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Extra resources for A Visual Evaluation with Automate Devices

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CLASSIFICATION OF VISUAL FIELD PRINTOUTS 37 Age of the Patient Since the interpretation of raw data by STATPAC is age dependent, it it is the very important to enter the age of patient accurately. Otherwise the patient’s raw data will be compared to mean normal threshold values of a wrong age group and thus derived decibel deviations from normal will form total deviation numerical plot. Thus, we will get inaccurate total deviation numerical plot. So, all the deviations values of total deviation numerical plot will be inaccurate and the essence of the test is inaccurate.

This served to move his actual blind spot down; this point measured 4 dB and then 0 dB and appears as a black spot below the horizontal on the gray scale. Since the machine thought the blind spot was in the area indicated by the triangle, and the eye was rotated down, each fixation loss catch trail was in actuality projected on to seeing retina and elicited a response, resulting in the 100% fixation loss rate recorded. Care must be taken in all aspects of test performance to avoid such problems.

7. Thus each deviation value in the total deviation numerical plot is converted to symbolic form according to its P value and plotted as total deviation probability plot. 5% which is represented by black square in the total deviation probability plot. So the black square is representing a wide range of deviation values from –8 to –24 dB in this total deviation numerical plot. By seeing the black squares in the total deviation probability plot we cannot tell the depth defect of that point whether its value is –8 dB or –12dB or –24dB, etc.

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