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Optics & Refraction

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Read more about the article ADVANCES IN THE TREATMENT OF PRESBYOPIA

ADVANCES IN THE TREATMENT OF PRESBYOPIA

  • Post author:Joseph Nnagha
  • Post published:March 10, 2023
  • Post category:Optics & Refraction
  • Post comments:0 Comments

Presbyopia affects 1.8 billion people worldwide, according to the World Health Organization (WHO). The American Academy of Ophthalmology (AAO) describes it as a common age-related decline in the eye’s near…

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Read more about the article Procedure of Fundus Examination

Procedure of Fundus Examination

  • Post author:Megha Sinhababu
  • Post published:December 27, 2022
  • Post category:Optics & Refraction
  • Post comments:0 Comments

An exam that uses a magnifying lens and a light to check the posterior segment of the eye, including the retina and optic nerve is called Fundus Examination. It is…

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RETINOSCOPY

RETINOSCOPY

  • Post author:Ritika Das
  • Post published:July 27, 2022
  • Post category:Optics & Refraction
  • Post comments:2 Comments

Retinoscopy is also known as skiascopy, shadow test or pupilloscopy or koreoscopy. It was introduced by Bowman in 1859. It is an objective method of finding out the error of…

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Autorefractometry

Autorefractometry

  • Post author:Sritama Guchhait
  • Post published:July 26, 2022
  • Post category:Optics & Refraction
  • Post comments:0 Comments

What is the meaning of Refractometry ? It is the estimation of refractive error with a machine called refractometer or optometer. Autorefractometry An autorefractor is an alternative method of finding…

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MODERN REFRACTOMETERS

MODERN REFRACTOMETERS

  • Post author:Riju Ghosh
  • Post published:July 25, 2022
  • Post category:Optics & Refraction
  • Post comments:0 Comments

With the rapid development in electronics and micro computers a number of innovative methods & instrument for automated clinical refraction have appeared since 1960. Refractometer is used to determine the…

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STREAK RETINOSCOPY

STREAK RETINOSCOPY

  • Post author:Shilpi Mondal
  • Post published:July 18, 2022
  • Post category:Optics & Refraction
  • Post comments:0 Comments

WHAT IS RETINOSCOPY RETINOSOPY also called as skiascopy or shadow test is an objective method of finding out the error of refraction by the method of neutralization. PRINCIPAL RETINOSCOPY is…

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THE OPTICS OF MYOPIA

The Optics of Myopia

  • Post author:Sritama Guchhait
  • Post published:May 20, 2022
  • Post category:Optics & Refraction
  • Post comments:0 Comments

Before we discuss the optics of myopia we should acknowledge the laypersons terms for myopia. Myopia means I shut the eye; the term was introduced from the habit of half…

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Read more about the article Light

Light

  • Post author:Arsalan Mudassar
  • Post published:December 7, 2021
  • Post category:Optics & Refraction
  • Post comments:4 Comments

This is a fact that we cannot see any object in a perfectly dark room conclusively establishes the truth that light is necessary for the purpose of vision. Nature has…

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Read more about the article Application of Polarized light

Application of Polarized light

  • Post author:Sanglap Ghosh
  • Post published:November 22, 2021
  • Post category:Optics & Refraction
  • Post comments:0 Comments

Light is a form of energy or a composed of particles of photons. The photon Particles are actually massless bundles of concentrated electro magnetic energy that are travels in a…

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Read more about the article Transmission and Absorption

Transmission and Absorption

  • Post author:Riyanka Mondal
  • Post published:November 21, 2021
  • Post category:Optics & Refraction
  • Post comments:0 Comments

The transmission of Light is defined as the moving of the electromagnetic waves through a material. Visible light is the cause we are able to see anything at all. Transmission…

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