ophthalmology
🇬🇧/ˌɒfθælˈmɒlədʒi; ˌɒpθælˈmɒlədʒi/ 🇺🇸/ˌɑːfθəˈmɑːlədʒi; ˌɑːpθəˈmɑːlədʒi/
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Ophthalmology is branch of medicine concerned with people's eyes and the problems that affect them. 眼科学