Director's Message

Welcome to the COS!

I love to describe that we as ophthalmological professionals do on a constant basis. We learn about heath professionals, action for our patients, and delivery services for all  – in hopes that our patients and healthcare provider colleagues will benefit from our ophthalmological society. In over 10 years as an ophthalmologist, I continue on a daily journey of joyous discovery of new technology and information related to ophthalmology.

A professional ophthalmologist group established the COS in 2013, and it was approved by the Ministry of Health (MoH) with the mission to provide quality health care service in all facilities in Cambodia and help all ophthalmological professionals to improve their skills and good relation to their patients.

Our dedicated team at COS strives to provide high-quality programming to support you in maintaining your competence, and in providing high-quality patient eye care.

We could not do this without the support of the COS members, and I thank the members for their ongoing commitment and supported COS.

Sincerely yours,


Assistant Prof. Kong Piseth, M.D.

President of COS



Link for Online Abstract Submission: 

- Abstract submission open: September 1, 2020

- Early bird registration open: September 1, 2020

- Abstract submission deadline: October 31, 2020

- Early bird registration deadline: November 30, 2020


What's new?

The long-waited 19th COS Annual Congress will kick off on December 4-5, 2020 in Phnom Penh!




Abstract Submission Opens

September 01, 2020

Early Bird Registration Opens

September 01, 2020

Abstract Submission Deadline

October 31, 2020

Early Brid Registration Deadline

November 30, 2020

On-site Registration

December 4-5. 2020

Opening Ceremony

December 4, 2020

Gala Dinner

December 4, 2020

Election for New COS Committee

December 5, 2020