“I think it was an actual physical issue possibly happened at his experience with blindness when confronted by Christ.”
Just as hearing improves as eyesight diminishes. One sensory input improves to compensate for the weakness of another.
It was not until my eyesight diminished that I was better able to see with my soul.
The reason we close our eyes when we pray is to diminish the sensory input into the thalamus which is performing the priority sort of sensory input allowed to be processed by the central nervous system. Over 90% of the input normally comes from the optic nerve when we are awake. By diminishing this input we become aware of senses we didn’t even know we have. That is why we must be calm and look within to find God.
My auditory and sensory processing is shot and I mean that in a literal medical sense. By the Grace of GOD I have my physical strength allowing me to care for my wife. But certain auditory or optic stimulation sends me into severe upper Torso spasms {seizures}. That happened 18 years ago. Concentration is difficult at times, balance is poor and I’m well past 50% deaf now LOL... Healing? It ain’t gonna happen. I was born with it but managed to live with it till about age 36 with out much problem..
Before that happened I had an urgency put upon me to read The Bible a lot. Something now for me at is difficult to do. I can read but not chapters at a time. Maybe a few paragraphs. But I retained much of what I read. I have a computer program that helps me find verses much faster that I remeber them but can’t remember chapter and verse..