Mugihe tugenda dusaza, lens, sisitemu yibanda kumaso yacu, itangira gukomera buhoro buhoro no gutakaza ubuhanga bwayo, kandi imbaraga zayo zo guhinduka zitangira gucika intege buhoro buhoro, biganisha kubintu bisanzwe bya fiyologiki: presbyopiya. Niba ingingo yegereye irenze santimetero 30, na obj ...
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