Complete Guide
How to Choose Eyeglass Lenses
Design tier first, then refractive index and coatings, brand last
Within a single brand, lenses run from entry level to personalized custom, several tiers apart; the same refractive index can come in completely different designs. This page puts the four decisions in choosing a lens in order. Written by Optometrist YoYo.
- ✦Beyond Visual is a contracted, certified ZEISS dealer and a HOYA dealer. We do not carry or order NIKON or Essilor lenses, but we can help you compare them.
- ✦The gap between design tiers within one brand is often larger than the gap between brands, so settle the tier first and compare brands after.
- ✦Refractive index governs lens thickness and weight; a higher number does not mean sharper vision.
- ✦Coatings govern reflections, how easily the lens cleans and how well it resists scratches.
What differs between lens brands isn't the logo — it's these three things
Many people assume the difference between lens brands is just "how big the name is" or "where it's made." In reality, when two quotes for progressive lenses are far apart, the gap comes from three levels you can't see:
One: optical design capability. A progressive lens inevitably has aberration zones on either side of the corridor, where the view is distorted and blurry. Design tiers differ in how those zones are laid out and how the clear field is distributed. Each manufacturer takes its own optical approach to this.
Two: coating technology. Anti-reflective, scratch-resistant, anti-smudge, and blue-light filtering directly affect a lens's clarity and service life. This is the part most easily overlooked when choosing a lens, yet felt every day.
Three: personalized custom capability. Whether your vertex distance, pantoscopic tilt, face-form angle and fitting height are factored into the calculation, so the optical design is tailored to how the frame sits on your face. For someone facing a screen ten hours a day, it comes down to which zone of the lens the screen distance falls into, and how wide that zone is.
ZEISS, HOYA, NIKON, Essilor: how to get them at Beyond Visual
We carry ZEISS and HOYA: ZEISS as a contracted, certified dealer, HOYA as a dealer. We do not carry or order NIKON or Essilor lenses; what we can do is help you compare them.
| Brand | Origins | At Beyond Visual |
|---|---|---|
| ZEISS (Germany) | 1846; microscopes and precision optical instruments | Contracted, certified dealer; available at both Xinzhuang and Banqiao |
| HOYA (Japan) | 1941; optical glass | Dealer; available at both stores |
| NIKON (Japan) | Cameras and optics; the eyeglass-lens business is run by Nikon-Essilor, jointly owned by Nikon and Essilor (per the manufacturer's public information) | Not carried or ordered; comparison consultation only |
| Essilor (France) | 1849; lenses as its core business | Not carried or ordered; comparison consultation only |
How to choose by your needs? First see which box you fall into
The brand isn't the point — first confirm your viewing scenario, then match it back to a suitable series.
Progressive / Presbyopia
Need clarity at far, intermediate, and near without constantly swapping glasses. Progressive lenses also come in tiers from entry to personalized custom — confirm how your daily viewing distances are spread before choosing.
High Myopia / High Astigmatism
The higher the prescription, the more the lens-to-eye distance and the forward tilt of the frame change the power your eye actually receives, so these fitting parameters are factored in when the lens is ordered. Refractive index is discussed at the same time.
All-Day Screen Use
On screens and phones all day, but no need for reading glasses yet. Consider single-vision lenses with a near-addition design: a small amount of plus power is added to the lower part of the lens, so your eyes work a little less up close, and the lens looks the same as a regular single-vision lens. The ZEISS and HOYA lines we carry both include this type of design.
Limited Budget / Simple Prescription
For a low prescription without much astigmatism, a standard-design single-vision lens corrects your vision well. Here the budget is better spent on a full vision exam and frame adjustment than on a higher tier.
Optometrist YoYo's principle: first analyze how your viewing distances are spread across a day (how many hours driving, how many on screens, how far your reading distance is), then decide on the tier and brand — not decide on a product first and then talk you into it.
The lens "tier" matters more than the "brand"
The gap between different series within one brand is often larger than the gap between brands. What differs between tiers is how the power is distributed across the lens surface, and whether the calculation uses average values or your own measurements.
Standard Design
Designed around one set of average fitting parameters: how far the frame sits from the eye and how far it tilts forward are assumed to be the same for everyone. Enough for simple prescriptions and fairly constant viewing distances.
Digitally Optimized Design
The curvature at each point of the lens surface is calculated for your prescription, so the periphery of a single-vision lens, or the corridor and side zones of a progressive, are laid out for your power.
Personalized Custom
Beyond your prescription, four measurements taken with your chosen frame on are factored in: vertex distance, pantoscopic tilt, face-form angle and fitting height. Both stores take personalized custom orders; ZEISS Individual² belongs to this tier.
