Where a Leica lens comes from
Leica is a Wetzlar name before it is anything else. Carl Kellner founded the optical institute in that small Hessian town in 1849. Ernst Leitz took it over in 1869 and put his own name on it. The workshop then spent the rest of the century grinding microscope objectives. In 1914 Oskar Barnack, working there, built the camera that later carried the name Ur-Leica. He used 35 mm cine film in a pocketable body. Leica showed the production camera, the Leica I, in 1925, and the way people took photographs changed with it.
That is a long apprenticeship in one particular problem. The problem: making a small piece of glass behave predictably at the edges as well as the centre. You can find more on the company at Leica Camera.
For a reader searching for Leica progressive lenses from Germany, that is the substance behind the phrase. The interest is not the badge on the lens cloth — nobody sees it. It is the design and manufacturing culture behind the surface you look through all day.
What a progressive lens actually has to do
A single-vision lens has one power across its whole surface. A progressive — a varifocal — has to carry several. The maker grinds the upper part for distance and the lower part for reading. Between them runs a corridor in which the power increases smoothly, with no line and no visible step. The eye travels down that corridor as the task moves closer.
A lens surface cannot change power in one direction without consequences in the other. So the designer has to put the unavoidable aberration somewhere. On a progressive, the design pushes it out into the two lower outer zones, left and right of the reading area. Every progressive in the world makes that trade. Designs differ in how wide the maker keeps the corridor and how quickly the power rises along it. They also differ in how gently the maker blends the soft zones, so the change is not abrupt as the head turns.
None of this is new — the principle has been in commercial production for decades. If you like knowing where a design came from, the history of progressive lenses is worth reading. What has changed is the computing power behind the surface and the precision of the machines that cut it.
What Leica brings to a spectacle lens
You can find more on Leica’s spectacle lenses at Leica Eyecare. For people who already know the name, the appeal is continuity of approach. A photographer expects a lens barrel to behave well off-axis. Leica gives that same attention to a surface you wear close to the eye and use for every waking hour.
Leica is one of the lens makers we recommend. The design itself is a real choice. A house with a serious optical pedigree is a reasonable place to start.
Perhaps you want the general ground covered first. In that case, there is a complete guide to what matters in a progressive lens.
Stock designs and individualised designs
Progressive lenses come in tiers. The difference between them is mostly how much of your own situation the calculation takes into account.
A stock design starts from average values. The lab assumes an average distance from lens to eye, an average tilt of the frame, an average curve. It matches your prescription but not your geometry. An individualised design takes measured values from the frame as it sits on your face. It then recalculates the surface around them, so the corridor lands where your eye will actually travel.
Whether that is worth it depends on the prescription and on the frame. A strong prescription or a marked astigmatism pushes towards the individualised calculation. So does a deeply curved frame, or an unusually high or low frame position. Those are exactly the cases where the average assumption is furthest from the truth. A modest prescription in a flat, conventional frame is less demanding of it.
We would rather talk this through with the frame on your face than sell a tier from a list. The frame changes the answer. That is why we discuss the lens after you have chosen the frame, not before.
The measurements a progressive is built around
We order a progressive on more numbers than a prescription. We take the ones that matter most with the chosen frame worn and adjusted:
- Monocular pupillary distances. Measured separately for each eye from the centre of the bridge, because faces are rarely symmetrical.
- Fitting heights. Where the pupil sits within the lens shape. This determines where the corridor begins and how much reading area remains below it.
- Vertex distance. How far the back surface of the lens sits from the eye.
- Pantoscopic tilt. How far the frame leans, top to bottom, when you wear it.
- Face form or wrap. How far the fronts curve around the face.
Change the frame and all five change with it. Change the adjustment — a nose pad moved, a temple reset — and the fitting height moves too. At every fitting we begin with the essentials: comfort, balance and eye position. We also check how the frame sits across the bridge and temples. Those are the same things the lens calculation depends on.
One further point worth naming: many designers draw frames around a higher bridge profile. We pay particular attention to fit for Asian facial features. The frame then sits securely, without slipping or resting on the cheeks — a frame that slides down the nose moves the reading area with it.
Choosing a frame that will carry the lens
Design comes first here. We carry luxury eyewear and unique designs: small independent houses, distinctive materials and shapes. They are here because they are beautiful and made well. We select frames in small, considered quantities, each one for how it fits and feels on a person. Not for how it looks on a display board. The right frame for a progressive is, first, a frame you want to wear.
