What causes instant blindness and recovery?

2

. Orthostatic hypotension

may be related to hypovolemia

, adverse drug reactions, secondary central nervous system tumors, etc. Orthostatic hypotension may be related to transient ischemia of the brain and peripheral blood vessels during

acute onset of orthostatic hypotension, which may be manifested as instant blindness and recovery of the eyes.

3. Dissociation

disorder may be related to physical factors, social psychological factors, etc. Patients with acute onset of separation disorder may feel instant blindness of the eyes, and return to normal vision when the spirit returns to normal.