Foundation Day 4th May - 1948
1st DOS Constitution - 1948
DOS Affiliation to AIOS - 1976
DOS Insignia designed - 1977
Bodh Raj Memorial running Trophy as 1st Academic award - 1976
DOS Bulletin – Now DOS Times - 1986
DOS Registration with Registrar Society - 1987
1st Mid-term Conference - 1987
VISICAN as quarterly Journal of DOS - 1993
Delhi Journal of Ophthalmology (DJO) - 1997
DOS entered cyberspace in - 1998
DOS Golden Jubilee Celebration - 1998
DJO Indexing process begins - 2010