Sentient glasses are crafted from premium acetate, quality hinges and high grade optical lenses. To increase the life of Sentient glasses, we recommend the following product care behaviours;

• Always store Sentient glasses in a case to avoid accidental scratches or damage.

• Avoid the use of chemical or household cleaners as these may damage or ruin the glasses. We recommend gently cleaning Sentient glasses with the microfiber cloth supplied.

• Avoid wearing glasses on head as this may cause stretching.

• Acetate products are susceptible to high temperatures and heat. Do not leave products in an environment where temperatures may exceed 50 degrees celsius (such as a hot car or in direct sunlight) for extended periods of time - this will void your warranty. See more information below on lens crazing.

• Products with a matte finish are porous and susceptible to damage by oils and moisturisers. Some make-ups can have an irreversible effect on matte surfaces.

What is lens crazing

Lens crazing is caused by tiny surface fractures forming in the lens coating or material. In optics, it usually appears as a spiderweb, cracked, or hazy pattern

• fine crack patterns 
• rainbow/oily appearance 
• hazy vision in bright light 
• visible damage under overhead lighting

Common Causes

• Heat exposure (ie. hot car)
• Harsh chemicals - ammonia cleaners, alcohol-based cleaners, acetone, hairspray, harsh disinfectants, pool chlorine
• Impact & stress
• Age and wear

Prevention tips

• do not expose to high temperature environments
• use mild cleaners
• handle with care to avoid drops and bending
• use proper microfiber cloth
• stick to high quality lenses like the ones in Sentient glasses!