Congress of the American Society of Cataract and Refractive Surgery, Boston, April 2024

39^th Congress of the Asia-Pacific Academy of Ophthalmology, Bali, Indonesia, February. 2024

16^th Asia-Pacific Vitreo-Retina Society Congress, Hong Kong, December 2023

8^th Asia Pacific Tele-Ophthalmology Society, Pattaya, Thailand, December. 2023

41^st Congress of the European Society of Cataract and Refractive Surgery, Vienna, Sep. 2023

38^th Congress of the Asia-Pacific Academy of Ophthalmology, Bangkok, Feb. 2023

15^th Asia-Pacific Vitreo-Retina Society Congress, Taipei, Nov. 2022

7^th Asia Pacific Tele-Ophthalmology Society, Shenyang, China, Sep. 2022

26^th Winter Congress of the European Society of Cataract and Refractive Surgery, Held Virtually, Feb. 2022

6^th Asia Pacific Tele-Ophthalmology Society, Held Virtually, Aug. 2021

Congress of the American Society of Cataract and Refractive Surgery, Las Vegas, Nevada, May 2021

Annual Meeting of American Academy of Ophthalmology (AAO), Held Virtually, Nov. 2020

38^th Congress of the European Society of Cataract and Refractive Surgery, Held Virtually, Oct.2020

World Ophthalmology Congress, South Africa, June. 2020

Congress of the American Society of Cataract and Refractive Surgery, Held Virtually, May. 2020

24^th Winter Congress of the European Society of Cataract and Refractive Surgery, Marrakesh, Feb.2020

1^th Asia Pacific Ocular Imaging Society Meeting, Singapore, Jan. 2020

34^th Congress of the Asia-Pacific Academy of Ophthalmology, Bangkok, March. 2019

36^th Congress of the European Society of Cataract and Refractive Surgery, London, Sep.2018

Congress of the American Society of Cataract and Refractive Surgery, Washington DC, April.2018

Congress of the American Society of Cataract and Refractive Surgery, Los Angeles, May.2017

34^th Congress of the European Society of Cataract and Refractive Surgery, London, Sep.2016

Congress of the American Society of Cataract and Refractive Surgery, New Orleans, May. 2016

33^rd Congress of the European Society of Cataract and Refractive Surgery, Barcelona, Sep. 2015

Annual Cornea Day (Organized by ESCRS and EuCornea), Feb. 2015. 5^th EUCornea Congress, London, Sep. 2014

32^th Congress of the European Society of Cataract and Refractive Surgery, London, Sep. 2014

World Ophthalmology Congress, Tokyo, April. 2014

1^th Iranian Congress of Spiritual Safety 2013, Shahid Beheshti University of Medical Sciences, Tehran, Dec. 2014

31^th Congress of the European Society of Cataract and Refractive Surgery, Amsterdam, Oct. 2013

30^th Congress of the European Society of Cataract and Refractive Surgery, Milan, September, 2012

29^th Congress of the European Society of Cataract and Refractive Surgery, Vienna, Sep. 2011

1^th to 26^th Iranian Congress of Ophthalmology, Tehran, 1990-2016

27^th Congress of the European Society of Cataract and Refractive Surgery, Barcelona, Sep. 2009

25^th Congress of the European Society of Cataract and Refractive Surgery, Stockholm, Sep. 2007

24^th Congress of the European Society of Cataract and Refractive Surgery, London, Sep. 2006

23^th Congress of the European Society of Cataract and Refractive Surgery, Lisbon, Sep. 2005

22^th Congress of the European Society of Cataract and Refractive Surgery, Paris, France, Sep. 2004

6^th Annual NIDEK International Excimer Laser Symposium, Rio De Janeiro, Brazil, Dec. 2000