After that, a few practicalities genuinely matter:
Vertical depth
The corridor and the reading area need room below the pupil. Very shallow shapes compress both. Several of the houses we carry draw shapes with enough depth to take a progressive without argument. Lindberg, Lunor, Masunaga, Anne et Valentin, Lafont are among them. There is usually a version of a shape you like that is a millimetre or two deeper.
Adjustability
We can set rimless and titanium constructions precisely and reset them later. Adjustable pads let us tune the height on the face. Frames with fixed bridges rely on the shape of the bridge being right for your nose in the first place.
Stability
Weight and temple grip decide whether the frame stays where we measured it. A light front in titanium or a well-balanced acetate holds its position; a heavy front on a shallow bridge drifts.
We also make bespoke hand-made spectacles in-house — we are the only optical boutique in Singapore doing this. We cut the acetate ourselves, offer our own colour range, and make every frame by hand. That means we can draw the shape and depth around the lens, rather than the other way around.
Material, index and coatings
The lens design is one decision; the material is another. Higher-index materials bend light more sharply, so a given prescription fits into a thinner lens. That helps in a strong prescription. It helps again in a rimless frame where the lens edge is on show. Lower-index materials are thicker for the same power but have their own optical character. In a modest prescription the thickness penalty is small.
Anti-reflection coatings reduce the light reflected off the lens surfaces. That is why a coated lens photographs darker. In a car at night, you also see less of your own eyelashes mirrored back at you. Hard coatings resist scratching. Hydrophobic and oleophobic top layers make the surface easier to clean. That matters more in Singapore humidity than it does anywhere temperate.
Tints and photochromics are a separate conversation again. A progressive prescription sunglass is a legitimate second pair rather than a compromise. This holds particularly in a wrapped frame, where we have to recalculate the lens geometry anyway.
Living with a new progressive
The way you use a progressive follows directly from how we build it. Reading power sits low, so you lower your eyes rather than your chin. The corridor is narrow. You point your nose at what you are reading, rather than looking across at it. The soft zones sit at the bottom outer corners. Stairs are easier if you use your head to look at them, not the corner of your eye.
First days in a new design feel different from the last pair. A different maker places the corridor differently. You built your habits around your old lenses, and around those specific coordinates. That settling is one of the things you usually weigh against the advantages of progressive lenses. It is worth knowing in advance rather than discovering on day two.
If something still reads wrong after a reasonable settling period, check the frame first, not the lens. A frame that has slipped a millimetre down the bridge moves every zone in the lens with it. An adjustment often resolves what looks like a design problem.
Putting new lenses into a frame you already own
A frame you like and are used to can take new lenses. We offer lens replacement, and for a progressive the same measuring applies. We take the heights and distances with that frame on your face. The numbers belong to the pair, not to the prescription alone.
Older frames need a sober look before the order goes in. Acetate shrinks and stiffens with age. Rimless mounts have drill holes matching the old lens. Metal rims that you have bent back and forth may not hold a new edge securely. We also offer repair and spectacles restoration and repaint. So we can usually put a frame worth keeping back into service properly, rather than patch it.
Why a progressive is fitted in person
A website can take your prescription. It cannot take your fitting heights. Those do not exist until a particular frame sits on a particular face, adjusted. Nor can it tell you that the shape you liked in a photograph sits a fraction too high on your cheek. It cannot tell you a deeper version of the same shape gives the reading area the room it needs.
That is the argument, plainly put. The best way to choose a frame is to try it in person. Photographs are useful for inspiration, but you can only really judge fit, proportion and comfort when you put a frame on. On a progressive, those same things decide what you see through it. See also the benefits of wearing progressive lenses.
We have been doing this in Holland Village for nearly twenty years, as an independent, fitting-led boutique. We are also an authorised dealer for Lindberg. Design, proportion and how a frame suits a face come first; fit is what makes a good-looking frame wearable.
Looking after the lenses
Coated lenses reward a little discipline. Rinse off dust before wiping, so you do not drag grit across the surface. Use a clean microfibre cloth rather than a shirt tail. The weave of a shirt holds whatever it has picked up. Avoid household cleaners containing ammonia, which attack coatings over time.
Heat is the other enemy, and in this climate it is the common one. A car dashboard or a sealed bag left in the sun will reach temperatures that craze a coating. Keep the frame in its case when it is not on your face. Leave it face up if you ever put it down bare.
Bring the frame back for adjustment when it starts to sit low or lean. On a progressive this is not cosmetic. The lens assumes a calculated position. Keeping it in that position is the cheapest thing you can do for the way it reads.
