accomodation
Source: http://www.anatomyandphysiologyquiz.com
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The inability to focus well on close objects is known as presbyopia. This is a common condition that occurs as people age, usually around the age of 40, resulting in difficulties with near vision tasks such as reading or using a smartphone. Presbyopia is typically addressed by wearing reading glasses or contact lenses.
This condition is called myopia. It results in the inability to see distant objects clearly while being able to see nearby objects clearly.
Forces act on all objects with mass. This includes everyday objects like books, cars, and furniture, as well as celestial objects like planets and stars. Forces can cause objects to move, accelerate, deform, or rotate.
Some objects that do not reflect light well are black holes, charcoal, and asphalt. These objects absorb light rather than reflecting it, which is why they appear dark.
Objects that are matte or rough in texture, such as a piece of cloth or a rough stone, typically do not reflect light well and therefore do not produce clear reflections. Other objects that are translucent or absorb light rather than reflecting it, like a sponge or a black hole, also do not reflect things well.
Spherochromatism, also known as color fringing, is an optical phenomenon that causes different wavelengths of light to focus at slightly different points, resulting in color fringing on the edges of objects in an image. This can occur in lenses that are not well-corrected for chromatic aberration, particularly at wide apertures.