Contact Lens Day (Kontakuto Renzu no Hi)

What Is Contact Lens Day?

September 10th is "Contact Lens Day" in Japan. It was established by the Japan Contact Lens Association and registered with the Japan Anniversary Association in 2017. Its aims are the sound development of the industry and wide public awareness of how to use contact lenses correctly and safely. While contact lenses can now easily be bought online, some people develop eye problems by continuing improper care without seeing an eye doctor, so the day also stresses the importance of regular checkups.

Why Is September 10th "Contact Lens Day"?

The Japan Contact Lens Association gives the following reasons for the date.

• The motion of putting in a lens: The image of placing a lens on your index finger and bringing it to your eye resembles the shapes of "9" and "10."
• Wordplay: The "kuto" in "kontakuto" (contact) can be read as "ku" (9) and "to" (10).
• One month before Eye Protection Day: It falls one month before "Eye Protection Day" on October 10th, and the association hopes to establish the month in between as a period for raising awareness of contact lenses and eye health.

What Are Contact Lenses?

Contact lenses are thin lenses worn directly on the cornea, used to correct vision or for cosmetic purposes. They come in a wide variety of types—hard, soft, and disposable—so people can choose what suits their lifestyle.

• Hard lenses: High oxygen permeability, suitable for long-term use.
• Soft lenses: Comfortable to wear and beginner-friendly.
• Disposable lenses: Available in daily, two-week, and monthly varieties; popular for their hygiene benefits.

How to Use Contact Lenses Correctly

While convenient, contact lenses can cause eye trouble if used incorrectly.

• Follow wearing time limits: Wearing lenses too long puts strain on the cornea.
• Handle with clean hands: Dirt and bacteria on lenses can cause inflammation.
• Lens care: Don't skip cleaning and replacing the storage solution.
• Regular checkups: Routine eye exams are essential for preventing problems.

Interesting Facts About Contact Lens Day

• Number of wearers in Japan: Especially among younger people, with daily disposables being particularly popular.
• The rise of colored contacts: Cosmetic colored contacts have also become widespread.
• Strain on the cornea: Lenses with higher oxygen permeability are gentler on the eyes.
• Most trouble comes from "how" they're used: Many issues are said to stem from overuse or insufficient care.

Tips for Reviewing Your Contact Lens Habits

• Check the wearing time and replacement schedule of the lenses you're currently using.
• Replace your lens case and care products to maintain good hygiene.
• Be mindful of blinking and humidity to combat dry eyes.
• Visit an eye doctor to check your vision and corneal condition, and choose lenses that suit you.

A Small Lens That Protects Your Eyes Is a Quiet Partner in Daily Comfort

September 10th's "Contact Lens Day" is a chance to reconsider the "eye health" behind the convenience of contact lenses. Keeping up good habits ensures a comfortable and safe visual life going forward.