Visual Field Test
A comprehensive eye exam typically includes visual field testing to assess the full horizontal and vertical range and sensitivity of your vision. Visual field tests provide a subjective measure of central and peripheral vision, or side vision, and is commonly used to determine the severity of, and monitor glaucoma.
What Does A Visual Field Test Detect?Visual field tests are used to detect blind spots that could be an indication of eye diseases. The size and shape of a blind spot indicate the type and severity of diseases of the eye, optic nerve and visual structures within the brain. For example, optic nerve damage, resulting from glaucoma, produces a very specific visual field defect, while other eye and brain disorders cause different degrees of peripheral vision loss and/or other visual field abnormalities. Brain abnormalities, such as those caused by strokes or tumours, can impact the visual field. Moreover, the location of the stroke or tumour in the brain can frequently be diagnosed by the size, shape and location of the visual field defect.
Types Of Visual Field TestsThe most common visual field test uses a light spot that is repeatedly presented to an individual in various locations of their peripheral vision. Digital imaging of the optic nerve and surrounding tissues is an objective test that can also be used to assess field of vision and detect glaucoma damage and progression. Well equipped clinics use both tests, because occasionally the optic nerve changes before the visual field or changes to the visual field can be observed before damage to the optic nerve is detected. Combined, the two tests equip optometrists with the information necessary to properly diagnose and treat patients.
Now you know the importance of chasing lights and clicking buttons during your eye exam with a qualified optometrist!Schedule An Appointment
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Our Edmonton Eye Exams Are Comprised Of 4 Phases Of Evaluation
1. Eye Exam Pre-Testing
Corneal Thickness | Intraocular Pressures | Visual Field
Pre-testing is a detailed process that gathers all necessary information for the optometrist in advance of the optometrist-administered eye examination. This process involves completing a detailed patient history, as well as a series of standard tests. Pre-testing is an essential part of the comprehensive eye exam process, providing valuable information and visuals for both the optometrist and the patient.More About Pre-Testing »
2. Advanced Diagnostic Testing
Retinal Photography, OCT, Topography
eye-deology Vision Care differentiates itself from other clinics by having the most advanced modern diagnostic specialty testing equipment. Specialty equipment, such as a wide-angle high-resolution retinal imager, Optical Coherence Tomography (OCT), Humphrey Visual Field Analyzer and corneal topographer, ensures that patients receive the best comprehensive eye care.More About Advanced Testing »
3. Optometrist Examination
Health Assessment & Disease Diagnosis
eye-deology Vision Care Edmonton optometrists perform a multitude of tests and assessments to evaluate ocular health, eye coordination, and visual acuity. In addition, they also evaluate the results of the tests and scans performed during pre-testing. As part of patient education, our optometrists also take the time to show and explain results to patients.More About Doctor Exam »
4. Eye Glass Consult
Prescription | Lens Selection | Digital Fitting
If you require corrective lenses to improve your vision, our licensed opticians will customize their fit to your unique attributes, needs, lifestyle, and budget. Our opticians are happy to provide you with information about the latest eyeglass frame and lens technologies available so you can make informed decisions and begin seeing and looking your best.More About Eyewear Consult »