AAO (American Academy of Ophthalmology)
ASCRS (American Society of Cataract and Refractive Surgery)
ESCRS (European Society of Refractive Surgery and Cararact)
Black Sea Association of Ophthalmology
TOD (Turkish Ophthalmology Society)
Turkish Ophthalmology Cataract and Refractive Surgery Education Unit Derneğiİ

International Scientific Meetings (Invited).
2002 Tbilisi Georgia BSOS I. Meeting-Live Surgical and speakers.
2004 National Congress-Invited Thessalonica Greece.
BSOS II in 2004 in Odessa Ukraine. Meeting-Invited Speaker.
2005 Istanbul ICL Certification Course Tutor.
ICL Certification Course for Trainers in Vienna in 2005

ESCRS (European Society of Cataract & Surgeons refraction) Meetings "in Amsterdam in 2001.
Mixed astigmatism Lasik for the Correction of Bi-Toric.
Following Intracapsular Implantation of Posterior Capsule Opasification ClIncidence of PMMA, Acrylic Intraocular Lenses and Silicon.
Lens Extraction and Intraocular Lens Implantation for High Myopia ear posters.
Implantation of Foldable Acrylic Lenses sulcus in the Presence of Posterior Capsular Inraocular Rupture and Vitreous Loss "ASCRS (American Society of Cataract & Refractive Surgeons) Meetings" in Philadelphia in 2002.
Operating on a Laser and Refractive Surgeon with His Own Microkeratome System Video "in 2005 in Washington DC.
Intacs Roundtable VIII - Experience with Intacs.
Keratoconus: Etiology, Medical, and Surgical Treatments.
Strategies for Nuclear Cataracts White Mature Cataracs and Advenced