Thank you for your query at DoctorSpring.com
I understand your concern.
ATP is the main source of energy in the eye, however, it is very difficult to express it in a percentage form, since it keeps varying with the various eye movements, and based on how much it is used.
It is not possible to express it in a percentage form. Can you kindly mention what kind of information are you exactly looking for.
Patient replied :
Do I understand that the eye uses ATP only ?
Yes, ATP is the energy form used by eyes to perceive light and do other movements.