Have you seen any other symptoms ? Labored breathing, mucous coming from the mouth or nose, is there any odour around the head area ?
You need to irrigate the eye ( from the beak out , so that any debris flushes away from the bird ) . Saline in a small 3-5 ml syringe ( no needle ) makes it easy to flush.
Apply some antibiotic drops at least once a day . Chlorsig human drops will do if not some terramycin spray or ointment is just as effective. A course of tylan for at least 7 days would also be my advice.
The eye needs daily treatment.