Prescription sunglasses: what you need to know

Sunglasses are a significant way to protect your eyes and ensure clear and comfortable vision on sunny days. In addition to temporary loss of vision, sunlight can cause long-term damage to the eyes. The UV radiation from the sun can also cause sunburn to the eyes and lead to serious illness over time.

For prescription eyeglass wearers, sun protection is available in several options, including prescription sunglasses, photochromic lenses, or clip-on sunglasses. The best solution depends on your personal preferences, comfort, and which option best suits your lifestyle.

Prescription sunglasses are available for almost all vision prescriptions, including farsightedness, nearsightedness, astigmatism, bifocals, and progressive lenses. You can wear any sunglasses with prescription lenses as long as the shape of the lens doesn’t distort vision. So if you like the new designer sunglasses, you should have no problem fitting prescription lenses into the frames in most cases.

There is a large selection now. You can purchase prescription sun lenses in various materials and coatings, including polarized lenses (for glare protection), tinted lenses, anti-scratch coatings, and many more.

Prescription sunglasses are a great solution when you prefer not to wear contact lenses or feel dry or irritated eyes (during allergy season or in dusty or sandy areas), when you are going to swim or when you simply don’t want to use contact lenses. They give you another option for comfort, safety, and excellent vision.

Who needs prescription sunglasses?

For those who need vision correction, for any medical conditions, and are also exposed to significant sunlight, prescription sunglasses are what you need.

Benefits of Prescription Sunglasses

There are many benefits associated with prescription sunglasses. Let’s look at them.

UV protection

Eye exposure to UV rays can cause such diseases as cataracts, macular degeneration, and corneal injury. The risk has increased, given the ongoing rampant climate change.

Prescription sunglasses come with a protective UV coating applied to the lenses. The coating blocks UV rays from reaching the eyes. Make sure they provide both UVA and UVB coverage when purchasing prescription sunglasses. The combination of both of these coatings provides almost 100% UV protection.

Clarity of vision

Since these sunglasses are also available by prescription, providing clear vision is one of their most important features. If you suffer from nearsightedness or farsightedness or any other condition that can be corrected with prescription glasses, you can also rely on prescription sunglasses.

Glare prevention

Glare is very common in bright sunlight conditions. It happens when light rays are reflected from the surface of the lens. Glare can be reduced to negligible levels by applying an anti-reflective coating to prescription sunglasses.

Protection of the skin around the eyes

The skin around our eyes is very sensitive. Exposure to the sun, even for a short time, can have a devastating effect on this part of the face. You should wear sunscreen at all times. While outdoors, by pairing it with sunglasses, you can provide an extra layer of protection to the sensitive part of your face.

Serves as a fashion accessory

Sunglasses have long been considered a fashion accessory. You can wear them for all occasions, and they suit every mood.

At Ossa Frames, you will get the right glasses with fast delivery. You can choose the most suitable pair from an extensive online collection.

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5 reasons to order glasses online

Old glasses can be outdated, worn, or lost, and we understand it’s time to order them. How to find time to buy and not make a mistake? How to save and not overpay? Each of us asks all these questions. We advise you to look around and decide what is closer to you – stationary optics or a computer, tablet, or mobile phone. Of course, this is our favorite gadget. It’s from here, according to statistics, that we begin to study the range of everything. A person spends a lot of time moving around the city. It’s on the road that he more often gets acquainted with the latest products of interest, whether it be appliances, clothing, or accessories. 

Where is the best place to buy glasses?

It depends on what is more important to you. If convenience and cost are a priority, buying glasses online may be your best bet.

So, it’s worth stopping the choice of shopping on the Internet:

• It’s comfortable

Imagine a situation when you decide to buy the necessary thing at night. In cozy home clothes, you leave the house and reach the store you are interested in. Oops, it’s closed. You can come and get acquainted with the range only at a fixed time and not always convenient for you. Mobile phones and online shopping are always with you. Buying glasses online is easy. You need access to the network, find a trusted glasses store and boldly place an order.

• It’s profitable

As a rule, competition on the Internet is much higher. It explains the lower and more reasonable prices for all goods, including glasses.

• Return of unsuitable products

When buying glasses online, you can return an inappropriate product, having read the return policy on the website in advance.

• Delivery speed

We strive to ship your item as soon as possible, making an online purchase of glasses convenient and fast.

• Save time

Imagine how much time you save going to the cinema to see a new movie or chatting with loved ones by ordering glasses online.
It would seem that there is a common opinion that it’s almost impossible to buy glasses on the Internet because “they need to be measured.” There are several face shapes, and it’s enough to know what kind of glasses fit your type. Also, when choosing, you can enter the necessary parameters of your prescription when buying lenses. When choosing a frame, use the filter to search by color, brand, and material. Buying glasses online is fast, convenient, and safe. 

