<prompt> Arlts line is seen in: March 2007, March 2013Ophthalmia neonarorumTrachomaAngular conjunctivitisVernal catarrh  <response>: Ans. B: Trachoma A purulent discharge strongly suggests bacterial cause, unless there is known exposure to toxins. Infection with Neisseria gonorrhoeae should be suspected if the discharge is paicularly thick and copious. Itching rubbing eyes is the hallmark symptom of allergic conjunctivitis. Other symptoms include past history of eczema, or asthma. A diffuse, less injected conjunctivitis looking pink rather than red suggests a viral cause, especially if numerous follicles are present on the lower tarsal conjunctiva on biomicroscopy. Scarring of the tarsal conjunctiva suggests trachoma, especially if seen in endemic areas, if the scarring is linear von Arlts line, or if there is also corneal vascularisation. Other symptoms including pain, blurring of vision and photophobia should not be prominent in conjunctivitis. 