NEARPOINT Meaning and
Definition
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Nearpoint is a term used in ophthalmology to define the closest distance at which an individual can clearly focus on an object. It refers to the point at which the eyes can see an object most distinctly without causing discomfort or strain. It is often associated with the ability to focus on near objects, such as reading or looking at objects up close.
In optometry, nearpoint is measured by determining the closest point at which the eyes can accurately focus on an object with normal visual acuity. This measurement is crucial in determining a person's nearsightedness, farsightedness, or presbyopia. It is typically evaluated by an eye care professional through visual acuity tests, using various charts, and assessing the ability to read fine print at a comfortable distance. Nearpoint is expressed in terms of the distance in meters or centimeters from the eye, and it varies depending on individual factors like age, eye health, and any existing eye conditions.
The nearpoint is directly related to the accommodation of the eye, which is the ability of the lens to change shape in order to focus on nearer or farther objects. As people age, their nearpoint tends to move farther away due to the natural loss of accommodation, leading to a common condition known as presbyopia, where reading glasses or bifocals are needed to focus on close objects.
Common Misspellings for NEARPOINT
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Etymology of NEARPOINT
The word "nearpoint" is a compound word consisting of "near" and "point".
The term "near" originated from the Old English word "neah", which means "close" or "nigh". It has been used in English since the 9th century.
The word "point" has a Latin origin, derived from the Latin word "punctum" which means "a prick" or "a dot". It entered the English language in the 14th century.
When these two words are combined, "near" refers to something that is close or in proximity, and "point" refers to a specific location or moment. In the context of vision and ophthalmology, "nearpoint" typically refers to the nearest point at which an individual can focus clearly on an object.
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