How to protect your eyes from the screen

Our eyes are sensitive organs that react almost instantly to any stimulus. The radiation emitted from a computer monitor is no exception. But modern computer equipment manufacturers have learned to smooth out this effect. The screens we look at today don’t harm the organs of vision.

The main problem is that we practically stop blinking when watching a series, reading an e-book, playing a game, or working on a monitor. As a result, the tear eye film dries up even though it regenerates again over time. Its layer becomes significantly thinner, and the influence of the electromagnetic field on the tissues of the organ of vision increases.

What are the rules for eye care, what you should consider, and what you should avoid – read on.


The screen shouldn’t be the only source of light in the room. While working at the computer, turn on a lamp or position yourself near a natural light source. Don’t place the monitor in front of a window or lamp to avoid glare on the screen. The difference between the brightness of the space and the monitor contributes to fatigue, discomfort, and eye strain.

When working with documents at night, direct the lamp light so that it doesn’t fall directly into your eyes. The ideal lamp position is when the work surface is well-lit equally.

Monitor position

The monitor should be mounted at arm’s length, with the top of the screen just below or at eye level. It’s significant to adjust the contrast and brightness of the monitor to be comfortable for the eyes. Clean the monitor as it gets dirty. Stains and dust create glare that disrupts the image clarity, which puts extra strain on the eyes.


While working at a computer, the muscles of the eyes are in constant tension and don’t receive a healthy load. That is why taking breaks for exercise and rest is important.

There is a simple but pleasant way to relax the eyes. Rub your palms together until you feel the warmth between them. Place your elbows on the table and close your eyes. Place your head on your hands so that your palms cover your eyes. Breathe evenly and deeply, remaining in this position for several minutes. Relax and think about something good.


Our eyes suffer from a lack of moisture during prolonged exposure to enclosed spaces, especially when working at a computer. The correct microclimate helps the eyes to bear the load easier. Temperature of 18–22 ° C and 40–60% humidity are comfortable conditions for the body. You can control it with a conditioner and humidifier. Don’t forget to ventilate the room regularly.


Blink more often. When we look at the screen and concentrate on receiving information, we blink much less than usual, which means we don’t moisten our eyes.


The 20-20-20 Rule is an effective and simple exercise that you can do without getting up from your desk. Every 20 minutes, stare at an object 20 feet away from you for 20 seconds. This exercise helps restore blood circulation and tone the muscles.

If you want to maintain eye health and visual acuity regularly, you should do exercises for the eyes. It takes only 3-5 minutes, but it strengthens the muscles of the eyes, improves blood circulation, and relieves fatigue. Various exercises are available and described on the Internet, so choose the warm-up system for the eyes that suits you best and do it several times a day. Remember that regularity is important, as in classes in the gym.

Moisturizing drops

At the end of a busy day at work, dryness and burning of the eyes may appear. Instillation of moisturizing drops helps to get rid of discomfort.


The constant presence at the computer can lead to significant pathologies (myopia, cataracts, retinal dystrophy). The best way to make working at the computer safe and comfortable for the eyes is to use the type of correction that the ophthalmologist recommended based on the diagnostic results. Properly fitted glasses should have clear lenses and an anti-reflective coating. It helps to increase the contrast and clarity of the image, reducing eye strain.

Special glasses for working at a computer also help reduce eye strain with special tinted lenses or thanks to their reflective coating.

Eyesight check

If you use optical aids to improve your visual acuity, you should have regular check-ups with an ophthalmologist. Incorrectly selected optics or eye strain if you refuse it while working at a computer can damage the health of your eyes.

Follow these simple tips, and then maintaining a good vision will be much easier.

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.

How to understand your eyeglass prescription?

If you looked at your recipe, you must have wondered what these numbers and symbols mean. Some of the recipes may be for long-distance viewing, the others for reading, office, or progressive lenses.

Date of prescription

The duration of the prescription is not strictly defined. Its relevance depends on many factors, such as your age, the degree of the underlying visual impairment, the presence of concomitant disorders, the course and nature of common diseases, and the use of certain medicines. Doctors recommend checking the eyesight and the relevance of the prescription at least once a year. If you have a prescription but don’t wear glasses according to it for more than 3 months, then before ordering glasses, it’s advisable to clarify your vision parameters again.

Basic parameters and their interpretation

1. OD and OS – right and left eye

Each recipe starts with this parameter. It is the designation of the right and left eyes in Latin, where O means oculus, that is, “eye”, D – dexter (“right”), and S – sinister (“left”). Thus it is:

• OD – right eye;

• OS – left eye.

Sometimes, instead of Latin designations, English ones are used – R (that is, right) for the right eye and L (left) for the left.

2. SPH – sphere

The SPH parameter indicates the optical power. They measure these indicators in diopters.

Here is the type of lens. The doctor prescribes scattering lenses, that is, minus lenses, with myopia. A “-” sign precedes the number in this case. You need converging lenses for farsightedness. They are marked with a “+” sign in the prescription.

3. CYL – cylinder

The doctor writes CYL parameters in cases where the patient has astigmatism. Then he is prescribed special cylindrical lenses, and the numbers in the prescription indicate the optical power of the cylinder. If there is a minus in front of the numbers, glasses correct myopic astigmatism. If plus – for hypermetropic astigmatism. It is also possible to correct mixed astigmatism. Then the prescription will contain both a minus and a plus.

4. AX-axis

AX, that is, Axis, in Latin means “axis”. This parameter indicates the position of the cylinder axis. They mark it in degrees – from 0 to 180. It is filled in only if the doctor recommends glasses with astigmatic lenses to the patient.

5. Pr – prism

The doctor prescribes prismatic glasses in cases where the patient has a binocular vision violation. They need lenses with prisms for strabismus most often.

Specialists indicate optical power in diopters.

6. PD – pupillary distance

It denotes the distance between the pupils’ centers. They measure this parameter in millimeters. When ordering lenses with a complex design, PD is prescribed separately for each eye.

7. ADD – addition

The added factor is considered when creating glasses with several optical zones – for work at close, medium, and long distances.

Addition indicates the diopter difference between these zones. For example, diopters are indicated for correcting vision at long distances. To find out what diopters are needed for correction at close distances, add the additional factor.

Now you know how to decipher a prescription for glasses or lenses. However, remember that doctors recommend confirming or updating the recipe periodically. Vision may change, especially if your work involves prolonged computer use or small details. Age-related changes can also affect eyesight after 40 years. Doctors recommend undergoing an annual check-up with an ophthalmologist.

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.