Glasses with strength: How to choose the right glasses for your eyesight and your everyday life

by Jesper Krog Jensen June 17, 2026

Released: June 17, 2026

Glasses with strength: How to choose the right glasses for your eyesight and your everyday life

Author Jesper Krog Jensen

CEO & Owner of PREGO with +25 years of experience in the eyewear industry.

That's why glasses with strength are about more than just vision

Glasses with strength must first of all help you see clearly, but they must also suit your everyday life, your face and the way you use your eyes.

The right strength can make reading, screen use, work and everyday tasks more comfortable, while a good fit ensures that the glasses feel natural to wear throughout the day.

Glasses with strength for vision and everyday life

Prescription glasses are for many an important part of everyday life. They help you see clearly, read clearly, work comfortably and move confidently throughout the day. But when you have to choose new prescription glasses, it's not just about the number on the lens. It is also about fit, comfort, frame type, use and personal style.

The right glasses must suit your vision, but also the way you use them. Some need glasses all day, others use them primarily for reading, screen or distance. That is why it is important to choose glasses that match both your vision needs and your everyday life.

At PREGO you will find glasses and reading glasses in different strengths, shapes and expressions, so you can choose a model that both works well and feels right to use.

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The best prescription glasses are those that suit both your vision and your everyday life. The strength must be correct, but the glasses must also fit well and feel comfortable if you are to enjoy them every day.

- Jesper Krog Jensen

What are prescription glasses?

Prescription glasses are glasses where the lenses are made to correct your vision. This may be because you have difficulty seeing far away, close up or find that your eyes tire quickly during certain tasks.

The power in glasses is typically indicated in plus or minus. Plus strength is often used when help is needed to see up close, while minus strength is typically used for myopia, where it can be difficult to see clearly at a distance.

There are also glasses with cylinder strength, which are used for astigmatism. Here, the glasses correct so that the eye does not refract the light perfectly evenly.

When do you need prescription glasses?

You may need prescription glasses if you find that your vision no longer feels sharp or relaxed in everyday life. It can come on gradually and be easy to overlook at first.

Typical signs may be that you squint, get a headache, get tired in your eyes, find it difficult to read small texts or find that screen work requires more energy than before.

Some discover it when they drive a car and find it difficult to read signs from a distance. Others only notice it when the mobile phone, computer or a book becomes more difficult to focus on.

Different types of prescription glasses

There are several types of prescription glasses, and the right choice depends on how you will use them.

Single strength glasses have one strength throughout the lens. They are often used either for distance, reading or screen use.

Reading glasses with strength are used to see clearly up close, for example when reading, using a mobile or working with small details.

Monitor glasses or computer glasses may be relevant if you spend many hours in front of a computer screen. Here, the strength is often adapted to a slightly longer distance than normal reading.

Sunglasses with strength can be a good solution if you need sharp vision outdoors and at the same time want protection from sunlight.

Glasses with strength for reading and screen

Many people associate prescription glasses with ordinary everyday glasses, but prescription glasses can also be particularly relevant for reading and screen use.

When you read a book, use the mobile phone or work at the computer, the eyes work at a shorter distance. If the strength is not suitable for the task, the eyes may become strained and this may cause fatigue, discomfort or headaches.

Therefore, it can be advantageous to have glasses that are adapted to what you use them for most. Prescription reading glasses are often good for short distances, while screen glasses may be better for computer work.

Glasses with strength and personal style

Prescription glasses are not just a practical aid. They are also a visible part of your style.

Some choose discreet frames that go with everything. Others choose more distinctive glasses that give personality and character. Color, shape and size can make a big difference to how the glasses fit your face.

If you have a round face, angular frames can give more definition. If you have a square face, round or softer shapes can create balance. If you have an oval face, you can often wear many different frame types.

The most important thing is that the glasses both feel comfortable and suit the way you want to look.

That's why fit matters a lot

Even the right strength doesn't feel good if the glasses don't fit well. Fit is therefore an important part of the choice.

The glasses must rest comfortably on the nose, sit stably and not pinch the temples. They must not slide down all the time, and they must feel natural to wear.

If you wear glasses many hours a day, comfort is extra important. Here, light frames, good nose support, spring hinges and a suitable size can make a big difference.

Glasses with strength from PREGO

At PREGO, we focus on glasses that combine function, comfort and style. We know that glasses should not only correct vision. They must also suit the customer's everyday life, face and personal expression.

