frequency 55 Aspheric) contacts online. A prescription is required to buy any type or brand of contact lens, either online or in a store, without exception. What is not needed is a physical copy of your valid prescription. We need only to verify the existence of this, which is filed by your ECP, and we can do this for you. This is required by US federal law. Prescription verification is easy at We have several methods some of which avoid the need to contact your OD.

Are online Encore Premium (Frequency 55 Aspheric) contact lenses the same as from your eye doctor?

Yes, generally, Encore Premium (Frequency 55 Aspheric) contacts purchased online are the exact same lenses you purchase in a store or a doctor's office. The guarantee that this will be the case of course varies based on where online you make your purchase. At, all contacts are authentic, FDA-approved, and the same as you might purchase from your ECP but at a discounted price, thanks to our lower cost and better volumes.

How to tell if my Encore Premium (Frequency 55 Aspheric) contacts are inside out?

You will know Encore Premium (Frequency 55 Aspheric) contacts are inside-out if they feel uncomfortable in your eye. An inside-out contact lens will also move too much when you blink, and they may even pop out. Some contacts feature an inside-out mark that can be checked once removed, but this is not the case with all lenses.

Can I be allergic to Encore Premium (Frequency 55 Aspheric) contacts?

Contacts, like Encore Premium (Frequency 55 Aspheric) are made of hypoallergenic materials, meaning the contacts themselves don't usually cause an allergic reaction. In most cases, what causes an allergic reaction is a buildup of contaminants on the contacts. If you experience redness, watering, and other symptoms of a possible allergic reaction, remove your contacts immediately and consult your ECP.

Can I renew my Encore Premium (Frequency 55 Aspheric) RX/prescription online?

Yes, you can renew your prescription of Encore Premium (Frequency 55 Aspheric) lenses online. At we need only your previous prescription to begin the quick process of renewing your prescription online, and it takes only 10 minutes. In fact, you can renew any contact prescription, for any brand with, including for a prescription for glasses. Of course, this service is only available in the 37 states which are not under the thumb of the American Optometric Association. Check here to see if you live in a privileged state.

How many boxes of Encore Premium (Frequency 55 Aspheric) do I need to buy to last 12 months?

You need 2 box(es) of Encore Premium (Frequency 55 Aspheric) contacts to last you for 12 months. These amounts pertain to a single eye, so to cover both eyes, double these amounts.

Can Encore Premium (Frequency 55 Aspheric) contacts expire?

Like all contact lenses, Encore Premium (Frequency 55 Aspheric) lenses do expire. The expiration date will be stamped on the box itself or on the aluminum fold of the blister pack in either a YYYY-MM or YYYY-MM-DD format. Typically, the expiration date for contacts is several years after the date of packaging.

What is the water content of Encore Premium (Frequency 55 Aspheric)?

Encore Premium (Frequency 55 Aspheric) contacts have a water content of 55%. The higher the water content in a contact lens, the more oxygen reaches the cornea during lens wear. There are other factors at play however so water content alone isn't enough of a factor to judge a lens' performance for a given person. High water content lenses can feel comfortable initially but may dry out over time, but this is not always the case. So it's good to know about the water content of a lens, but it's not everything. Consult your ECP to find out the best options for you.

Where can I buy Encore Premium (Frequency 55 Aspheric) contacts near me?

Encore Premium (Frequency 55 Aspheric) contacts are typically available to purchase at your nearest brick-and-mortar eyewear store or ECP's office. However, the lowest prices and largest inventory of these lenses can be found online, such as at, where greater volumes and lower overhead can translate into significant savings over store-bought contacts.

How should I store my Encore Premium (Frequency 55 Aspheric) contact lenses?

Daily disposable contacts cannot be stored and must be discarded at the end of each day. Even if you wear them for only a few hours one day, you still need to discard them after that use and wear a fresh pair of contacts the next day. 

You may keep weekly contacts in multi-purpose contact solution in a tightly closed contact lens case for up to 2 weeks. 

For monthly replacement lenses you may store them in contact solution in a tightly closed contact lens case for up to 30 days.

Is Encore Premium (Frequency 55 Aspheric) discontinued?

No, Encore Premium (Frequency 55 Aspheric) contacts have not been discontinued by CooperVision. They continue to be produced, marketed, and sold on Typically, if a contact lens ceases to be produced by the manufacturer, we will indicate it clearly on our product page as being a discontinued lens and it won't be an option to purchase them.

Are Encore Premium (Frequency 55 Aspheric) contacts, monthly?

Yes, Encore Premium (Frequency 55 Aspheric) contacts are monthly disposable contacts. They are meant to be worn daily for 30 days, removed, cleaned and stored at night, and disposed of after 30 days to be replaced with a fresh set.

Do I need a prescription, or a copy of my prescription in order to buy Encore Premium (Frequency 55 Aspheric)?

Yes, you do require a valid prescription in order to buy Encore Premium (Frequency 55 Aspheric) or any contacts in the United States, per Federal Law. However, at having a copy of your prescription in your possession is not required to place an order (though be aware it's something that is owed to you by your ECP once you complete an eye examination so that you can choose where to purchase your contacts). If you don't have a copy in your possession, representatives will help verifying your prescription by calling your ECP for you. Provide us with the basic information, sit back, and relax.

Who makes Encore Premium (Frequency 55 Aspheric) contacts?

Encore Premium (Frequency 55 Aspheric) contacts are made by CooperVision, and sold on

Encore Premium (Frequency 55 Aspheric) Reviews


Cost and speed of delivery

The fit is great and the rate if delivery is quick. Plus the cost is much less than other places.


Love them!

I wish I would have gone to these years ago. I love them - always fresh!

Paul Steinberg

I can see

I can see with them on my eye. I just wish my eyes were a little moister.

Paul Steinberg


I purchased these lenses close to 8 years ago and I've decided to start wearing contacts again because I dug up a few lenses. They have a LONG shelf life, still good and I've decided to take advantage of the great price.


Best fit

My fav product for decades. Thin, very wearable and easy (no-rub) clean, so ideal lens solution for monthly use.
Should never be discontinued.


Encore Premium (Frequency 55 Aspheric) Change Pro

They are comfortable and work well.




Nancy Brown

Always happy!!

I have worn Encore Premium for many years. Price is reasonable and they are very comfortable.

Nancy Brown

Favorite contacts

Been wearing these for a long time, they last longer and are more comfortable to my eyes.