Question

select the single word into each sentence to make it correct.

1. (click to select) is when the eye is focused on an object more than 20 feet away, and light rays focus on the retina without effort.
2. the eye will automatically focus on distant things unless the (click to select) is shifted elsewhere.
3. this (click to select) response is the adjustment to close - range vision.
4. this response depends on (click to select), constriction of the pupil, and lens accommodation.
5. these three factors aid in focusing the image onto the (click to select).

Explanation:

1. Emmetropia is the normal refractive state of the eye where light rays focus on the retina without effort for distant objects (more than 20 feet away).
2. The eye's focus is what gets shifted. When not shifted (default), it focuses on distant things.
3. The near response (also known as the near triad) is related to close - range vision adjustments.
4. The near response (for close - range vision) depends on convergence (eye movement towards each other), pupil constriction, and lens accommodation.
5. The goal of these factors (convergence, pupil constriction, lens accommodation) is to focus the image onto the retina.

Answer:

1. Emmetropia
2. focus
3. near
4. convergence
5. retina