Can conjunctivitis make you go blind?

In most cases, conjunctivitis is a mild and self-limiting condition that does not lead to blindness. However, in severe cases or if left untreated, some types of conjunctivitis may cause complications that can potentially lead to vision loss.

1. Corneal Ulcers: Severe bacterial or viral conjunctivitis can cause inflammation of the cornea (keratitis), leading to the formation of corneal ulcers. If left untreated, corneal ulcers can perforate the cornea, causing scarring and vision impairment.

2. Trachoma: A chronic form of conjunctivitis caused by the bacterium Chlamydia trachomatis, trachoma is prevalent in developing countries. Repeated episodes of trachoma can lead to scarring of the cornea, causing impaired vision and even blindness.

3. Gonorrheal Conjunctivitis: This form of conjunctivitis is caused by the bacterium Neisseria gonorrhea and is highly contagious. If not treated promptly, gonorrheal conjunctivitis can lead to severe inflammation and scarring of the cornea, resulting in vision loss.

4. Herpes Zoster Ophthalmicus: A viral infection that affects the eye and the surrounding skin, herpes zoster ophthalmicus can lead to severe conjunctivitis and inflammation of the cornea. In severe cases, it can cause scarring of the cornea and permanent vision impairment.

5. Endophthalmitis: A rare but severe complication, endophthalmitis is an infection of the internal structures of the eye, including the vitreous and aqueous humors. It can occur as a complication of severe conjunctivitis and can lead to significant vision loss if not promptly treated.

It is important to note that these severe complications of conjunctivitis are relatively uncommon and can usually be prevented by seeking prompt medical attention and adhering to the prescribed treatment. Proper hygiene, avoiding sharing personal items, and practicing safe sex can also help reduce the risk of contracting infectious conjunctivitis.