Bifocal: correction is given on the upper half of the lenses for distance and the lower half of the lenses for reading. Bunları da oku etibba E-Bülten şahsi Verilerin İşlenmesi: yiyecek ustalıklemleri https://harmonyiywj842319.blogripley.com/29538072/the-ultimate-guide-to-hipermetrop-nedir