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One pair for all distances: KAFA Smart Photochromic Progressive Multifocal Folding Reading Glasses
Product Overview: One pair of glasses, four vision needs
As we age, presbyopia, astigmatism and the need for daily eye care often arise simultaneously. KAFA Progressive Multifocal Reading Glasses are designed specifically for people aged 40 and over, combining:
✅ Photochromic lenses (automatically adapt to indoor and outdoor light)
✅ Blue light protection (segmented blocking of harmful blue light)
✅ Internal progressive multifocal technology (seamless transition between distance, intermediate and near vision)
✅ Ultra-lightweight and foldable for portability (carry with you, clip onto your belt for storage)
No more constantly taking your glasses on and off – a single pair handles walking, watching TV, using your mobile phone and reading.
Key Benefits | Why choose Kafa Smart Photochromic Progressive Glasses?
1. Internal Progressive Multifocal Lenses | No need to switch between distance, intermediate and near vision
Distance zone: Walking, driving, gazing into the distance
Progressive zone: Watching TV, using a computer, chatting and typing
Near zone: Reading, looking at menus, using your mobile phone
Seamless, no visual jumps, smooth transitions, and a more natural fit
2. Smart Photochromic Technology | Changes colour outdoors, crystal-clear indoors
Changes colour rapidly within 5 seconds upon exposure to UV light
Remains crystal-clear and transparent indoors
Automatically provides sunglasses-level protection outdoors
Uniform colour without distortion; equally effective on overcast days
3. Professional Blue Light Protection | Segmented blocking for eye protection without colour distortion
385–415nm: Blue light blocking rate 97.6%
415–445nm: Blue light block rate 25.8%
Retains beneficial blue light, preventing excessive yellowing of the image
4. Foldable and Portable | Clip onto your waist for instant access
High-quality, eco-friendly folding case
Crush-proof and scratch-resistant
Ideal for carrying on the go, travelling and commuting
5. Comfortable Fit | No pinching or pressure on the nose
Adjustable temples (approx. 136mm ±5)
Wide opening angle to suit various face shapes
Comfortable nose pads to reduce pressure during prolonged wear
Product Specifications
Specifications: Description
Brand: KAFA
Glasses Type: Reading glasses / Progressive multifocal / Foldable
Lens Material: Hardened Resin Aspheric
Lens Features: Bifocal + Blue Light Protection + Photochromic
Colour Options: Black / Gold / Silver
Folding Design ✔ Available
Total Width: 144mm
Frame Width: 54mm
Frame Height: 36mm
Bridge Width: 20mm
Temple Length: 137mm (adjustable ±5mm)
Weight Ultra-light (no noticeable pressure when worn)
Hand-measured dimensions may vary by ±1–3mm; actual product dimensions prevail.
Reading Glasses Prescription Guide | How to Choose the Right Strength?
Age Group: Recommended Strength Indicator
Under 50 +100 +1.00D
51–55 +150 +1.50D
56–60 +200 +2.00D
61–65 years +250 +2.50D
66–70 years +300 +3.00D
71–75 years +350 +3.50D
75 years and over +400 +4.00D
Prescription requirements may vary depending on individual visual habits; we recommend selecting a prescription based on the results of an eye test.
Suitable Scenarios | Who needs these glasses?
Scenario: Description
👨💼 Daily office work: Switching between computer and documents without needing to remove glasses
🚶 Outdoor walks: Automatically tints in sunlight to protect your eyes
📱 Using your phone at night: Blue light protection to reduce eye strain
✈ Travel / Driving Clear vision at all distances + convenient folding
Frequently Asked Questions (FAQ) | Addressing Purchase Concerns
Q1: Do progressive multifocal glasses cause dizziness?
A: There is a brief adjustment period initially (usually 1–3 days). We recommend wearing them whilst sitting still at first, then gradually transitioning to walking and outdoor use. Kafa uses an internal progressive design, resulting in a smoother transition zone that is easier to adapt to than traditional progressive lenses.
Q2: Does the photochromic effect work inside a car?
A: Car windscreens block some UV rays, so the lenses will darken less but not become completely transparent inside a vehicle. This is a normal optical phenomenon.
Q3: Does blue light protection affect the colours you see?
A: Kafa uses segmented blocking technology, which does not affect normal visual colour perception and does not cause significant yellowing.
Q4: Is the folding mechanism prone to breaking?
A: Featuring metal hinges and a reinforced structure, it is not prone to damage under normal use, and the folding case provides additional protection.
