A Visual Evaluation with Automate Devices by GR Reddy

By GR Reddy

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The amount of change in decibels is printed under the message MD change. 5% level that P value is printed along with a solid triangle to indicate degradation or an open triangle to indicate improvement. If the amount of change is not judged to be significant, the words non-significant follow the decibel value. PATTERN STANDARD DEVIATION PSD is developed to express the irregular loss of retinal sensitivity. The irregular loss of retinal sensitivity can be in the form of localized field loss or generalized field loss.

3) An average difference of 1 dB must be maintained between the two eyes on four consecutive tests. Role of MD index in the follow-up tests : In change analysis follow-up tests, the change in mean deviation index per year will be calculated. 1 dB per year. 1 dB per year, it gives a message that the mean deviation is significant at P value 5% and it also gives the magnitude of the change of mean deviation index. In glaucoma change probability analysis, a change in mean deviation index of the patient will be compared to the change in deviation index among of stable glaucoma patients.

Because the total deviation probability plot, pattern deviation plots, global indices and glaucoma hemi field test are all derivatives of inaccurate total deviation numerical plot, we don’t take them into consideration. Effect of the Size of the Pupil Normally the size of the pupil should be between 3-4 mm. (The stored mean normal values of the normal population are obtained with the pupil size 3-4mm). Constricted pupil is thought to give rise to diffuse visual field depression or edge scotomas.

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