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The 2 red lights from the right eye are seen on the right side; The 3 green lights from the left eye are seen on the left side; This is recorded as: W4LT (D): 5 lights (Uncrossed Diplopia) ET NB: The clinician will be unable to indicate which eye is the deviating eye based on these results alone.
Usually an area of 0.5–1 optic disc diameter from the optic disc is analyzed by using special analyzing software. The test is conducted after pharmacological dilation of the patient's pupils; apart from applying these eyedrops, the examination is completely non-invasive and non-demanding for the person undergoing retinal vessel analysis.
An eye examination, commonly known as an eye test, [1] is a series of tests performed to assess vision and ability to focus on and discern objects. [2] It also includes other tests and examinations of the eyes. [2] Eye examinations are primarily performed by an optometrist, ophthalmologist, or an orthoptist.
An ophthalmic technician plays an important role in patient care. Patients see an ophthalmic technician to have the initial portion of their eye examination completed. . During the initial assessment the ophthalmic technician takes the patient's history, assesses visual acuity, tests confrontational visual fields, evaluates pupils and ocular muscles, measures intraocular pressure and performs ...
If a dim flash ERG is performed on a dark-adapted eye, the response is primarily from the rod system. Flash ERGs performed on a light adapted eye will reflect the activity of the cone system. Sufficiently bright flashes will elicit ERGs containing an a-wave (initial negative deflection) followed by a b-wave (positive deflection).
A button is given to the patient to be used during the exam. The patient is set in front of the dome and asked to focus on the target at the center. A computer then shines lights on the inside dome and the patient clicks the button whenever a light is seen. The computer then automatically maps and calculates the patient's visual field. [5] [6]
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