Instruments Used in Optometry
by Wang M. Sales Executive
The most common mistake made by general
people is they think an Optometrist and Ophthalmologist are the same people.
However, they are widely different and they have a different set of skills and
An optometrist is an eye doctor who can
diagnose common eye problems like glaucoma, cataracts, etc. However, they
cannot perform eye surgeries to treat these conditions. Mostly they deal with
examining common visual errors and can correct the refractive problems by
prescribing powered glasses or contact lenses. They have an instrument table
optometry for performing these diagnoses.
Generally, the optometrist will refer you
to a good ophthalmologist if you need some eye surgery or special diagnoses.
Ophthalmologists are medical doctors and are highly trained for five years
before achieving their degree. They perform more intricate and extensive eye
surgeries and checkups. Thus both of them have different kinds of instruments
to facilitate the examination of the patients but some instruments may be used
The ophthalmic diagnostic equipment that is used by both optometrists and
There are many fluids inside a person’s eye and if the pressure
fluctuates then it can cause damage to the eyeballs or nerves in the eyes. The
ophthalmologist uses a tonometer to measure these pressure conditions and if a
person is in immediate danger of having eye damage. The condition created by
high pressure in the eye is called glaucoma and it is mostly found in older
The instrument table optometry is a basic table that has been modified
to hold all the other instruments needed by the eye specialist. Some instrument
tables come with some attached equipment also.
This is one of the most important pieces of equipment needed to
measure the error in the eyes and it generally leads to prescribing glasses to
the patient. The refractive error is measured by the high-power Phoropter, and
the optometrist can deduce the amount of error and the type and power of
glasses needed to correct it.
In certain special cases, the patient cannot give proper feedback to
the doctor when using the Phoropter. In these situations, the doctor uses a
Retinoscope to measure refractive errors. A highly focused light shines on the
eyes of the patient, and the measurements are recorded by the machine. The
doctor can find the error by seeing the output of the Retinoscope.
This chart is one of the most common ophthalmic diagnostic equipment and every optometrist and
ophthalmologist has one. It consists of a lot of written alphabets in a chart.
The alphabets have a diminishing size and the patient has to correctly read the
alphabets from the chart.
The author, Wang, has a lot of
information about all kinds of instrument table optometry and can correctly help other people in choosing one for them.
Moreover, he is also an expert in all types of ophthalmic
diagnostic equipment that is used by
various optometrists and ophthalmologists.
Created on Mar 23rd 2021 01:55. Viewed 77 times.