Final answer:
The term for identical vision in the two eyes is 'conjugate gaze,' which refers to both eyes moving in sync to allow for binocular vision. Accommodation allows for clear vision from close objects to infinity, but presbyopia can hinder the ability to focus on close items.
Step-by-step explanation:
If 'IS' means equal, the term that could best mean identical vision in the two eyes is conjugate gaze. This term describes the coordinated movement of the two eyes simultaneously in the same direction. It's crucial for achieving binocular vision, where both eyes work together to form a single visual field. Convergence is another related term that refers to the eyes' movement so that they point at the same point in space, a process that becomes more pronounced for stimuli that are closer to us.
Accommodation refers to the ability of the eye to focus on close objects by changing the shape of the lens. With a normal accommodation of 8.00%, it is presumed that clear vision is possible for objects at distances ranging from 25 cm to infinity. In cases such as presbyopia, the lens of the eye becomes progressively unable to focus on objects close to the viewer, indicating a decline in accommodative ability.