Prescription lenses for everyone

Maintaining the eyes’ health and protecting them from the adverse environment is significant in our time. Taking care of your eyesight is easy now. After all, the choice of glasses is so great that everyone will choose the right ones for themselves, considering their characteristics.

Main differences between prescription glasses and contact lenses

Glasses provide more benefits than contact lenses. They don’t require special care and cleaning. In addition, there is no need to touch the eyes just to put them on, thus reducing the risk of eye infections. Glasses are also more affordable in the long run, as they don’t need to be changed so often.

Prescription glasses offer more benefits than contact lenses.

In addition, glasses can do things that contact lenses cannot. Glasses can adjust the amount of light entering the eye for optimal vision and comfort. Photochromic lenses, to be precise, are transparent indoors at night. They can also automatically darken in the sun for comfortable, clear vision in any light. While some contact lenses can block some UV rays from entering your eyes, photochromic eyeglass lenses can block 100% of UV rays and protect the inside of your eyes and the eyelids and outer part of your eyes.
Glasses also serve as an extension of your character and personality and make the perfect fashion statement.

Benefits of prescription glasses

• Wearing glasses reduces the need to touch your eyes and, as a result, reduces the chance of developing eye infections or eye irritation.
• If you have sensitive or dry eyes, glasses will not make the problem worse than contact lenses.
• In general, prescription glasses are more affordable than contact lenses.
• There is no need to change glasses as often, except, of course, accidentally broken ones. If there is ever a prescription change over time, you can keep the current frames and replace only the lenses.
• Frames can also be trendy and say a lot about your style and personality.
• Glasses protect against various environmental factors such as debris, dust, and wind.
We are glad to announce that we are launching a new service in the online store – the sale of prescription glasses. Now you can order individual prescription glasses online without leaving your home.
How to make an order:
• choose a frame in the custom glasses section;
• in the product card, select the lens and coating for the frame and put it in the shopping cart;
• enter the details of your prescription, issued no later than one year ago.
Glasses at Ossa Frames are available in different shapes, colors, and sizes, so you are sure to find your perfect pair of glasses here! To make your search easier, use the provided filters by brand, shape, material, price, and even color.
Follow these simple steps, and get new glasses quickly and conveniently.

Pupillary distance: what need to know

Pupillary distance (PD) is the distance between your pupils that determines comfort and how well your glasses fit. Having a PD is just as considerable as your prescription when it comes to ordering a new pair of prescription glasses or sunglasses. The average value of the pupillary distance for an adult is about 63 mm.

After all, measurements can vary widely – between 51 mm and 74.5 mm for women and 53 mm and 77 mm for men. There are two main methods of PD measurement: single PD and dual PD.

Single PD is the pupil-to-pupil measurement between each eye. Double PD is the measurement from the nasal bridge to each eye.

Double PD is considered the most accurate. PD is especially important when fitting glasses with progressive lenses, which require precise alignment of the lens with the pupil to ensure comfortable vision at all distances.

Can you measure it yourself?

You can measure the pupillary distance yourself. For this, you need a millimeter ruler and a mirror. If there is no ruler, you can print a particular scale for measurement, but you first ensure that the printer doesn’t distort the scale.

The room should be well lit. Stand in front of the mirror at a distance of 20 cm. Locate the ruler above the eyeballs, parallel to the eyebrow line. Held the head straight to obtain more accurate measurements.

First, you should close one eye and place zero on the ruler opposite the left center of the pupil. The more precisely the center is determined, the better the result is.

Next, you should open the second eye and find the division on the ruler, which will be accurate in the middle of the pupil. At this time, you can’t move your head or the ruler. Direct eyes to the mirror for the measurement to be correct. The obtained data in millimeters is the pupillary distance. You should make measurements 3 or 4 times.

Another person’s help

You can measure with the help of another person. Following simple rules, you can understand how to measure the pupillary distance with an assistant. For this, it’s necessary to face each other. The distance between people should be 20 cm. A larger or smaller interval will distort the result.

The measured person should look over the assistant’s head. The head should be lower than the eyes of the subject. Look at an object that is at a distance of 3-6 meters from a person. For the accuracy of the measurement, you can’t move, move your head and turn your eyes. You should fix the view. You should position the ruler above the eyes parallel to the eyebrow line. Zero should be set in the center of the pupil of one eye and determine at what distance the other pupil will be.

Examination by an ophthalmologist

Measuring the pupillary distance at an ophthalmologist will show a more accurate result. Choosing glasses, the doctor holds a special ruler at different intervals. It depends on the degree of nearsightedness or farsightedness.


Ophthalmologists use a pupillometer to determine the diameter of the pupils and the distance between them. The modern device is rich in settings and guarantees the high accuracy of the result. Compared to other methods, the pupillometer has the following advantages:

• quick and accurate result;

• accuracy is not affected by uncontrolled movements of the pupils and the degree of illumination of the office;

• the result is displayed on the device display.

