damaged optic nerve leads to disrupted signaling to brain

optic neuritis glaucoma patient keratitis eyeball ache emotion male endophthalmitis spasm face eye background pain information word caucasian corneal erosion sick text care healthy symptom medicine message health disease concept doctor pressure healthcare ophthalmologist ophthalmology font suffer irritation lesions ophthalmic surgery pseudotumor orbit painful foreign body ill redness phlegmon eyelid diseases contact lenses