§ 4.76a. Computation of average concentric contraction of visual fields.
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/us/cfr/t38/s§ 4.76a·A research copy — for the controlling text, always check the official state or federal source. Not legal advice.
::: {width="100%"} ::: {.table_head} Table III---Normal Visual Field Extent at 8 Principal Meridians ::: ::: {.gpotbl_div} Meridian Normal degrees Temporally 85 Down temporally 85 Down 65 Down nasally 50 Nasally 60 Up nasally 55 Up 45 Up temporally 55 Total 500 ::: ::: Example of computation of concentric contraction under the schedule with abnormal findings taken from Figure 1. ::: {width="100%"} ::: {.gpotbl_div} Loss Degrees Temporally 55 Down temporally 55 Down 45 Down nasally 30 Nasally 40 Up nasally 35 Up 25 Up temporally 35 Total loss 320 ::: ::: {.table_foot} Remaining field 500° minus 320° = 180°. 180° ÷ 8 = 22 1/2° average concentric contraction. ::: :::
(Authority: 38 U.S.C. 1155) \[43 FR 45352, Oct. 2, 1978, as amended at 73 FR 66549, Nov. 10, 2008\]
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§ 4.76a
Computation of average concentric contraction of visual fields.
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