Which of the following terms describes the closest point at which an eye can focus on an object? focal point accommodation point near point emmetropia astigmatism
Added by Alicia R.
Close
Step 1
Step 1: The question asks to identify the term that describes the closest point at which an eye can focus on an object. Show more…
Show all steps
Your feedback will help us improve your experience
Deepanshu Kumar and 69 other Physics 101 Mechanics educators are ready to help you.
Ask a new question
Labs
Want to see this concept in action?
Explore this concept interactively to see how it behaves as you change inputs.
Key Concepts
Recommended Videos
A measurement indicates that a patient cannot clearly see any object that lies closer than 52.2 cm to the patient's eye. (a) Which of the following terms best describes this distance? focal length near point far point magnification (b) The patient needs to be able to clearly see objects that are just 23.0 cm distant. A contact lens is called for. What focal length (in cm) should this lens have? Assume the lens can be modeled as an ideal thin lens, which lies adjacent to the eye. (c) What is the power, P, of the contact lens (in diopters)?
Deepanshu K.
Change in lens shape to focus on near objects (<20 ft or 6 m): A. Accommodation - closest point on which an individual can focus clearly. B. Astigmatism - normal vision; no accommodation needed for focusing on far objects. C. Convergence - good far vision; near objects appear blurry; "farsightedness". D. Emmetropia - good near vision; far objects appear blurry; "nearsightedness". E. Glaucoma - partially blurred vision due to unequal curvature of cornea and/or lens. F. Hyperopia - inability to focus on near objects due to poor elasticity of lens. G. Myopia - medial turning of eyes while viewing close objects. H. Near point - excessive fluid pressure in the eye may damage retina & optic nerve. I. Presbyopia - "cross-eyed" weak muscle allows eye to rotate medially or laterally. J. Strabismus.
Madhur L.
Place a single word into each sentence to make it correct. is when the eye is focused on an object more than 20 feet away and light rays focus on the retina without effort. iris retina The eye will automatically focus on distant things unless the is shifted elsewhere. Myopia This response is the adjustment to close range vision. near convergence This response depends on , constriction of the pupil, and lens accommodation. Emmetropia focus These three factors aid in focusing the image onto the
Sri K.
Recommended Textbooks
University Physics with Modern Physics
Physics: Principles with Applications
Fundamentals of Physics
Transcript
18,000,000+
Students on Numerade
Trusted by students at 8,000+ universities
Watch the video solution with this free unlock.
EMAIL
PASSWORD