Itchy inner corners of the eyes are generally caused by medial or lateral canthal inflammation, mainly due to allergies or allergic rhinitis, or physical and chemical irritants. It is not conjunctivitis or keratitis. Conjunctivitis is characterized by the whitening of the eyeball turning red, photophobia, tearing, increased secretion, foreign body sensation, and burning sensation; Keratitis involves diseases of the pupil, primarily based on conjunctivitis but with more pronounced photophobia, mainly affecting vision severely. If keratitis is not treated actively, it can lead to a severe decline in vision, even blindness. Therefore, for these conditions, it is advised to first visit an ophthalmology outpatient clinic for a thorough examination and active treatment.