Distribution Analysis of Refraction Defects in Prescriptions in Terms of Opticians: the Case of Karaman Province

The aim of this study is to analyze and evaluate refraction errors in prescriptions written in foundation and state hospitals in Karaman province. 213 people who applied to an ophthalmologist in the province of Karaman and were given prescriptions were included in the study. Of the 213 people included in the study; 126 (59.15%) are women, 87 (40.85%) are men. Near and far eyeglasses data on prescriptions were divided into 7 groups as simple myopia, simple hyperopia, simple myopic astigmatism, simple hyperopia astigmatism, composite myopic astigmatism, compound hyperopia astigmatism, and mixed astigmatism. In the near-eyeglass right glass refraction defects analysis in the research; simple hypermetropia was the most common with 22.06%, while the least common simple myopic astigmatism was detected with 0.94%. In the near eyeglass left eyeglass refraction defects analysis; while mixed astigmatism was the most common with 22.53%, it was determined that it was the least seen simple myopic astigmatism with 0.47%. In the far eyeglass right glass refraction defects analysis; compound myopic astigmatism was the most common with 30.98%, and the least common was simple hypermetropic astigmatism with 2.35%. In the far eyeglass left eyeglass refraction defects analysis; compound myopic astigmatism was the most common with 29.11%, while the least common was simple hypermetropic astigmatism with 2.35%. The research is important due to it is the first study to examine the refractive error distribution in Karaman.