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2.03 Contraction of Peripheral Visual Fields in the Better Eye.

    A. To 10 degree or less from the point of fixation; or

    B. So the widest diameter subtends an angle no greater than 20 degrees; or

    C. To 20 percent or less visual field efficiency.

2.04 Loss of Visual Efficiency. Visual efficiency of better eye after best correction 20 percent or less. (The percent of remaining visual efficiency equals the product of the percent of remaining central visual efficiency and the percent of remaining visual field efficiency.)

12.02 Organic Mental Disorders: Psychological and behavioral abnormalities associated with a dysfunction of the brain. History and physical examination or laboratory tests demonstrate the presence of a specific organic factor judged to be etiologically related to the abnormal mental state and loss of previously acquired functional abilities.

The required level of severity for these disorders is met when the requirements in both A and B are satisfied.

    A. Demonstration of a loss of specific cognitive abilities or affective changes and the medically documented persistence of at least one of the following:

      1. Disorientation to time and place; or

      2. Memory impairment, either short-term (inability to learn new information), intermediate, or long term (inability to remember information that was known sometime in the past); or

      3. Perceptual or thinking disturbances (e.g., hallucinations, delusions); or

      4. Change in personality; or

      5. Disturbance in mood; or

      6. Emotional liability (e.g., explosive tempter outbursts, sudden crying, etc.) and impairment in impulse control; or

      7. Loss of measured intellectual ability of at least 15 I.Q. points from premorbid levels or overall impairment index clearly within the severely impaired range on neuropsychological testing, e.g., the Luria-Nebraska, Halstead-Reitan, etc; AND

    B. Resulting in at least two of the following:

      1. Marked restriction of activities of daily living; or

      2. Marked difficulties in maintaining social functioning; or

      3. Deficiencies of concentration, persistence or pace resulting in frequent failure to complete tasks in a timely manner (in work settings or elsewhere); or

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