Single vision
One power across the whole lens. Corrects for one distance, either far or near. This is what most people under forty wear.
Best for: short sight, long sight, astigmatism.
Guide
A Plain Guide to Lenses
Most of what you pay for sits in the lens, and so does most of the confusion. This guide explains the choices in plain language, so you can judge any recommendation on its merits. Including ours.
- Written by
- The team at Panorama Vision, Navi Peth, Jalgaon
- Who it is for
- Anyone about to order glasses
- The short version
- Anti-reflective coating is worth it for almost everyone. Everything else depends on your prescription and your day.
Lens types
Four designs, four different jobs
The design determines where in the lens you can see clearly. Get this wrong and no amount of coating will rescue it.
Bifocal
Two powers with a visible line between them. Distance above, reading below. Simple, cheap and reliable, with no intermediate zone, so a computer screen falls awkwardly between the two.
Best for: people who want a defined reading segment and do not use screens much.
Progressive
Power changes gradually from distance at the top through intermediate to reading at the bottom, with no line. One pair covers everything, but the corridor is narrow and needs correct fitting heights.
Best for: anyone over forty who wants a single pair for everything.
Office lenses
Tuned for arm's length to across the room. Much wider comfortable zones than progressives at a desk, but useless for driving. A second pair, not a first.
Best for: long days at a computer, drafting tables, workshop benches.
Outdoor lenses
Built for bright light and distance. Tinted or polarised, with glare control for driving, water and open ground, and a curve that suits wrap frames.
Best for: long drives, travel, and anyone who spends the day outside.
If you are over forty and spend most of your working day at a screen, the honest answer is often progressives for general wear plus office lenses for the desk. Two pairs sounds like an upsell, which is exactly why we explain the reasoning rather than just recommending it.
Thickness
Lens index, and when it is worth paying for
Index is how strongly the material bends light. Higher index means a thinner, flatter lens for the same prescription. It is not a quality rating, and it is not always worth the money.
| Index | Roughly suits | Thickness | Worth it when |
|---|---|---|---|
| 1.50 CR-39 | Up to about ±2.00 | Standard | Mild prescriptions, large frames where weight is not an issue |
| 1.56 | Up to about ±3.00 | Slightly thinner | A modest step up in cost, and the sensible default for most prescriptions |
| 1.59 polycarbonate | Up to about ±4.00 | Thin, very tough | Children, sports, rimless mounts. Impact resistance is the point |
| 1.60 | About ±3.00 to ±5.00 | Noticeably thinner | Where edge thickness has started to show in your current pair |
| 1.67 | About ±5.00 to ±7.00 | Considerably thinner | Strong prescriptions, and smaller frames that expose lens edges |
| 1.74 | Above about ±7.00 | Thinnest available | High prescriptions where every millimetre and gram counts |
The honest version
If your prescription is mild, a high index lens will not look meaningfully different and you are paying for a number. If your prescription is strong, it changes how the glasses look on your face and how they feel by the end of the day, and it is money well spent.
Frame choice matters here too. A smaller frame edges a lens closer to its centre, so the edges stay thinner. A large frame with a strong prescription is where lenses start to look like bottle bases, whatever index you choose.
Where the ranges come from
The prescription ranges above are working guidance, not rules. Astigmatism, the size and shape of the frame, and where your pupils sit within it all shift the answer, which is why we work it out on the actual frame you have picked rather than quoting a chart.
Ask for an edge thickness estimate for your prescription in the frame you are considering. Any optician can give you one, and it answers the question faster than any explanation.
Coatings
What each coating actually does
| Coating | What it does |
|---|---|
| Anti-reflective | Cuts reflections off the lens surface, so more light reaches your eye and people can see your eyes |
| Hard coat | Resists scratching on the lens surface |
| Hydrophobic and oleophobic | Repels water and skin oil, so lenses stay cleaner and wipe more easily |
| Blue filter | Reduces a portion of blue-violet light from screens and LED lighting |
| UV protection | Blocks ultraviolet light reaching the eye |
| Anti-fog | Slows condensation on the lens surface |
| Mirror coating | Reflective finish on sunglass lenses, reducing transmitted light further |
Tints
Sun lenses, and what to pick for Indian light
Between glare off the road, dust, and long bright afternoons, the tint choice matters more here than the brochure suggests.
Polarised
Filters horizontally reflected light, which is what glare off wet roads, car bonnets and water actually is. The improvement while driving is immediate and obvious. Slight downside: some phone and dashboard screens go dark at certain angles.
Plain tint
Uniform darkness across the lens, in whatever depth you choose. More affordable than polarised and available in more colours. Reduces overall brightness but does nothing specific about reflected glare.
Gradient
Dark at the top, clear towards the bottom. Shades against overhead sun while leaving your near vision usable, which makes them good in the city and poor at the beach.
Photochromic
Clear indoors, darkening in sunlight. One pair instead of two. They darken less inside a car, because windscreens block much of the ultraviolet that triggers them, so they are not a substitute for driving sunglasses.
