A Comprehensive Guide to Eye Tests Conducted During an Eye

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Merivale Vision Care

• A Comprehensive Guide to Eye Tests Conducted
  During an Eye

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• The eyes are the windows through which one sees
  the world. From the moment you open your eyes in
  the morning to the moment you go back to sleep,
  your eyes are constantly working. That is why it
  becomes essential to maintain good eye health no
  matter what.

• Technology has been a boon to society, but on a
  downside, it has emerged as a real culprit when
  it comes to deteriorating eye health. As more and
  more people are indulging in using mobile phones
  and watching television from a near distance, eye
  health risk is increasing. If you are too
  experiencing issues with your eyes or the
  eyesight, an eye exam will come in handy.

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Here are some basic tests that would help detect
any issue that has been bothering your eye.

• Visual Acuity Test
• The most basic of all is the visual acuity test
  that is performed to measure the sharpness of
  your eyesight. In simpler words, the visual
  acuity test helps in identifying the distance
  from which you can maintain perfect vision. If
  you have been experiencing a vision issue lately,
  conducting a visual acuity test should be a
  priority.
• This eye test is also safe for children, and it
  is essential to get through a visual acuity test
  as it should be a priority to detect eyesight
  issues in time. The basic type of visual acuity
  test includes a Snellen test.
• This includes a chart of letters or symbols that
  you have to look at from different distances. The
  analysis, in turn, would help detect how good
  your eyesight is and from what distance you can
  see perfectly.

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Retinoscopy

• When the eye doctor gets to know that you require
  an eyeglass prescription, a retinoscopy test
  helps doctors identify the strength of the lens
  you require. Irrespective of you having near or
  farsightedness a retinoscopy test will help
  detect the intensity of refraction error in the
  eyes. The doctor would need a retinoscope to
  conduct the eye exam.
• A red light would be focused on the eyes retina
  and, in turn, the light would reflect back. The
  light would be moved across the pupil, and the
  movement of the reflex would be noticed. Then,
  you would be made to wear a device called a
  phoropter, and a random lens would be placed in
  it.
• A chart would be placed in front of you and you
  would be asked to look at the chart and identify
  with what lens you see the best. No matter what
  the procedure, getting yourself a perfect
  prescription is what really matters.

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Color Blindness Test

• Have you noticed that sometimes you cant
  distinguish between intermingled colors? While
  you may find it mysterious, it is important to
  know that it is more of an eye defect than any
  magic. This condition is known as color
  blindness. And one of the simplest tests is
  conducted to detect this abnormality that does
  not demand much effort.
• In this eye test, different numbered charts would
  be provided to you that may appear to be
  illusionary. These numbers are in dotted form and
  multicolored, which would make it tricky for you
  to recognize the number.

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Autorefractors And Aberrometers

• If you are able to read through hidden numbers
  perfectly, it is likely you are not colorblind.
  If you are wondering what this particular test is
  called, it would be informative to know that it
  is the Ishihara Color Vision Test.

This is a great technological invention that has
made conducting an eye exam an easy task. It uses
a computerized system to know what eyeglass
prescription would suit you best. It is a
revolution in the field of eye exams that have
automated the process and has made it easier and
convenient. An autorefractor is an electronic
device that detects the refraction error
automatically. Whereas an aberrometer is a device
that measures distortions and abnormalities in
the cornea and the eye lens that, in turn,
restricts proper vision. The device accuracy is
based on wavefront technology that analyses the
light rays that pass through the eyes. You
would have to place your chin on the device so
that your head is in a stable position. An image
would flash in front of your eyes as you focus
through the lens provided. As the image moves,
the instrument would consequently measure your
eyesight that reflects perfect results.
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Slit Lamp Test

• When a general eye exam fails to detect the eye
  disease you may be facing, a slit lamp test is
  suggested. The test is also known as
  Biomicroscopy, as a doctor uses a microscope
  like instrument for identifying the underlying
  eye problems. The good part is you do not have to
  prepare for this exam and it can be conducted at
  anytime.
• In this test, an instrument would be placed in
  front of you. Next, you would have to place your
  chin on the space provided so that your chin and
  forehead get a stable place to rest. The eye
  doctor would then put eye drops in your eyes so
  that even the slightest issue comes to light
  easily. The fluid the doctor would use, contains
  a yellow dye known as fluorescein. The doctor
  may use some more drops so that the pupil gets
  dilated.

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A low power-oriented microscope along with a slit
lamp which uses a high-intensity light would be
used. A close observation of your eyes would be
done afterward so that none of the issues go
unnoticed. The slit lamp holds the power to
deploy different filters to get varied views of
the eyes. Be it the front of the eye or the back
every part would be taken into consideration
while undergoing this test.
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Wrapping Up

• Looking at the five basic eye exams conducted by
  an eye doctor, you now have a basic understanding
  about the tests. Now you shouldnt feel naïve or
  hesitant when moving on with an eye exam. No
  matter what the age, opt for regular eye tests as
  it is the eyes that help you perceive the world
  and offers you the opportunity to enjoy the
  beauty around.

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