External ophthalmopathy refers to a condition that affects the external tissues of the eye, including the eyelids, conjunctiva, and other surrounding tissues. Antonyms for external ophthalmopathy would be conditions that affect the internal tissues of the eye, such as the retina, optic nerve, and vitreous humor. Some examples of these conditions include retinal detachment, diabetic retinopathy, glaucoma, and macular degeneration. Unlike external ophthalmopathy, which may cause visible symptoms like redness, swelling, and irritation, these conditions can be asymptomatic in their early stages and may only be detected through routine eye exams. Early diagnosis and treatment are crucial in preventing vision loss and maintaining eye health.