Brown and amber
Increases contrast and depth perception, which many drivers prefer. A good general purpose choice for Indian daylight and for dusty conditions.
Grey and green
Neutral, keeping colours closest to true. The safest choice if you dislike the way tinted lenses shift what you see, and the standard for general bright sunlight.
Darkness is not protection. A very dark lens without UV filtering is worse than no sunglasses at all, because your pupils open wider behind it. Every pair we sell blocks UV, and you should confirm the same anywhere else.
Progressive adaptation
Struggling with your progressives?
Narrow corridors. Distortion at the edges. Headaches during adjustment. These are not inevitable side effects of progressive lenses, they are often the result of inaccurate measurements, an unsuitable lens design for your lifestyle, or both.
If you have been told you simply cannot adapt to progressive lenses, or if your current progressives are not working the way you expected, book a lens consultation at Panorama Vision. We regularly see patients who have struggled elsewhere and help them find progressive lenses designed around their prescription, visual needs and lifestyle, for clearer and more comfortable vision from day one.
The combination of premium progressive lenses and advanced digital measurements at Panorama Vision provides an exceptionally precise solution for comfortable, natural progressive adaptation. Every lens is carefully tailored to your individual prescription, visual requirements and lifestyle, helping you enjoy clear, seamless vision at every distance.
What we check
- Whether the corridor sits where your pupil actually sits, measured on you, in the frame you are wearing.
- Whether the frame has slipped or spread since it was fitted, which moves the reading zone out of position.
- Whether the lens design suits your day. A desk-heavy job and a driving-heavy job need different corridors.
- Whether a second pair of office lenses would solve the problem better than a stronger progressive.
If your progressives were made elsewhere, that is not a problem. Bring the glasses and the prescription, and we will tell you what is wrong before we quote for anything.
Lens partners
The lens houses we work with
A frame is the part you see. The lens is the part you look through, so we fit glass from houses that publish their designs and stand behind them.
- Carl ZeissGerman optics, precision-ground and consistently strong at the edges of the lens. The reference point most others are measured against.
- EssilorThe largest lens maker in the world, and the origin of the modern progressive. Broad range, dependable coatings.
- HoyaJapanese lenses known for thin, light high-index designs and hard-wearing anti-reflective coatings.
- Vision RxWide everyday range with reliable single vision and progressive options.
- Yash LensIndian-made lenses covering the everyday range, with quick turnaround on standard prescriptions.
Availability of a specific design or coating varies. Ask us and we will tell you what can be ordered and how long it will take.
Choosing
Start with your day, not with the shelf
Four common situations, and where each one usually lands.
Nine hours at a screen
Anti-reflective coating is essential. If you are under forty, single vision with a good coating is usually enough. If you are over forty, office lenses at the desk plus progressives for everything else will be more comfortable than one pair trying to do both.
A lot of driving
Polarised sunglasses for daytime, and anti-reflective coating on your clear glasses for night. The coating is what reduces the halos around oncoming headlights, and it is the change most drivers notice fastest.
A strong prescription
Higher index earns its cost here, and frame choice matters as much as index. A smaller, well proportioned frame will do more for edge thickness than paying up one index step in a large frame.
Glasses for a child
Choosing glasses for a child is about more than just clear vision. It’s about finding the right balance of comfort, durability and style. At Panorama Vision, we offer a range of children’s eyewear designed to keep up with their everyday adventures while ensuring a comfortable fit. With the right frames and lenses, your little one can see clearly, feel confident and enjoy every moment with ease.
Care
How to not ruin a good pair of lenses
Most scratched lenses are scratched by their owners, usually in the same few ways.
- Rinse before you wipe. Dust on a dry lens is sandpaper, and wiping it in is the most common way lenses get scratched.
- Use the microfibre cloth, not your shirt. Shirt fabric holds grit and the weave is far harsher than it feels.
- Avoid alcohol, acetone, glass cleaner and hot water. They degrade coatings. Mild soap and lukewarm water is the correct answer.
- Take glasses off with both hands. One-handed removal is what bends frames out of alignment over months.
- Never leave glasses on a car dashboard. Heat can warp frames and craze coatings.
- Store them lenses up, or better, in the case.
When to come back
Bring them in whenever they stop sitting right, whenever the vision seems less crisp than it was, or once every few months for a clean and tighten if nothing is obviously wrong. There is no charge for any of that, and it costs us five minutes.
How long a pair should last
Coatings typically hold up for two to three years of daily wear before they start to craze, sooner in dusty or humid conditions. Frames last considerably longer if the hinges are maintained. If your prescription is stable and your coating is deteriorating, reglazing your existing frame is usually the sensible move.
Still deciding?
Bring your prescription in
Ten minutes with the actual numbers and the actual frame will settle more than an hour of reading. Bring your current glasses too, they tell us a great deal.