Over time, reading up close, checking your phone or making out small print sometimes becomes harder. This natural phenomenon is called presbyopia. It generally appears around the age of 40 to 45 and develops gradually with age.
To regain comfortable vision at every distance, varifocal lenses are today one of the most complete solutions. They let you see into the distance, in intermediate vision and up close with a single pair of glasses, with no visible line on the lens.
But not all varifocal lenses are equal. Their comfort depends on several elements: the correction, the quality of the lens, the choice of frame, the measurements taken by the optician, the wearer's lifestyle and the precision of the centring.
At OLIVIA BALM, we regard varifocal lenses as bespoke equipment. The aim is not only to correct vision, but to offer a smooth, natural visual experience suited to your daily life.
What is a varifocal lens?
A varifocal lens is an ophthalmic lens designed to correct several viewing distances within a single lens.
It generally contains three main zones:
- distance vision, located in the upper part of the lens, useful for driving, walking, looking into the distance or seeing the person you're talking to;
- intermediate vision, located in the centre of the lens, useful for the computer, the dashboard, office activities or cooking;
- near vision, located in the lower part of the lens, useful for reading, writing, checking your phone or looking at something up close.
Unlike the old bifocal lenses, varifocal lenses have no visible separation. The power changes gradually from top to bottom, allowing a more natural transition between the different distances.
Who are varifocal lenses for?
Varifocal lenses are mainly for people affected by presbyopia.
You may need them if you notice that:
- you hold your phone or a book further away to read it better;
- you need more light to see up close;
- you feel visual fatigue at the end of the day;
- you alternate between several pairs of glasses;
- your near vision becomes blurred despite good distance vision;
- you find it hard to switch quickly from one distance to another.
They can be suited to different corrections: short-sightedness, long-sightedness, astigmatism and presbyopia. The aim is to bring together several visual needs in a single pair.
How does a varifocal lens work?
A varifocal lens relies on a gradual variation of optical power.
When you look straight ahead, you mainly use the distance-vision zone. When your gaze drops slightly, you reach intermediate vision. When you look down further, you use the near-vision zone.
This requires a little learning, especially with a first pair. The brain has to get used to using the right zones of the lens according to the distance being looked at.
This is why the quality of the lens, the taking of measurements and the fitting of the frame are essential.
Why are there several ranges of varifocal lenses?
Not all varifocal lenses offer the same level of comfort.
The differences come mainly from:
- the width of the fields of vision;
- the smoothness of the transition between distances;
- the reduction of lateral distortions;
- comfort in intermediate vision;
- personalisation according to the frame;
- accounting for posture and visual habits;
- the lens manufacturing technology.
An entry-level varifocal lens can be enough for certain simple uses. On the other hand, for everyday wear, screen work, regular driving or a high demand for comfort, a more personalised lens can make a real difference.
The main zones of a varifocal lens
Distance vision
The upper zone of the lens lets you see clearly into the distance. It is used for driving, walking, outdoor activities, interacting with other people or taking in a general view of an environment.
Good distance vision should be stable, sharp and comfortable, particularly when moving around.
Intermediate vision
The intermediate zone is one of the most important in modern life. It corresponds to the distances between distance vision and close reading.
It is used for:
- computer screens;
- conversations at the table;
- a car dashboard;
- cooking;
- DIY;
- professional activities.
Many wearers underestimate this zone, even though it strongly influences everyday comfort.
Near vision
The lower zone of the lens lets you read, write, check a phone or look at a nearby object.
To use it correctly, you generally need to drop your eyes slightly rather than your whole head. The optician supports the wearer through this learning.
Why can getting used to varifocal lenses take a few days?
When someone wears varifocal lenses for the first time, they discover a new way of using their glasses.
You have to learn to:
- turn your head more to look to the sides;
- drop your eyes to read;
- find the right zone according to the distance;
- avoid looking through the peripheral zones of the lens;
- give the brain time to take in this new perception.
Most wearers adapt gradually over a few days to a few weeks. A longer adaptation may be needed in the case of a strong correction, a major change of prescription or a first pair of varifocals.
The possible sensations at first
At first, it is possible to feel:
- an impression of blur at the sides;
- slight instability on stairs;
- discomfort during quick head movements;
- difficulty finding the right reading zone;
- a sense of a different field of vision.
