Progressive & computer lenses
Progressive lenses and computer glasses in Thane.
A general-purpose progressive is a compromise across every distance. If most of your day is a monitor, a document or a workshop bench, there is a lens designed for that — and it is not the same lens. Bifocals, progressives, office lenses and computer glasses, with blue-cut (blue cut) and anti-glare coatings, fitted at both our Thane optical shop outlets.
Zone maps
The same prescription, three different lenses.
These maps show roughly how much of the lens is given to each viewing distance. The darker wedges at the bottom of the first two are the soft zones you learn to look around.
Standard progressive
Priority on distance, a narrow corridor through intermediate, near at the bottom. The right choice for general everyday wear — driving, walking about, reading a menu.
Office / room lens
Inverts the priority: a wide, stable intermediate band where your monitor sits, near at the bottom, and only limited distance. For desk work. Not for driving.
Digital single vision
Full distance correction with a small near-support boost in the lower part. Aimed at people under about 40 who don't need a reading addition yet but feel screen fatigue.
Why screen work is a different problem
A monitor sits at roughly 50 to 70 cm — the intermediate range. On a general-purpose progressive that range occupies a narrow corridor near the middle of the lens, because the design is spending most of its surface on distance and near. You find it, but only by holding your head at one particular angle. Eight hours of that becomes neck and shoulder ache rather than eye ache, which is why people rarely blame their glasses.
An office lens does the opposite. It gives up distance vision — you cannot drive in these — and spends the lens on a wide, forgiving intermediate zone. People who switch usually describe the difference as being able to sit normally again.
Digital eye strain isn't only about the lens
Prolonged screen use is associated with a cluster of symptoms — tired eyes, headache, blurred vision, dry or irritated eyes — commonly grouped as digital eye strain, and it is highly prevalent among people who work at screens.1 Some of it is optical and a lens fixes it. Some of it is a reduced blink rate drying the tear film, which is a dry eye problem, not a lens problem.
If the eyes feel gritty and sore rather than simply tired, the tear film is usually involved — that belongs on the dry eye side rather than in a new prescription.
Getting the fitting right
Progressives are unforgiving of measurement error in a way single vision lenses are not. The fitting height is taken with the chosen frame on your face, adjusted, sitting the way you normally sit. Two millimetres of error moves the corridor relative to your pupil and turns a good lens into a frustrating one. This is the single most common reason people say "I couldn't get on with progressives".
Reference
- Sheppard AL, Wolffsohn JS. Digital eye strain: prevalence, measurement and amelioration. BMJ Open Ophthalmology. 2018;3:e000146.
Which lens fits your day?
- Mostly out and about — standard progressive
- 6+ hours at a desk — office lens for work, progressive for the rest
- Under 40, screen-tired — digital single vision
- Night driving trouble — anti-glare designed for headlight glare
Progressive lens questions
The ones we hear most.
How long does it take to get used to progressives?
Most people settle within one to two weeks. The usual advice — move your head rather than your eyes, and wear them consistently rather than switching back and forth — genuinely does shorten the adaptation. If you're still struggling after three weeks, come back; something in the fitting is probably wrong and it's fixable.
Why do my current progressives feel narrow?
Usually one of three things: the fitting height is off, the frame is too shallow for the design, or the lens is a basic progressive being asked to do a job that needs a wider corridor. All three are correctable.
Do I need a separate pair for the computer?
If you spend more than about four hours a day at a screen, almost certainly yes. A general-purpose progressive gives you a narrow intermediate band at exactly the distance your monitor sits, which is why people end up tilting their chin up all afternoon. An office lens inverts the priority.
Do blue-light filters work?
They filter part of the short-wavelength band, and many heavy screen users say they're more comfortable. The published evidence for a measurable effect on eye strain is mixed, and we'd rather tell you that than oversell it. Screen ergonomics, break frequency and the tear film usually matter more.
Can I get progressives in a small frame?
Sometimes, but it costs you corridor length. Below about 28 mm of lens depth the near zone gets compressed and the design starts to fight you. We'll tell you before you buy the frame, not after.
Where our customers come fromOur Ghodbunder Road outlet serves Ovala, Kasarvadavali, Waghbil, Owale, Brahmand, Anand Nagar, Manpada, Hiranandani Estate, Kolshet and the rest of Ghodbunder Road. Our Bhaskar Colony outlet serves Naupada, Teen Hath Naka, Panchpakhadi, Charai, Chendani, Vartak Nagar, Kopri and central Thane West.
Tell us how you spend your day.
That, more than the prescription, is what decides which lens you should be wearing.