The Care
Guide

Rinse first

Run lenses under room-temperature water before any wiping. This removes abrasive particles — dust, grit, sand — that would scratch the surface if dragged across it.

Use microfiber only

Only microfiber cloths are safe for optical lenses. Paper towels, tissues, and clothing — even soft fabric — contain fibers coarse enough to create micro-scratches that accumulate over time.

Use proper cleaning solution

A drop of lens spray or mild dish soap works perfectly. Never use ammonia-based glass cleaners — they degrade lens coatings. Never clean dry lenses.

Dry gently

Use a clean, dry microfiber cloth. Light circular motions. No pressure. The lens should be clean, not polished into the surface.

Always use the case

Every Krix Lens ships with a hard case. It exists to protect your frames. Tossing them in a bag, pocket, or purse without the case is the fastest path to bent frames and scratched lenses.

Store lens-up or folded

When not in the case, never place frames lens-down on any surface — even a desk. Any particle between the lens and surface becomes a scratch.

Keep in a consistent location

The case should live somewhere predictable in your bag or on your desk. Inconsistent storage leads to careless handling, which leads to damage.

Never leave in a parked car

Dashboard temperatures in direct sun regularly exceed 160°F. Acetate begins to warp around 140°F. This is the single fastest way to permanently destroy a quality frame.

Apply sunscreen and sprays before wearing

Sunscreen, hair spray, and perfume contain chemicals that directly attack acetate and degrade lens coatings. Apply all of these before putting on your frames.

Use both hands to remove

Single-handed removal stresses one hinge asymmetrically, every single time. Over months, this loosens or damages the stressed hinge. Always use both hands — one on each temple.

Avoid extreme temperature changes

Going from a cold car to a hot environment repeatedly causes expansion and contraction stress on coatings and acetate. Keep frames at reasonable ambient temperatures when possible.

Rinse before every wipe

Repeating this because it matters: the majority of lens scratches are caused by wiping grit across the surface. Rinse first. Every time.

Keep a spare microfiber in your bag

The main reason people use the wrong material to clean lenses is that no microfiber is available in the moment. A spare in your bag solves this entirely.

Keep frames away from keys and coins

Metal objects will scratch acetate and lenses on contact. In bags and pockets, frames should be in their case or in a separated compartment.

Rinse after any salt exposure

After ocean spray, beach conditions, or swimming — rinse frames thoroughly with fresh water as soon as possible. Salt deposits are corrosive to metal hardware and difficult to remove once dried.

Dry completely before storage

Never store wet or damp frames. Water trapped in hinges and between acetate layers promotes corrosion and, in extreme cases, can cause warping.

Check hinge hardware

The hinge area is where salt and moisture concentrate most. Give it extra attention when rinsing and drying. A dry toothbrush can help remove dried salt deposits from hinge screws.

Visible scratching

Scratches that create visible haze, rainbow effects, or visual distortion in your field of view. Minor surface scratches that don't affect vision quality are cosmetic only.

Coating delamination

Visible as bubbling, peeling, or a localized haze that doesn't clean off. Once a coating begins to delaminate, it will continue — replacement is the right call.

UV filter age

UV400 filtering in CR-39 lenses is highly durable, but lenses used in regular direct-sun conditions for 5+ years should be inspected or replaced as a precaution. The filter itself doesn't visibly degrade — you won't see UV filter failure. Replacement is the conservative but correct choice for heavy-use lenses at that age.