noun
sore eyes; inflamed eyes
Refers to eyes that are sore, inflamed, or ulcerated, often from infection or irritation.
花粉症でただれ目になってしまった。
My eyes got sore from hay fever.
ただれ目をこすらないでください。
Please don't rub your sore eyes.
Conjunctivitis, a medical term for inflammation of the eye's outer membrane; ただれ目 is a more general, everyday term for sore or inflamed eyes.
Compound of ただれ (from verb 爛れる 'to become sore/inflamed') and 目 'eye'.