Goryokaku Tower is usually illuminated in white. For certain events, we support the initiative by lighting up the tower in the event’s special color.

　
Event Name: Glaucoma Awareness Campaign “Light Up in Green”
Date: March 9 (Mon) – 10 (Tue), 2026
Time: Sunset – 21:00
　
In conjunction with World Glaucoma Week 2026, Goryokaku Tower will be illuminated in green as part of the glaucoma awareness campaign “Light Up in Green.”
　
For more information:
http://www.ryokunaisho.jp/infomation/wgwingreen.html
　
Organizer: Japan Glaucoma Society / Light Up in Green Executive Committee
Co-organizer: Hakodate Ophthalmologists Association
Contact: gs.wgw2@gmail.com (Secretariat)