From Longman Dictionary of Contemporary Englishbloodshotblood‧shot /ˈblʌdʃɒt $ -ʃɑːt/ adjective MIif your eyes are bloodshot, the parts that are normally white are red or pink
Examples from the Corpus
bloodshot• He looked unshaven and his eyes were bloodshot.• Her face looked grey, and her eyes were still faintly bloodshot.• Her eyes were bloodshot and confused.• He spun his web and ran there and here in scummy clothes with bloodshot eyeballs.• A yellow face, bloodshot eyes, and the feeling of incredible age.• He looked at me suspiciously through bloodshot eyes, then shrugged and let me pass.• They went out into the bloodshot Schiaparelli day. 