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Optometry involves examining and treating problems related to eyes and vision. Optometrists use various equipment, such as ophthalmoscopes, eye charts, and keratometers, to measure eye function and diagnose issues. Corrective lenses and surgical equipment, such as lasers and microkeratomes, can also be used to address refractive disorders and perform minor eye surgeries.
Optometry deals with problems relating to the eyes and vision. Job duties for optometrists can range from contact lens fitting to laser surgery, and many types of equipment help the optometrist perform these different tasks. Ophthalmoscopes, eye charts and examination chairs comprise optometric equipment for primary examinations. Measurements of eye function are taken by devices such as keratometers. Surgical optometry equipment, on the other hand, includes laser devices, microkeratomes, and foreign body removal aids.
Examination is one of the main components of optometry. The main examination tool used by optometrists is the ophthalmoscope. It consists of a battery-powered light and several lenses contained in a small device. These lenses can be used to examine the retina, cornea, and other eye structures. Patients receive exams in an optometric examination chair that can be adjusted.
Vision grade can be tested with two main optometry tools: an eye chart and a foro-optor. Graphics containing letters, numbers and other symbols can be printed on a whiteboard or can be reflected against a plain background using a graphics projector. As a patient details the various symbols found on the charts, she looks through different lenses to determine what type of visual assistance will be needed. A photorotor is the device that helps patients view the graph through these lenses.
Diagnostic tools comprise another important category of optometry equipment. These tools help optometrists measure the functional capacity of various parts of the eye. They usually consist of a device applied near the eye and have an electronic socket with a digital monitor that gives various readings. One of the most important measuring tools is the keratometer. The device assesses the amount of curvature in the eye’s cornea and can help determine the source of the blurred vision.
Many similar devices help the optometrist evaluate various aspects of the eye. A pachymeter, for example, measures the thickness of the cornea and helps diagnose glaucoma. A retinoscope and pupillometer measure different properties of the eye’s retina and pupil, respectively.
A large percentage of blurry divisions are caused by refractive disorder, in which light doesn’t hit the retina properly. Most optometrists will use refractive aids and other optometry equipment to address these issues. This equipment consists of corrective lenses in the form of glasses or contact lenses. Such lenses can be made of glass or plastic. They refocus light so that it is properly filtered through the eye.
Surgical optometry equipment is required for optometrists certified to perform minor eye surgery. Some optometrists perform corrective procedures with laser technology, in which a device known as a microkeratome cuts into the eye, allowing access to the excimer laser. This laser can then reshape eye structures such as the cornea. Optometric equipment for removing a foreign substance, such as needles and sharp-pointed devices called eye sponges, may also be helpful.
