title: [Preference and trends of treatment for diabetic retinopathy in Korea and Japan].
abstract: OBJECTIVE
  The difference in preferences and trends of treatment in each country are important to plan an international interventional clinical study in eastern Asia. Accordingly, we compared the preferences and trends in treatment of diabetic retinopathy in Korea and Japan.
  
  
  METHODS
  We obtained answers to questionnaires (49 questions) from 91 ophthalmologists of the Korean Retina Society and 120 ophthalmologists of the Japanese Society of Ophthalmic Diabetology in June/July, 2012. Some of the questions were modified from The Preferences and Trends (PAT) survey of American Society of Retina Specialists.
  
  
  RESULTS
  The first choice for a patient with vision of 20/25, clinically significant diabetic macular edema and clear evidence of intraretinal fluid on spectral domain OCT were intravitreal anti-vascular endothelial growth factor agent (31%) in Korea and sub-Tenon steroid (22%) in Japan. The management for a patient with refractory neovascular glaucoma who has closed angle and persistent intraocular pressure elevation (>50 mmHg) were glaucoma drainage implant surgery (74%) in Korea and trabeculectomy (57%) in Japan.
  
  
  CONCLUSIONS
  There were differences in preferences and trends of treatment for diabetic retinopathy between Korea and Japan. The differences need to be considered when planning international clinical studies.
authors.affiliation: Department of Ophthalmology and Visual Science, Nagoya City University Graduate School of Medical Sciences, Japan.
authors.forename: Miho
authors.initials: M
authors.lastname: Nozaki
authors.forename: Kiyoshi
authors.initials: K
authors.lastname: Suzuma
authors.forename: Makoto
authors.initials: M
authors.lastname: Inoue
authors.forename: Ryo
authors.initials: R
authors.lastname: Kawasaki
authors.forename: Teruyo
authors.initials: T
authors.lastname: Kida
authors.forename: Yoshihiro
authors.initials: Y
authors.lastname: Takamura
authors.forename: Taiji
authors.initials: T
authors.lastname: Nagaoka
authors.forename: Tomoaki
authors.initials: T
authors.lastname: Murakami
authors.forename: Shigeo
authors.initials: S
authors.lastname: Yoshida
mesh_terms: D003930:Diabetic Retinopathy / Q000628:therapy*; D006801:Humans; D007564:Japan; D007723:Korea; D017075:Laser Coagulation; D008269:Macular Edema / Q000628:therapy; D011795:Surveys and Questionnaires