The Complete Guide to Caring for Your Krix Lens Eyewear

Why Care Matters More Than People Think

Premium materials don't maintain themselves. Italian acetate can warp under sustained heat. CR-39 lenses can develop micro-scratches that compound over time into optical degradation. Spring hinges can corrode in salt air environments. None of this is inevitable — it's the result of specific, preventable mistakes. The good news: proper care is simple once you know what actually matters.

Cleaning Your Lenses Correctly

The single most damaging thing most people do to their lenses: wipe them with whatever's available. Shirt fabric, paper towels, facial tissues — all of these contain fibers coarse enough to create fine scratches on CR-39 over repeated use. These scratches individually aren't visible. Cumulatively, they create a haze that reduces optical clarity and makes lenses look old before their time.

The correct approach is two-step: First, rinse lenses under room-temperature running water to remove any abrasive particles (dust, sand, grit). Skipping this step and wiping directly risks dragging a piece of grit across the lens surface. Second, use a clean microfiber cloth with a single drop of lens cleaning spray (or plain dish soap). Use light circular pressure. Never wipe dry lenses.

• Always rinse before wiping
• Use only microfiber — never paper products or clothing
• Use lens spray or mild soap, not glass cleaner (ammonia damages lens coatings)
• Avoid hot water — thermal shock can stress lens coatings over time

Storage: The Case Is Not Optional

Every Krix Lens frame ships with a hard case for a reason. Lenses left face-down on a surface accumulate scratches from microscopic particles on that surface. Frames left loose in a bag get compressed and bent by other objects. The case is the single most impactful care investment available — and it's already in the box.

For travel specifically: keep the case in a consistent location (outer pocket, bag compartment) rather than loose in a main compartment. The majority of frame damage happens in transit, not in use.

What to Avoid

These are the most common ways good frames are ruined ahead of their time:

• Leaving frames in a car. Dashboard temperatures in direct sun can exceed 170°F — well above the acetate warping threshold of roughly 140°F. The car interior is the fastest way to permanently distort a frame.
• Setting frames lens-down. Even on seemingly smooth surfaces. Always set them lens-up or folded in the case.
• One-handed removal. Always use both hands to remove frames — one on each temple. Single-hand removal consistently stresses one hinge more than the other over time.
• Chemical exposure. Sunscreen, hair spray, and perfume are the primary culprits. Apply these before putting on your frames, not after. Many of these chemicals attack acetate and lens coatings directly.

Salt Water and Humidity

Beach and marine environments are high-risk for eyewear. Salt water residue is corrosive to metal components and can leave mineral deposits on lenses that require professional removal if left too long. After any salt water exposure — spray, swimming, or humid coastal air — rinse your frames thoroughly with fresh water and dry them completely before storing. Pay particular attention to the hinge area and nose pad hardware where salt deposits concentrate.

When to Think About Lens Replacement

A well-maintained CR-39 lens can last many years. Signs that replacement is warranted: visible scratching that doesn't resolve with cleaning, delamination of coatings (visible as a hazy or bubbled area), or UV filter degradation (invisible, but lenses older than 5-7 years in regular direct-sun use should be tested or replaced). Frame replacement is almost never necessary if the frame itself is cared for — we've seen well-maintained acetate frames in active daily use for over a decade with zero structural degradation.