Ophthalmological Society of Assam was formed in 10th April 1967, formerly known as All Assam Ophthalmological Society of Assam under the stewardship of Late Prof. L. C. Dutta. It should be mentioned that amongst all the discipline of medicine AAOS was the first professional organization of the state. The first annual conference of the society was held at Guwahati Medical College, which was chaired by Dr. G. S. Guha of Shillong. The first Hony. General Secretary was late Prof. L. C. Dutta. Since inception AAOS is organizing it’s conferences annually. Also since last 8 years AAOS is organizing mid term conferences.Now a days the Annual Conference is of two days duration where two main theme subjects are discussed while the mid term conference isof one-day durationwith only a single theme topic.