###Rationale: Also called commotio retinae is oedema at the macula due to blunt trauma .It present as cherry red spot at the macula Refer khurana 6/e 431

###Answer: OPTION B IS CORRECT.
###Question: Berlin's oedema occurs due to
###Options:
A. Penetrating injury to eye
B. Blunt trauma to eye
C. Radiation injury to eye
D. Chemical injury to eye