These sensations don't necessarily mean the lenses are poorly suited. They can be part of the learning period. On the other hand, if the discomfort persists, a check in the shop is recommended.
How to get used to varifocal lenses properly?
To make adaptation easier, here are the most important tips.
Wear your glasses regularly
The more you wear your varifocal lenses, the faster your brain gets used to them. Switching too often with an old pair can slow down adaptation.
Point your nose in the direction you want to look
With varifocal lenses, it is best to accompany your gaze with a slight head movement, especially to the sides.
Drop your eyes to read
Near vision is in the lower part of the lens. To read, keep your head relatively straight and simply lower your gaze.
Be careful on stairs
At first, it is advisable to tilt your head down slightly to look at the steps through the right zone of the lens.
Come back to the shop if discomfort persists
A fitting of the frame, a check of the centring or an analysis of the prescription can sometimes be enough to clearly improve comfort.
The importance of measurements for varifocal lenses
Varifocal lenses require precise measurements.
Among the essential measurements are:
- the pupillary distance;
- the fitting height;
- the tilt of the frame;
- the lens-eye distance;
- the wrap of the frame;
- the wearer's natural posture;
- the real position of the frame on the face.
A difference of a few millimetres can change visual comfort. This is why the measurements must be taken with care.
At OLIVIA BALM, we pay particular attention to this stage, because it directly determines the quality of use of your varifocal lenses.
Is the choice of frame important with varifocal lenses?
Yes, the choice of frame is very important.
A frame suited to varifocal lenses must offer enough height to integrate the different vision zones correctly. It must also be stable, well fitted and consistent with the correction.
A frame that is too small, too low, too tilted or poorly positioned can reduce the comfort of varifocal lenses.
The ideal is to choose a frame that respects all of the following:
- your style;
- your morphology;
- your correction;
- your visual needs;
- the technical constraints of the lens.
A good choice of frame helps improve aesthetics, comfort and optical performance.
Which mistakes to avoid with varifocal lenses?
Choosing solely on price
A varifocal lens is technical equipment. Price should not be the only criterion. A more personalised lens can provide greater comfort, especially for everyday wear.
Neglecting intermediate vision
Intermediate vision is essential for screens, work, cooking and many modern activities. It must be taken into account when choosing the lens.
Keeping a poorly fitted frame
A frame that slips, leans or is poorly positioned can disrupt the use of the varifocal zones.
Switching glasses too often at first
Alternating between old glasses and new varifocals can slow down adaptation.
Waiting too long before coming back to the shop
If significant discomfort persists, you shouldn't wait several months. A quick check often makes it possible to identify the cause of the problem.
Varifocal lenses and the computer: what are the limits?
Varifocal lenses can be used in front of a computer, but it all depends on the time spent on a screen and the configuration of the workstation.
For occasional use, a well-chosen varifocal lens can be enough. On the other hand, for intensive computer use, a near-vision lens or an office lens can be more comfortable.
These specific lenses widen the intermediate and near vision zone, which can reduce head movements and improve comfort at work.
An optician can help you determine whether your varifocal lenses are enough or whether a second pair dedicated to screens would be more suitable.
What's the difference between varifocal lenses and near-vision lenses?
Varifocal lenses let you see at every distance: far, intermediate and near.
Near-vision lenses, also called office lenses or degressive lenses, are designed mainly for near and intermediate vision. They are very comfortable for reading, working at the computer or moving around an office environment, but they are generally not made for driving or seeing clearly into the distance.
The choice therefore depends on your lifestyle. For a full day with travel, driving and varied activities, varifocals are often more versatile. For prolonged screen work, a dedicated complementary pair can be worthwhile.
Which coatings to choose for varifocal lenses?
Coatings improve the comfort, durability and aesthetics of the lenses.
The anti-reflective coating
It reduces stray reflections, improves the lens's transparency and offers greater comfort, particularly when night driving, at the office or under artificial lighting.
The scratch-resistant coating
It reinforces the surface resistance of the lens against everyday micro-scratches.
The hydrophobic and oleophobic coating
It makes cleaning easier by limiting the adhesion of water, marks and dust.
