Possible Clues:

• One examines pupils originally on Cranbrook's usual register
• I say, doctor, if one can't see, one needs to see one of them?
• I say doctor, if one can't see, one needs to see one of them?
• Optometrist
• One working with seers is involved in old school of belief
• One might look you in the eye
• Is clout appropriate for treating the 2?
• Man of vision cuts oil supply
• Person of vision is found within old religious group
• O, see you with the items that may help you to see