Daily Cleaning
Rinse with running cool or lukewarm water (not hot to the touch) first, then wipe with the microfiber cloth. Never dry-wipe lenses — dust scratches coatings.
Storage Checklist
- Always store in a hard case
- Keep away from car dashboards (heat warps frames)
- Use both hands to take your glasses off so the temples are not stressed unevenly
Care Schedule Table
| Task | Frequency | Cost |
|---|---|---|
| Ultrasonic cleaning (only for resin lenses with metal or plastic frames; not for glass lenses or tortoiseshell, horn or wooden frames — it may damage coatings, cause discolouration or loosen screws) | Monthly | Free at shops |
| Screw tightening | Quarterly | Usually free |
| Nose pad replacement | Every 3–6 months, or when pads harden, yellow or deform | Reference price ¥5–20 |
# Cleaning solution ratio (DIY)
water : about 250 ml (cool or lukewarm, not hot)
soap : 1 drop (neutral, no alcohol), stir before use