The photochromic coating
It allows the lenses to tint automatically outdoors according to the intensity of the light. It is a practical solution for wearers who often move from indoors to outdoors.
Corrective sunglasses
For optimal comfort outdoors, a sun pair suited to your vision often remains the most effective solution, particularly for driving, holidays or very bright environments.
How to choose the right level of varifocal lenses?
The choice depends on several criteria:
- your correction;
- your addition;
- your age;
- whether or not it is your first experience with varifocals;
- the time you spend on a screen;
- your professional activities;
- how often you drive;
- your sensitivity to distortions;
- your demand for comfort;
- the frame chosen.
A very active wearer who works on a screen and drives regularly won't have the same needs as someone who uses their glasses mainly to read and get around.
The optician's role is therefore to translate your prescription and your lifestyle into a genuinely suitable solution.
Are varifocal lenses suited to everyone?
Varifocal lenses suit the great majority of presbyopic wearers. However, certain situations call for particular attention:
- a very strong correction;
- large differences between the two eyes;
- specific visual disorders;
- activities very demanding on intermediate vision;
- balance difficulties;
- a poor past experience with varifocals.
In these cases, personalised support is essential. It may be necessary to adapt the type of lens, the frame or to suggest a complementary pair.
When should you renew your varifocal lenses?
It is recommended to have your vision checked regularly, especially as presbyopia develops.
A renewal may be necessary if:
- reading becomes difficult again;
- you feel more visual fatigue;
- you need to hold text further away;
- intermediate vision becomes uncomfortable;
- your prescription has changed;
- your lenses are scratched or damaged;
- your lifestyle has changed.
Worn, scratched or unsuitable lenses can impair vision quality day to day.
Why choose your varifocal lenses at an optician?
Varifocal lenses call for real expertise.
The optician is involved at several stages:
- analysis of the prescription;
- understanding of the lifestyle;
- advice on the frame;
- choice of the type of lens;
- taking of precise measurements;
- fitting of the frame;
- support through adaptation;
- checking of comfort after delivery.
A high-performing varifocal lens doesn't depend solely on its brand or its technology. It also depends on the quality of the advice, the measurements and the fitting.
Our optician's advice
To choose your varifocal lenses well, don't start solely from your prescription. Start from your daily life.
Ask yourself the right questions:
- Do you work on a screen for a long time?
- Do you drive often?
- Do you read a lot?
- Have you ever worn varifocals?
- Are you sensitive to reflections or to light?
- Do you want a single pair or a complementary pair?
The best glasses are the ones that match your vision, but also your pace of life.
Conclusion: varifocal lenses, a complete solution when well chosen
Varifocal lenses make it possible to regain comfortable vision at every distance with a single pair of glasses. They are discreet, practical and perfectly suited to the needs of many presbyopic wearers.
But their comfort depends on a set of parameters: correction, lens quality, frame, measurements, adaptation and support.
At OLIVIA BALM, we help you choose varifocal lenses suited to your eyes, your style and your daily life. Our aim is simple: to offer you natural, elegant and comfortable vision, from morning until night.
Frequently asked questions
Is it hard to get used to varifocal lenses?
Adaptation varies from person to person. Some wearers get used to them very quickly, others need a few days or weeks. A good choice of lens, a suitable frame and precise measurements greatly ease this adaptation.
Can you drive with varifocal lenses?
Yes, varifocal lenses are designed to offer distance vision suited to driving. You do need to be well adapted to your lenses and to have an up-to-date correction.
Can you use varifocal lenses in front of a computer?
Yes, but for intensive use, a complementary near-vision pair can be more comfortable. It often offers a wider intermediate zone for screen work.
Why are my varifocal lenses blurred at the sides?
The lateral zones can show normal peripheral distortions. More personalised lenses generally make it possible to manage this sensation better.
Which frame to choose for varifocal lenses?
You need a frame that is tall enough, stable and well fitted. The choice should take into account your face, your style and the technical constraints linked to the lenses.
Do you need a second pair with varifocal lenses?
It depends on your uses. A second pair can be useful for screens, prolonged reading, the sun or certain specific activities.
Going further
Would you like to know which varifocal lenses are best suited to your correction and your lifestyle?
Book an appointment in the shop in Lyon →
Glasses for screens: visual comfort in front of the computer →