title: The importance of employing power analysis and the accurate statistical method when designing a study.
authors.affiliation: Department of Ophthalmology, Faculty of Medicine, Hitit University, Çorum, Turkey. drilkerkocamis@gmail.com.
authors.forename: Sücattin İlker
authors.initials: Sİ
authors.lastname: Kocamış
authors.affiliation: Department of Ophthalmology, Numune Training and Research Hospital, Ankara, Turkey.
authors.forename: Şule Berk
authors.initials: ŞB
authors.lastname: Ergun