If you describe someone's eyes as glazed, you mean that their expression is dull or dreamy, usually because they are tired or are having difficulty concentrating on something. 呆滞的
adjective [原级]光滑的;像玻璃的;上过釉的;呆滞无神的
Doctors with glazed eyes sat chain-smoking in front of a television set. 目光呆滞的医生们坐在电视机前一根接一根地抽着烟。