<h2>Physics of the Eye Summary</h2>
<ul>
<li>Image formation by the eye is adequately described by the thin lens equations:

<p>\(P=\cfrac{1}{{d}_{\text{o}}}+\cfrac{1}{{d}_{\text{i}}}\phantom{\rule{0.25em}{0ex}}\text{and}\phantom{\rule{0.25em}{0ex}}\cfrac{{h}_{\text{i}}}{{h}_{\text{o}}}=-\cfrac{{d}_{\text{i}}}{{d}_{\text{o}}}=m.\)</p>
</li>
<li>The eye produces a real image on the retina by adjusting its focal length and power in a process called accommodation.</li>
<li>For close vision, the eye is fully accommodated and has its greatest power, whereas for distant vision, it is totally relaxed and has its smallest power.</li>
<li>The loss of the ability to accommodate with age is called presbyopia, which is corrected by the use of a converging lens to add power for close vision.</li>
</ul>
<h2>Glossary</h2>
<h3>accommodation</h3>
<p>the ability of the eye to adjust its focal length is known as accommodation</p>
<h3>presbyopia</h3>
<p>a condition in which the lens of the eye becomes progressively unable to focus on objects close to the viewer</p>
<section data-element-type="conceptual-questions"></section>

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Summarizing Physics of the Eye

Physics is a science discipline concerned with the nature and properties of matter and energy. Physics topics include mechanics, heat, light and radiation, sound, electricity, magnetism, the structure of atoms, and so on.

Physics

Discover the fundamentals of vision and optical devices, including the physics of the eye, vision correction, color vision theories, and the workings of microscopes and telescopes while also learning about aberrations.


Summarizing Physics of the Eye

Physics of the Eye Summary

Glossary

accommodation

presbyopia

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