Eyewear & Vision
Education Center
Learn about eyeglass frames, lenses, prescription options, frame materials, lens coatings, and how to properly care for your eyewear.
The History of Eyeglasses
The first eyeglasses appear in Italy — handheld magnifying lenses used by monks for reading.
Benjamin Franklin invents the bifocal lens, combining distance and reading correction in a single lens.
Mass-produced prescription lenses become widely available; lightweight plastic frames emerge.
Polycarbonate lenses are developed — impact-resistant lenses originally created for aerospace.
Progressive lenses, photochromic transitions, and high-index lenses transform vision correction.
Modern eyewear blends vision correction, fashion, blue-light filtering, and advanced lens coatings.
Anatomy of Eyeglasses
Every component of a modern eyeglass frame.
The main body that holds the lenses and sits across your face.
The center section that rests on or above your nose, connecting the two lenses.
The two long arms extending from the frame front to your ears.
Small joints that allow the temples to fold inward. Common failure point.
Cushions that rest on the nose — fixed (acetate) or adjustable (metal frames).
The portion of the frame that encircles each lens — can be full, semi, or rimless.
The prescription or non-prescription optical surface that corrects or protects vision.
Where the frame front connects to the temples and hinges.
The curved ends of the temples that hook behind the ears for grip.
Tiny fasteners that hold the hinges and nose pad arms — work loose over time.
Types of Eyeglass Frames
Ten essential frame styles — and who each one is for.
Full Rim Frames
Classic style dating to the 1800s.
- Best Face:
- All face shapes
- Durability:
- High
- Weight:
- Medium
- Style:
- Classic / Versatile
Semi-Rimless Frames
Popularized mid-1900s for a lighter look.
- Best Face:
- Oval, Heart
- Durability:
- Medium
- Weight:
- Light
- Style:
- Modern / Professional
Rimless Frames
Refined minimalist style from the 1880s.
- Best Face:
- Oval, Round
- Durability:
- Lower
- Weight:
- Very Light
- Style:
- Minimalist / Executive
Aviator Frames
Designed for U.S. pilots in 1937 by Bausch & Lomb.
- Best Face:
- Square, Heart
- Durability:
- High
- Weight:
- Light
- Style:
- Iconic / Sporty
Round Frames
Popularized in the 1920s and again by John Lennon.
- Best Face:
- Square, Diamond
- Durability:
- Medium
- Weight:
- Light
- Style:
- Vintage / Intellectual
Rectangle Frames
A modern staple — clean, angular geometry.
- Best Face:
- Round, Oval
- Durability:
- High
- Weight:
- Medium
- Style:
- Professional / Modern
Square Frames
Bold geometric frames trending since the 2010s.
- Best Face:
- Round, Oval
- Durability:
- High
- Weight:
- Medium
- Style:
- Bold / Fashion-forward
Cat Eye Frames
1950s fashion icon designed by Altina Schinasi.
- Best Face:
- Round, Heart
- Durability:
- Medium
- Weight:
- Light
- Style:
- Retro / Feminine
Wayfarer Frames
Launched by Ray-Ban in 1952 — one of the best-selling frames in history.
- Best Face:
- Oval, Round
- Durability:
- High
- Weight:
- Medium
- Style:
- Casual / Timeless
Sports Frames
Wrap-around designs engineered for athletic performance.
- Best Face:
- All shapes
- Durability:
- Very High
- Weight:
- Light
- Style:
- Athletic / Performance
Frame Materials Guide
What your frame is made of changes everything — weight, durability, comfort, and price.
Acetate Frames
- Premium appearance
- Rich layered colors
- Comfortable on skin
- Hypoallergenic
- Can crack if dropped
- Heavier than metals
Metal Frames
- Lightweight
- Durable
- Easily adjustable
- Slim profile
- Can bend under impact
- May trigger allergies (nickel)
Titanium Frames
- Extremely lightweight
- Corrosion resistant
- Hypoallergenic
- Memory flex
- Higher cost
- Limited color options
Stainless Steel Frames
- Durable
- Affordable
- Corrosion resistant
- Slim and modern
- Heavier than titanium
TR90 (Nylon) Frames
- Flexible — bends without breaking
- Lightweight
- Sports friendly
- Heat resistant
- Less premium appearance
Frame Repair Education
The most common eyewear repairs — and how we fix them.
Broken Hinge Repair
Hinges loosen from daily flexing. We re-pin, re-screw, or solder broken hinges.
Plastic Frame Repair
Cracked acetate fronts and temples are bonded and reinforced using specialty plastic welding.
Metal Frame Welding
Snapped metal bridges and temples are precision-welded and refinished.
Titanium Frame Repair
Titanium requires laser welding — we partner with specialty labs for full restoration.
Temple Arm Repair
Bent, snapped, or stripped temple arms are straightened, soldered, or replaced.