The device can measure from the nasal bridge to each pupil. It shows data for asymmetry, farsightedness, and myopia. The ability to measure the pupillary distance helps to adjust it when using optical devices. Some of them require settings to see the images.

Transition lenses and prescription sunglasses: main advantages, disadvantages, and differences

Transition lenses 

Glasses with transition lenses change their color, adjusting to the lighting conditions: in bright light, they darken, and in a dark room they remain transparent. This effect is ensured by a special coating with photochromic properties. It is they react to UV, activating their protective properties and reducing light transmission. The degree of darkening of such lenses in some models reaches 85%.

Glasses with transition lenses combine the benefits of corrective and sun protection optics. This is very convenient for people with low vision who can’t protect their eyes on a sunny day because they have to wear corrective glasses. Also, transition lenses are recommended for people who suffer from eye diseases. 


Main advantages 

• “Two in one” – glasses with transition lenses make life easier for people who need vision correction. You no longer need to squint from the sun or wear sunglasses to the detriment of good visibility. Transition lenses provide both the necessary correction and protection from bright sunlight.

• Help for people with eye diseases and photosensitivity – transition lenses provide relief for people who suffer from diseases that cause increased sensitivity to light. Glasses that quickly adapt to changes in lighting effectively protect the eyes from pain and discomfort. 

• Special lenses for drivers – glasses with such lenses react not only to UV radiation but also to visible light, due to which the lenses darken even when not directly exposed to the sun.

Main disadvantages

• The degree and speed of darkening depend on the ambient temperature. The reaction is faster in warm weather and slower in cold weather. At temperatures above 30 °C, the lenses don’t darken completely, but by 90-95%, which can cause discomfort to residents of the southern regions. In the cold, on the contrary, the glasses give out their maximum, which is not always convenient when it is partly cloudy or walking through the forest with constantly changing lighting.

• Limited range of colors – unlike sun-protection and tinted optics, transition lenses have a small palette of possible dimming colors. 

• If you leave your glasses in an enclosed space in hot weather in direct sunlight in a car or on a window, the protective coating may be damaged.

Prescription sunglasses  

Most people who wear glasses often experience discomfort with the onset of sunny weather. This problem is especially true for people who drive a car or spend a lot of time outdoors. An excellent summer solution for people with low vision will be sunglasses with prescription lenses. These are glasses two in one: glasses for vision and sunglasses at the same time. In addition to providing a comfortable stay in the blinding sun, such glasses protect against harmful UV radiation and have several other advantages.

Why do we need prescription sunglasses if there are transition ones?

It would seem, that why would someone need a half solution if there is a complex one? But there are a few subtleties that you need to be aware of to make an informed decision.

• As mentioned above, transition lenses have residual tint. Not everyone likes it. Many people need the most transparent lenses.

• Not everyone is comfortable waiting for the lenses to darken / clear.

• Well, and most importantly, prescription sunglasses have much more options for colors, shades, tints, color combinations, and so on.

How to take care of sunglasses

Useful tips to take care of your sunglasses


The frames of sunglasses can wear and deform over time, and the lenses can get dirty and scratched. All this leads to the fact that wearing them becomes not as comfortable as before. And in some cases, such breakdowns can even ruin your eyesight. To prevent this from happening, you need to take care of your glasses and do it right.

Sunglasses, like any other accessory, require careful care and proper use, and then they will be able to please their owner much longer.

Dust, dirt, grease, fingerprints, falls – all these factors affect the condition of any glasses.

For the glasses to serve as long as possible, you need to follow a few simple rules that are available to each of us.


How to take care of your sunglasses

• Handle glasses with care. That is, carefully put on and take off the accessory, making sure that you don’t stretch or bend the temples and nose pads.

• Put on and take off glasses with both hands, holding them by the temples.

• When taking off your glasses, put them in a hard sunglasses case. It is the best way to prevent damage, scuffs, and cracks.

• Avoid putting glasses with lenses down on hard surfaces (this applies to any glasses, not just sunglasses) – scratches may occur.

• Sunglasses must not be exposed to shock or vibration.

• Lenses, as well as frames, are not intended for contact with gasoline, chemicals, and other aggressive environments.

• Don’t swim with sunglasses in salty sea water, as it can adversely affect the color and its uniformity.

• Sunglasses keep the operational characteristics in the range of temperatures: from – 50°C to + 45°C.


How to clean sunglasses

For daily care, you will need a special microfiber cloth. It perfectly removes fingerprints and small dirt. Due to its structure, it can’t scratch your lenses.

If there is serious contamination on the lenses or frames, it is necessary to use special sprays.

We also recommend purchasing wipes with a special cleansing impregnation. It has an antibacterial effect and perfectly copes with any pollution.

Now that you know how to take care of your lenses and frames, you can prolong the life of your sunglasses.

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