Portable Ophthalmic Refractometer to Witness High Demand Due to Its High Accuracy and Emergence of Covid-19
An ophthalmic refractometer is a device used for measuring the refractive error of a patient's vision. This is done by passing an invisible beam of light through a very tiny sample of the patient's eye and capturing the results. The results are shown on a computer screen, and this device is widely used in clinical and lab tests.
Uses
Ophthalmicrefractometer can be used in diagnosis of myopia (nearsightedness), hyperopia
(farsightedness), and astigmatism. In Germany, the prevalence of myopia is
13.3% for the age group 3 to 17 years.
Automated Refractometry
Automated
ophthalmic refractometers save time, reduces costs, and improves operational
safety. These computer-controlled machines provide an objective measurement of
a person's refractive error and prescription for glasses or contact lenses. The
main components of these automated systems include instrumentation and computer
software. The instrumentation consists of both coupler and lens forms that are
using to get clear images of the different parts of the eye. Lenses are used to
focus light into a scanner that takes a detailed photograph of the eye. The
camera, scanner and instrumentation then allow the physician to create an image
of the patient's eye and get important details about the health of the retina,
lens and other optical components.
Portable Ophthalmic Refractometer
Smartphone-based
refractometry is an emerging trend, which allows to conduct refractions and
collect the basic measurements required for glasses anywhere. A portable kit
may include, auto-refractors, auto-lensometer/focimeter, phoropter/trial lens
kit, and a smartphone. A portable refractometer is capable of simultaneously
measuring the refraction of both eyes (binocular) at one meter distance. With
the emergence of Covid-19, the demand for such refractometers is expected to
increase as they provide measurements at one meter distance without any
contact.
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