<unk> , or neonatal conjunctivitis, is a form of conjunctivitis that can be contracted by newborns during delivery. The baby can contract the disease if the eyes are contaminated during passage through the birth canal from a mother infected with either Neisseria gonorrhea, Chlamydia trachomatis, or Herpes simplex virus. It can also be caused by bacteria, viruses, and chemical irritants, such as silver nitrate, which is no longer used frequently.<unk>  due to gonococci (Neisseria gonorrhoeae) typically manifests in the first 5 days of life and is associated with marked bilateral purulent discharge. In contrast, conjunctivitis secondary to infection with chlamydia (Chlamydia trachomatis) produces conjunctivitis after day 3 of life, but may occur up to 2 weeks after delivery. Babies infected with chlamydia may develop pneumonitis at a later stage (between 2 weeks and 19 weeks after delivery). Herpetic keratoconjunctivitis is a rare cause of neonatal conjunctivitis. It usually occurs within the first 2 weeks after birth. If left untreated, HSV conjunctivitis can cause corneal scarring and ulceration. Additionally, disseminated HSV infection can result in encephalitis.
Prompt diagnosis is necessary in order to establish proper treatment and minimizing potential serious complications. Common laboratory studies for neonatal conjunctivitis may include Gram stain, cultures, Giemsa stain, and polymerase chain reaction (PCR) of conjunctival scrapings.
Effective measures for the prevention of<unk>  include ocular prophylaxis with 0.5% Erythromycin ointment or 1% Tetracycline hydrochloride, and 
educating pregnant women on the importance of regular examinations to detect and treat sexually transmitted infections (STIs/STDs).
Empiric antibiotic treatment for neonatal conjunctivitis includes Erythromycin<unk>  ointment and Ceftriaxone IV or IM. Additionally, systemic treatment is indicated in cases of chlamydial and Herpes simplex conjunctivitis to avoid systemic complications.
Ophthalmia neonatorum
Gonochorism
Erythroplasia of Queyrat
Hydrops fetalis
White piedra
Pachyonychia congenita
Mind's eye
Black eye