PREGO is a member of the Opticians' Association, and we work with glasses based on many years of experience with vision, fit, frames and the customers' needs. This gives you as a customer a safe starting point when you have to choose glasses with strength.

Regardless of whether you are looking for reading glasses with strength, glasses for screen use or stylish glasses for everyday use, you can find models at PREGO that have been created with a focus on both function and design.

How to choose the right prescription glasses

When choosing prescription glasses, you should first think about what the glasses will primarily be used for.

Are they to be used all day? For reading? For computer work? For driving? For work? Or as an extra pair for certain situations?

Then you should choose a model that fits well, suits your face and matches your style. Prescription glasses must be easy to use in everyday life, and you must want to put them on.

If you are in doubt about the strength, you should have your eyesight examined so that you choose the right solution.

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Prescription glasses FAQ

What does prescription glasses mean?

Prescription glasses mean that the glasses correct your vision. The strength helps the eyes to see more clearly either at a distance, up close or during certain tasks such as reading and screen use.

How do I know if I need prescription glasses?

You may need prescription glasses if you experience blurred vision, headaches, tired eyes, trouble reading small text, or difficulty seeing clearly at a distance.

What is the difference between plus strength and minus strength?

Plus power is often used to help see up close, while minus power is typically used for myopia, where you have difficulty seeing clearly at a distance.

What are prescription reading glasses?

Prescription reading glasses are glasses that help you see clearly at short distances. They are typically used for reading, mobile, tablet, needlework and other tasks close by.

Can I use prescription glasses for computers?

Yes, but it depends on the power and the distance to the screen. Computer work often takes place at a longer distance than regular reading, so some need a special strength for screen use.

Are screen glasses and prescription glasses the same?

Screen glasses may well be glasses with strength, but they are typically adapted to the screen distance. Regular prescription glasses can be made for distance, reading or other vision needs.

Can I buy prescription sunglasses?

Yes, prescription sunglasses are a good solution if you need sharp vision outdoors and at the same time want to protect your eyes from sunlight.

What does cylinder in prescription glasses mean?

Cylinder is used for structural defects. This means that the glass corrects for the eye not refracting the light perfectly evenly. It is a common part of many eyeglass prescriptions.

Can glasses with the wrong strength cause headaches?

Yes, glasses with the wrong strength can cause headaches, tired eyes, dizziness or discomfort. If your glasses don't feel right, you should have the power checked.

How often should I have my strength checked?

It depends on your vision and your needs, but many people have their vision checked at regular intervals, especially if they experience changes, discomfort or that the glasses are no longer working optimally.

Can I use the same glasses for reading and distance?

It depends on your view. Some need different glasses for different distances, while others can use a solution that covers several needs. An optician can help assess it.

What are single prescription glasses?

Single strength glasses have one strength throughout the lens. They are typically used either for distance, reading or screen use.

What is the difference between reading glasses and regular prescription glasses?

Reading glasses are intended for short distance, while regular prescription glasses can be made for distance, near work or another specific vision need.

How do I choose frames for prescription glasses?

Choose a frame that fits your face, fits comfortably and matches your style. The shape of the frame can also affect how the glasses fit you.

Why is fit important in prescription glasses?

Fit is important because the glasses must sit stably and comfortably. If they slide, squeeze or sit crooked, they can feel bothersome and affect the experience of vision.

Can I have multiple pairs of prescription glasses?

Yes, many people have several pairs of glasses for different needs, for example a pair for work, a pair for reading, a pair for screen use and a pair of prescription sunglasses.

Are expensive prescription glasses always better?

Not necessarily. The most important thing is that the strength is suitable, that the glasses are suitable for your needs and that the frame fits well. A good pair of glasses is about function, comfort and fit.

Can children use prescription glasses?

Yes, children may well need prescription glasses. If vision problems are suspected in a child, the vision should be examined by a professional.

What should I do if my prescription glasses don't feel right?

If your glasses give you headaches, dizziness, blurred vision or feel uncomfortable, you should have them checked. This can be due to incorrect strength, fit or getting used to it.

Why choose prescription glasses from PREGO?

PREGO offers glasses with a focus on comfort, function and style. PREGO is a member of the Association of Opticians and has many years of experience in helping customers find glasses that suit both vision, face and everyday life.