Ophthalmology Instruments

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A common person might find Ophthalmologist tools intimidating. Many people avoid or delay regular eye exams. The technology used to diagnose the eye's health is painless, effective, and very accurate.

Below are the most frequently used Ophthalmologist instruments.

Tonometer

This is one of the oldest devices. It measures the pressure inside the eyeball. If the pressure in the eye is higher than a certain level, it's possible for the optic nerves to become permanently damaged. High blood pressure can cause glaucoma, an eye condition. By gently touching the cornea, tonometers can measure eye pressure. Tonometers that touch the eye require injections of numbing drops. Many doctors use air-puff technology to diagnose glaucoma and measure eye pressure.

Phoropter

Optometrists use a phoropter to measure refractive errors and determine the eyeglass number of patients. The patient is asked to stand away from the eye chart. The optometrist will fit the lenses to the patient and determine which one will best suit his vision. The correct prescription is determined by patient feedback. You can find many phoropter for sale in Georgia.

Stereoscope

A stereoscope can be used to determine the correct prescription of eyeglasses and lenses in cases when the patient is unable to give feedback to the optometrist because of mental or physical conditions. To examine the eyes, you will need a mirror that shines light in them and has a hole in their center.

Auto-Refactor

Patients can also be measured and prescribed lenses by an Auto-Refactor based on their refractive error. The screen displays an out-of-focus image, which the patient must examine. The device measures the image and decides when it should be displayed. A prescription is formulated using the average of multiple readings.

Snellen Chart

Optometrists sometimes use Snellen charts as a diagnostic tool. The chart can be physically or electronically attached to the patient. It is about 20 feet or six meters from them. The correct prescription is made for one eye, but the chart is placed at the patient's side.

Retinal Camera

This device is used to take images of the inner eye, including the retina. It is a highly-specialized tool that includes an attached camera and a low powered microscope. A retinal camera can be used by an ophthalmologist to examine the retina of a patient, track changes over time and diagnose any diseases. Modern retinal cameras can use a variety of filters to obtain clear images of different parts.

Ophthalmoscope

An ophthalmoscope is another tool used by optometrists to inspect the inside of the eye. It consists of a light source that has built-in lenses and mirrors. Eye drops are used to dilate the eyes of patients so they can see clearly from the inside. The doctor can diagnose and treat potential eye diseases by using an ophthalmoscope.

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