When personalized custom is worth it, and when it isn't: Are ZEISS Personalized Custom Lenses Worth It? A Full Analysis of Cost, Difference, and Who Benefits
The frame decides what the lens can do
By this point the four decisions are in order: design, refractive index, coatings, brand. It is easy to think the lens is now chosen. But all four still have to fit into a frame. The moment a frame is picked, part of the outcome is already fixed: how thin the lens can get, how long a progressive corridor can be, which materials can be used. Whatever you choose for the other four, you are choosing within the room the frame leaves.
- ●A large frame means thick edges. A myopic lens is thin in the middle and thicker towards the edge, and the larger the frame, the more of that outer ring stays in the frame. At the same -7.00D, a 50 mm frame with a 1.67 lens may well look slimmer from the side than a 56 mm frame with a 1.74 lens; moving up one index step does not make up for the extra thickness of a frame one size larger.
- ●A shallow frame leaves no room for a long corridor. A progressive lens runs from distance at the top through intermediate to near at the bottom. If the frame is not tall enough, a shorter corridor has to be used, where the power changes more quickly and the blur at the sides is more noticeable. The trade-offs are set out in What Is the 'Corridor' in Progressive Multifocal Lenses?
- ●Rimless and semi-rimless frames narrow the material choice. A rimless frame is drilled through the lens, so the lens itself holds the glasses together; a semi-rimless frame needs a groove cut into the lens edge. Tougher materials cope better with the stress around the drill holes, regular resin and high-index lenses leave less margin for error, and glass is not suited to drilling. A 1.74 lens in a rimless frame needs to be assessed before ordering.
So when you actually sit down to order, the steps interleave. Settle the direction of the design first, such as whether this pair will be progressive, and take that into frame selection; once the frame is chosen, the refractive index falls within what it can hold, and the coatings follow how you use your glasses. Choose the frame with the lens already in mind.
Choosing lenses: frequently asked questions
Q: Should I choose the lens brand first, or the design tier?
The design tier first. Between standard, digitally optimized and personalized custom designs, the gap from one tier to the next is often larger than the gap between brands within the same tier. So we set the tier first, based on your prescription and the distances you use your eyes at through the day, and only then compare lenses of the same tier side by side. That is when a comparison tells you something about the brand. Beyond Visual carries ZEISS (as a contracted, certified dealer) and HOYA, so both brands can be compared within the same tier.
Q: If I can only upgrade one of design, refractive index or coating, which should it be?
Start with whatever bothers you most. If the lens edges look thick or the glasses feel heavy, check first whether the frame is on the large side; only once the frame size is right does refractive index come in, and a higher index also reflects more light, so look at an anti-reflective coating at the same time. Distortion when you look to the side, or an intermediate zone on a progressive lens that feels too narrow for the computer, is a design matter. Reflections, smudges that won't wipe off and scratches are a coating matter. Upgrade the one that matches. If none of the three bothers you, staying at your current tier is fine too.
Q: What should I think about before choosing lenses in store?
Think about the distances your eyes work at during a day: how long you drive, how long you are on a computer, how long you read or look at your phone, whether you drive at night, and whether you work outdoors. Bring the glasses you wear now and tell us what feels right and what doesn't. This tells our licensed optometry staff more about which lens suits you than deciding on a brand in advance.
Q: Can I look at lens samples before deciding?
Yes. Our stores keep samples of blue-light filtering lenses and glass lenses, so you can hold them, check the tint, tilt them to see the reflection, and compare their weight with resin lenses. We do not currently carry anti-fog lenses. Differences between design tiers can't be seen by holding a lens; they show when you wear it and look through it, so our licensed optometry staff explain that part based on your prescription and viewing distances.
About the author and sources
YoYo (Cheng Chia-Yu), Optometrist
Optometrist License No. 003309 | Graduate of Yuanpei University of Medical Technology | Lecturer, New Taipei City Optometrists Association
Lead optometrist at Beyond Visual Optometry × BiYang Optometry Clinic, specializing in clinical vision exams, binocular vision assessment, progressive lens fitting and children's myopia tracking.
Meet Optometrist YoYo →
Sources
- ZEISS Vision Care Taiwan (official website, in Chinese)
- HOYA Vision Care Taiwan (official website, in Chinese)
- Nikon-Essilor: officers and shareholders (in Japanese; shareholders and Essilor founding year)
- Beyond Visual: ZEISS and HOYA lens series (2026 product names and refractive indices)
- Fresnel equations (surface reflectance and refractive index)
- Optometrists Act (Laws & Regulations Database of the ROC, in Chinese)
Brand founding years and series names follow the manufacturers' public information listed above; product names follow the 2026 version of our lens series page. That reflections increase with refractive index follows from the Fresnel equations. The four personalized fitting measurements and collection times come from how our Xinzhuang and Banqiao stores place orders and from their collection records. Last updated: October 23, 2026.