Bridge Repair
The most stressed part of any frame — bridges are soldered, reinforced, or rebuilt.
Nose Pad Replacement
Worn, yellowed, or missing pads replaced with silicone or hypoallergenic upgrades.
Screw Replacement
Lost hinge or nose pad screws replaced and re-torqued in minutes.
Frame Adjustment
Crooked, loose, or pinching frames professionally re-aligned for proper fit.
Prescription Lens Types
Which lens design fits the way you actually use your eyes.
Single Vision
One prescription strength across the lens — for distance, intermediate, or reading.
Bifocal
Two prescriptions in one lens (distance + reading) with a visible line. Best for presbyopia.
Progressive
Three prescriptions seamlessly blended (distance, intermediate, reading) with no visible line.
Reading Glasses
Magnifying lenses for close-up tasks. Available as full readers or half-frames.
Computer Glasses
Optimized for arm's-length screen distance with optional blue-light filtering.
Occupational Lenses
Custom designs for specific jobs — pilots, surgeons, mechanics, electricians.
Lens Material Guide
Compare every modern lens material side-by-side.
| Material | Weight | Thickness | Durability | Impact | Clarity | Notes |
|---|---|---|---|---|---|---|
| Standard Plastic (CR-39) | Medium | Thick | Medium | Low | Excellent | Affordable entry-level lens. Scratches easily without coating. |
| Polycarbonate | Light | Thin | High | Excellent | Good | Standard for kids, sports, and safety glasses. Built-in UV protection. |
| High Index (1.67 / 1.74) | Very Light | Very Thin | Medium | Medium | Excellent | Best for strong prescriptions — dramatically thinner and lighter. |
| Trivex | Very Light | Thin | High | Excellent | Superior | Premium impact-resistant material with clearer optics than polycarbonate. |
| Glass | Heavy | Thin | Scratch-proof | Poor (shatters) | Best | Sharpest optics available, but heavy and dangerous on impact. Rare today. |
Lens Coatings Explained
The treatments that make modern lenses clearer, safer, and longer lasting.
Anti-Reflective (AR)
Eliminates glare from screens, headlights, and overhead lights. Lenses look invisible — ideal for driving and computer work.
Blue Light Filter
Reduces high-energy blue light from screens that contributes to digital eye strain and disrupted sleep.
Scratch Resistant
Hardened coating that protects lenses from minor scratches. Standard on most modern lenses.
UV Protection
Blocks 100% of UVA and UVB rays — protects against cataracts and macular degeneration.
Mirror Coating
Reflective coating on sunglasses — reduces light entering the eye and adds bold style.
Photochromic (Transitions)
Lenses that darken automatically in sunlight and clear indoors. One pair for indoor and outdoor use.
Hydrophobic
Repels water, oil, sweat, and smudges. Lenses stay cleaner longer with less wiping.
Sunglasses Education
Not all sunglasses are created equal — here's what to look for.
UV Protection
Essential baseline — blocks UVA/UVB rays that damage corneas and retinas.
Polarized
Filters horizontal glare from water, snow, and roads. Best for driving, fishing, boating.
Mirror Lenses
Reflective outer coating reduces light entering the eye — popular for bright outdoor conditions.
Gradient
Darker at the top, lighter at the bottom — shields overhead sun while keeping the dashboard visible.
Photochromic
Light-reactive lenses that adjust tint based on UV exposure — useful for variable conditions.
Prescription vs Non-Prescription Sunglasses
When it's worth upgrading to prescription sunwear.
| Attribute | Prescription | Non-Prescription |
|---|---|---|
| Vision Correction | Yes — full Rx replaces daily glasses outdoors | None — distance vision unchanged |
| UV Protection | 100% UVA/UVB built in | Varies — check label (cheap sunglasses often lack UV) |
| Customization | Tint, polarization, coatings, mirror, gradient | Limited to off-the-shelf options |
| Cost | $$$ — premium investment | $ – $$ — varies by brand |
Common Eyewear Problems
The issues we diagnose and fix every day.
Why Are My Glasses Crooked?
Daily wear loosens hinges and bends temple arms. A professional adjustment realigns the frame in minutes.
Why Do My Glasses Slide Down?
Loose temple tips, worn nose pads, or a stretched-out bridge. Each is an easy in-store adjustment.
Why Are My Frames Loose?
Hinge screws back out from constant opening/closing. Re-torquing and a drop of thread-lock usually fixes it permanently.
Why Did My Frame Break?
Metal fatigue, dropped impact, heat exposure (hot car), or sleeping in glasses. Most breaks can be welded or soldered.
Why Are My Lenses Scratched?
Cleaning with paper towels, shirts, or dry wiping rubs grit into the coating. Always use a microfiber cloth with lens spray.
Why Do My Glasses Cause Headaches?
