During the Shema we cover our eyes. The act implies that one is shielding their sight during the prayer.
If an individual happens to be blind, are they still required to do this as a symbolic action or is it canceled out since the blindness they suffer from is shielding their sight during the Shema?
Is there a difference if the individual is blind (still possesses eyes that don't function) vs an individual who has lost their actual eyes to either an accident or disease?
I only ask because if the gesture implies one is covering their eyes and the person doesn't actually possess eyes, would that somehow change how they say Shema?