 
<translate> Yin amfani da kwamfuta ba zai sa idanunka su gaji ba idan kana makaho. Makafi ba sa shan wahala daga wahalar ido. Saboda haka, amsar ƙarshe ita ce gajiyar ido. <eng> Using computer could not cause eye strain if you are blind. Blind person dont suffer from eye strain.
So, the final answer is eye strain. 