eye optometry trial lens icon. correct vision test sign. eye trial lens . analogical eye trial frame logo. flat style

exam clinic doctor eye lens medical optical test vision health instrument optometry care examination patient trial diagnostic optician eyeglass check diagnosis glasses tool frame looking ophthalmology optometrist sight astigmatism ophthalmologist equipment chart measure reading scale visual eyesight myopia adjustable sign vector measurement mechanical medicine professional store correction device eyewear icon correct symbol analogical logo flat style icon sign symbol logo