Awọn itọsi alafo
With a segment in the lower area of the lens, a bifocal lens displays two different dioptric powers, which provide the patients with clear near and distant vision.
Awọn afiwera
Laibikita idi ti o nilo iwe ilana oogun fun atunse iran, awọn bikocals gbogbo iṣẹ ni ọna kanna. Apa kekere ni apa isalẹ ti lẹnsi ni agbara ti a nilo lati ṣe atunṣe iran ti o sunmọ. Awọn iyoku awọn lẹnsi nigbagbogbo jẹ fun iran jijin rẹ. Apapin tẹẹrẹ ti yato si atunse iran le jẹ ọkan ninu awọn apẹrẹ pupọ.
Kọ ifiranṣẹ rẹ nibi ki o firanṣẹ si wa