Misaligned frames, outdated prescription, or improperly fitted progressives. Start with an adjustment and an eye exam.
Why Are My Nose Pads Turning Green?
Sweat oxidizes the copper alloy under silicone pads. Replace the pads — the discoloration won't return with hypoallergenic upgrades.
Why Is My Lens Coating Peeling?
Heat, chemicals, age, or improper cleaning break down anti-reflective coatings. Once peeling starts, lenses must be replaced.
How To Care For Your Eyewear
Simple habits that double the life of any frame or lens.
Do
- Store glasses in a hard case when not worn
- Clean only with a microfiber cloth and lens spray
- Rinse lenses under lukewarm water before wiping
- Use both hands when putting glasses on and off
- Have frames professionally adjusted every 6 months
- Replace nose pads when they yellow or crack
Avoid
- Paper towels, napkins, or shirts to clean lenses
- Harsh chemicals — ammonia, alcohol, glass cleaner
- Extreme heat — hot cars, dashboards, hair dryers
- Leaving glasses lens-down on any surface
- Pushing up glasses with one hand (bends frames)
- Sleeping in your glasses
Can Heat Damage Eyewear?
Yes — heat is the #1 cause of frame warping and coating failure.
Hot Vehicles
Interior temps reach 160°F+ — warps frames and bubbles lens coatings.
Hair Dryers
Direct hot air softens acetate and damages AR coatings within seconds.
Saunas & Steam
Repeated heat-and-cool cycles cause lens coatings to crack and flake.
Direct Sunlight
Leaving glasses on a dashboard or windowsill warps frames and dulls finishes.
Possible damage: warped frames, bubbled or peeling lens coatings, lens distortion, and shrinkage on acetate fronts. Heat damage is almost always permanent — frames must be re-aligned and lenses replaced.
Why Lens Coatings Fail
Coatings are microscopically thin — and they don't last forever.
Age
Most AR coatings last 2–3 years before microscopic crazing begins.
Heat Exposure
Hot cars and hair dryers cause coatings to bubble, peel, and crack.
Chemical Exposure
Ammonia, alcohol, hairspray, and household cleaners dissolve coatings.
Improper Cleaning
Dry wiping and paper towels grind dust into coatings and scratch them off.
Once a coating begins crazing or peeling, it cannot be repaired — the lens must be replaced. Schedule lens replacement to restore clear vision.
How To Choose The Right Frame For Your Face
A simple guide to frame shapes that complement your features.
Round Face
Rectangle, Square, Wayfarer
Angular frames add definition and length.
Oval Face
Most frame styles
Balanced proportions suit nearly any frame.
Square Face
Round, Oval, Aviator
Curved frames soften strong jawlines.
Heart-Shaped Face
Aviator, Round, Cat Eye
Frames wider at the bottom balance a broader forehead.
Diamond Face
Cat Eye, Oval, Rimless
Frames that highlight the brow line balance narrow cheekbones.
How To Choose The Right Lens
The right lens depends on how — and where — you use your eyes.
Driving
Polarized sunglasses with anti-reflective coating. Reduces glare from windshields and headlights.
Computer Work
Single-vision or computer-specific lenses with blue-light filter and AR coating.
Reading
Single-vision readers or progressives. Match magnification to typical reading distance.
Outdoor Activities
Polycarbonate or Trivex lenses with full UV protection and impact resistance.
Sports
TR90 or sport frames with polycarbonate lenses. Wrap-around for wind and debris protection.
Daily Wear
Polycarbonate or high-index lenses with AR, scratch, and UV coatings. The all-around choice.
Frequently Asked Questions
HA Jewelers Eyewear Services
Full-service eyewear repair and lens replacement, performed in-house.
Eyeglass Repair
Full repair service for broken hinges, temples, bridges, and frame fronts.
Frame Welding
Precision soldering and welding for metal and titanium frames.
Plastic Frame Repair
Specialty bonding and reinforcement for cracked acetate and TR90 frames.
Titanium Frame Repair
Laser welding partnerships for premium titanium frame restoration.
Nose Pad Replacement
Silicone and hypoallergenic nose pad upgrades — eliminates green skin marks.
Screw Replacement
Lost hinge and nose pad screws replaced same-day with the correct thread.
Frame Adjustment
Professional realignment for crooked, loose, or pinching frames.
Prescription Lens Replacement
Re-lens any frame with your current prescription — single vision, bifocal, or progressive.
Custom Lenses
Specialty lenses including blue light, photochromic, polarized, and high-index.
Sunglass Repair
Repair and re-lens for prescription and designer sunglasses.
Why Trust HA Jewelers
Macomb County's trusted destination for eyewear repair and lens replacement since 2013.
Need Help With Your Eyewear?
Visit HA Jewelers for eyeglass repairs, frame restoration, prescription lenses, adjustments, and professional eyewear services.