Yes, you can generally use lens cleaner on sunglasses, but it's crucial to confirm that the specific lens spray can be used on coated and anti-reflective lenses. This distinction is vital because many sunglasses feature specialized coatings that can be damaged by inappropriate cleaning solutions.
The Importance of Lens Coatings
Modern sunglasses often feature advanced coatings that enhance their performance and durability. These can include:
- Anti-Reflective (AR) Coatings: Designed to reduce glare and reflections, improving visual clarity. These are often the most delicate coatings.
- Scratch-Resistant Coatings: Provide an extra layer of protection against minor abrasions.
- UV Protection Coatings: Block harmful ultraviolet rays from reaching your eyes.
- Hydrophobic/Oleophobic Coatings: Repel water, oils, and smudges, making lenses easier to clean.
While lens cleaners are formulated to be safe for most lens materials, their compatibility with all types of coatings, especially the sensitive anti-reflective ones, is not always guaranteed.
When to Use Lens Cleaner on Sunglasses
Using a dedicated lens cleaner spray can be an excellent option for maintaining your sunglasses, and it can replace dish soap for cleaning. It is appropriate when:
- Manufacturer Confirmation: The lens cleaner explicitly states it is safe for all lens types, including those with anti-reflective or other specialized coatings. Always check the product label or the manufacturer's website for this information.
- Known Compatibility: If you've used the product successfully on similar coated lenses before, or it comes recommended by your optician.
When to Be Cautious and Consider Alternatives
The provided guidance is clear: "If in doubt, avoid this product and use a natural soap, such as Dawn." This advice is key to protecting your sunglasses from potential damage.
- Uncertainty About Coatings: If you are unsure whether your sunglasses have specific coatings, or if the lens cleaner is compatible with them, it's safer to opt for a milder alternative.
- Harsh Chemicals: Avoid household glass cleaners (e.g., window cleaner), ammonia-based solutions, or harsh chemicals. These can strip or degrade lens coatings over time, leading to discoloration, peeling, or reduced performance.
Best Practices for Cleaning Sunglasses
Whether you choose a lens cleaner or a mild soap, proper cleaning technique is essential to prevent scratches and maintain lens clarity.
- Rinse Thoroughly: Always begin by rinsing your sunglasses under cool or lukewarm running water. This removes loose dust, dirt, and debris that could scratch the lenses during the cleaning process.
- Apply Cleaning Solution:
- Using Lens Cleaner Spray: Spray a small amount of the cleaner onto both sides of each lens.
- Using Natural Soap: Apply a tiny drop of a natural, mild dish soap (like Dawn) to your fingertips. Lather it gently with a bit of water, then gently apply it to the lenses and frame.
- Gentle Cleaning: Using your fingertips or a very soft, clean cloth, gently rub the lenses and frame to dislodge dirt and oils.
- Rinse Again: Rinse the sunglasses thoroughly under cool running water. Ensure all soap or cleaner residue is completely removed, as any remaining film can cause streaks.
- Drying Properly:
- Crucially, always avoid drying sunglasses with paper products such as paper towels, tissues, or napkins. These materials, even if they feel soft, can be abrasive and cause micro-scratches on your lenses.
- Instead, use a clean, soft microfiber cloth specifically designed for eyewear. These cloths are designed to be lint-free and gentle on delicate lens surfaces. You can also allow them to air-dry and then gently buff with a microfiber cloth if needed.
Quick Reference: Sunglass Cleaning Do's and Don'ts
| Do's | Don'ts |
|---|---|
| Use lens cleaner (if coating-safe) | Use harsh chemical cleaners |
| Use natural, mild dish soap (e.g., Dawn) | Use paper products (towels, tissues, napkins) |
| Rinse thoroughly with water | Wipe dry without rinsing |
| Dry with a clean microfiber cloth | Use clothing, shirt sleeves, or abrasive materials |
| Confirm compatibility with coatings | Expose to extreme heat (e.g., car dashboard) |
By following these guidelines, you can effectively clean your sunglasses while preserving their coatings and extending their lifespan.
