The Viszy Blog
Know your lenses. See better.
Honest, jargon-free advice from our lens experts — on choosing lenses, prescriptions, lens replacement and finding frames that suit you.
Lens replacement
Lens replacement price in India (2026 guide)
From ₹800 for single vision to ₹4,500 for premium progressives — a clear breakdown of what new lenses for your old frame cost, and the hidden charges to watch for.
1 Nov 2026 · 3 min read
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New lenses in an old frame: when it works
Most frames can take new lenses, whatever brand they’re from. Here’s how to tell if yours can, the frames that need care, and what the process looks like.
31 Oct 2026 · 3 min read
Power changed? Keep your frame, change the lenses
A new prescription doesn’t mean new glasses. How often power changes, the signs your lenses are out of date, and how to update them in the frame you love.
30 Oct 2026 · 2 min read
Scratched spectacle lenses: polish, repair or replace?
Toothpaste, baking soda and ‘scratch repair’ kits do more harm than good. Here’s what actually works for scratched glasses, and how to stop it happening again.
29 Oct 2026 · 2 min read
Progressive lens replacement in your existing frame
Switching to progressives, or replacing old ones? What to check in your frame, how much it costs, and tips for adapting to new progressive lenses.
28 Oct 2026 · 2 min read
Single vision vs progressive lenses: which one?
Single vision or progressive? Learn the difference, how to tell from your prescription (look for ADD), costs, adjustment time and which suits your day.
15 Oct 2026 · 3 min read
Are blue-cut lenses worth it? An honest guide
Do blue-cut lenses reduce eye strain? What the research says, who may still like them, and the screen habits that actually help tired eyes. An honest guide.
14 Oct 2026 · 3 min read
How to read your eye prescription (SPH, CYL, ADD)
What SPH, CYL, AXIS, ADD and PD mean on your eye prescription, with a worked example, what minus and plus powers mean, and when to get a new eye test.
13 Oct 2026 · 3 min read
Best glasses frame for your face shape
Round, square, oval, heart or long face? How to find your face shape and the glasses frames that suit it, plus tips on size, colour and lens power.
12 Oct 2026 · 2 min read