Regarding the function of the products, we now have 4 main types available: optical eyeglasses and sunglasses. Only optical glasses can be prescribed to single-vision or Blue light filtering glasses.
There is one special sunglasses lens that is truly unique and popular-Polarized polycarbonate lenses. They are:
• Thin and light plastic lenses
• Anti-scratch, anti-glare, and superhydrophobic coatings included
• Provide 100% UV protection
Our sunglasses' 100% UV protective function also render them perfect outdoor accessories.
Prescription sunglasses are available for nearsightedness only. Please check your prescription before submitting all information. All the lenses in the Prescription Sunnies page are customized. Due to the specialized nature of prescription lenses and all blue light filter lenses (with or without prescription), customized lenses are non-refundable, except the frame part. We may still charge you the lenses if you cancel the order after 12 hours of payment or return the prescription sunglasses.
Where can I find my frame's measurements?
On each product page, the frame measurements are listed as three numbers. Most glasses (including all TIJN frames) have these numbers printed on the inside of the temple arm. You can use these measurements to compare our frames to the size of your current glasses.
What's the best way to clean my lenses?
To clean your lenses, simply rinse them with a mild dish soap and lukewarm water, and dry them with a soft cloth. For day-to-day cleaning of light smudges, a few swipes of the pouch included in your case should do the trick. Please be careful to avoid using hot water on your lenses (especially if they are high-index lenses), as they can develop bubbles or cracks when exposed to high heat.