Edwin Robinson was claimed to have regained his sight after being struck by lightning. Can this really happen?
Can lightning restore sight?
Yes, if the cause of the blindness is "hysterical"
If you have a detached retina, cataracts, nerve damage, missing occipital lobe, eyeball trauma or other causes, lightning may be unlikely to effect a cure.
"hysterical blindness" is an old term for what is now called "conversion disorder".
A typical description is
Conversion disorder is a mental health condition in which a person has blindness, paralysis, or other nervous system (neurologic) symptoms that cannot be explained by medical evaluation.
Conversion disorder symptoms may occur because of a psychological conflict.
Symptoms usually begin suddenly after a stressful experience. People are at risk of conversion disorder if they also have a medical illness, or the other mental health problem of dissociative disorder (escape from reality that is not on purpose) or a personality disorder (inability to manage feelings and behaviors that are expected in certain social situations).
Persons who have conversion disorder are not making up their symptoms (malingering).
Some of the information contained in this post requires additional references. Please edit to add citations to reliable sources that support the assertions made here. Unsourced material may be disputed or deleted.