Berlins edema is the edema of the retina following blunt injury
. It is also called as commotio retinae. It is usually a self resolving condition and resolves by 4-8 weeks. The main treatment is observation and follow up. Few doctors use oral steroid
drugs. The cases with extensive damage to the retina may lead to other complications like choroidal rupture, choroidal neovascularization
, macular hole
In your case since the vision is not improved even after one year, you need to undergo examination and investigations like optical coherence topography and fundus fluorescien angiography
The treatment mainly depends on the condition you are having.