OCR Text |
Show ! Dangar In Single Eyeglaia. I Never uhh a tnt;le eyt-Kluaa unleaa ! there U a difference lo power between I the two eyea and the glaaa U uaed to 1 i brum the power of tho defective eye 1 up to that of the other. The difference differ-ence In power la known aa axtlg-matUm, axtlg-matUm, ami inch an eyi'iitima would have to be recommended, after careful eight teallnK. by a profeanlonnl optician opti-cian or ocultat. When the eyei are equal in power, an eyeglaaa aeta up Inequality, equal In effect to real autl-matttiin. autl-matttiin. Of courae, that la not the caie when the (laaa le quite Hat; but even then lte uae la bad, for It teachea the uaer to look chiefly throuxb one aye. Also, there la the minor con Id oration that It cauaea permanent .rlnklea of the akin. |