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Visual impairment is the most common clinical presentation of the pituitary tumour. Visual recovery usually occurs within days to months after surgical removal of the tumor. We report a case of a giant pituitary tumour where preoperatively there was severe visual impairment. Postoperatively he recovered vision in one eye within three months and the other eye remained completely blind for 5 years, then it began to recover very slowly to a serviceable vision in the next six years.