Well, yes, it is kind of contagious, so when you suffer from it, you need to be careful about it. Generally speaking, when suffer it, some other symptoms, such as photophobia, or extreme light sensitivity, blurred vision and pain in the eye develop. Also, the eyelid becomes swollen and scarred, and the eyelashes turn inward, irritating and scratching the cornea, the covering of the front of the eye. In some serious cases, partial or complete blindness may be possible too. Because it is contagious, patients should just take more care of their eyes, so that it will not transmit to others. By the way, chlamydia eye infections are treated with antibiotics.