Articles on choosing lenses
Lens brands
Zeiss, HOYA & Nikon Lenses Explained: A Xinzhuang Optometrist's Guide to International Lens Brands
Zeiss, HOYA, Nikon, Essilor—you've heard these names at every optical shop, but what does each of them actually do? Why do some people say Zeiss is the best while others say they're all about the same? This article takes an introductory approach to help you build a basic understanding of the major international lens brands.
LensesThe Complete Guide to HOYA Lenses: Japanese Optical Craftsmanship for Your Everyday Vision Needs
HOYA is one of Japan's leading names in precision optics, with a lineup spanning single-vision lenses to personalized progressive multifocals that covers nearly every visual need. Optometrist YoYo at Beyond Visual Optometry walks you through the design logic behind each HOYA series and who it's best suited for.
LensesEssilor Lenses Explained: The French Optical Giant's Design Philosophy and Flagship Series
Essilor is one of the world's largest lens manufacturing groups, with a product line spanning everyday single-vision lenses all the way to premium personalized progressives. Optometrist YoYo walks you through Essilor's core technologies and how each series is designed.
LensesWhere to Get ZEISS Lenses in Banqiao: Certified Dealers and Lens Tiers Explained
Looking to get ZEISS lenses in Banqiao? How do you confirm a store is an officially certified dealer? What's the real difference between ZEISS's entry-level and Individual² tiers? Beyond Visual Optometry — a 30-year practice by Jiangzicui Station — breaks it all down.
Refractive index & thickness
What Is Lens Refractive Index? What's the Difference Between 1.60, 1.67, and 1.74? | Beyond Visual Optometry
Refractive index determines how thick or thin a lens is — the higher the number, the thinner the lens. Here's a clear breakdown of everything from 1.50 to 1.74, so you understand this key term before your next fitting at our Xinzhuang or Banqiao store.
LensesGlass vs. Resin Lenses: What's the Real Difference, and Is Glass Still Worth Choosing? | Beyond Visual Optometry
Glass lenses resist scratches and deliver cleaner optics, yet they've nearly disappeared from Taiwan's optical shops. Resin is lighter, safer, and easier to coat or tint — which is why it's now over 90% of what gets fitted. This guide breaks down weight, thickness, Abbe number, scratch resistance, and impact safety, and explains who still genuinely benefits from glass. At Beyond Visual Optometry in Xinzhuang and Banqiao, an optometrist reviews your prescription, frame, and daily visual habits before explaining which material actually fits you.
Lens design & coatings
What Is an "Aspheric" Lens? How Is It Different From Spherical?
An aspheric lens has a surface curve that changes gradually, which makes the lens flatter and keeps peripheral vision more stable. Here's the plain-language difference between spherical, aspheric, and double-aspheric — worth understanding before you order glasses in Xinzhuang or Banqiao.
LensesWhat Are Lens Coatings? Anti-Reflective, Blue-Light, Scratch- and Smudge-Resistant Coatings Explained | Beyond Visual Optometry
Lens coatings determine how clear, durable, and comfortable a pair of glasses actually is. Optometrist YoYo at Beyond Visual Optometry walks you through anti-reflective, blue-light, scratch-resistant, and smudge-resistant coatings — come compare them in person at our Xinzhuang or Banqiao store.
LensesHow Anti-Reflective Coating Works: Why a Thin Film Stops Glare
Anti-reflective coating uses "light interference" to cancel out reflected light, which is what makes a lens look clear instead of glassy. A plain-language breakdown of the optics — worth understanding before you order lenses in Xinzhuang or Banqiao.
LensesWhat Does a Blue Light Filter Lens Actually Filter? (Wavelength and Principle)
Blue light is the segment of visible light with a wavelength of roughly 400–500 nanometers. Blue light filter lenses reduce that segment through either "absorption" or "reflection." This article sticks strictly to the optics — worth knowing before you order glasses in Xinzhuang or Banqiao.
Further reading: progressive lenses and high myopia
Not sure which lens suits you?
Our licensed optometry staff first check your prescription and listen to how you use your eyes through the day, then help you choose a frame and work through the four lens decisions with that frame in mind. Bookings are available at both our Xinzhuang and Banqiao stores.
Book a Vision Consultation →