38 CFR § 4.76a - Computation of average concentric contraction of visual fields.

---
identifier: "/us/cfr/t38/s4.76a"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "38 CFR § 4.76a - Computation of average concentric contraction of visual fields."
title_number: 38
title_name: "Pensions, Bonuses, and Veterans' Relief"
section_number: "4.76a"
section_name: "Computation of average concentric contraction of visual fields."
chapter_name: "DEPARTMENT OF VETERANS AFFAIRS"
part_number: "4"
part_name: "SCHEDULE FOR RATING DISABILITIES"
positive_law: false
currency: "2026-03-24"
last_updated: "2026-03-24"
format_version: "1.1.0"
generator: "[email protected]"
authority: "38 U.S.C. 1155, unless otherwise noted."
regulatory_source: "29 FR 6718, May 22, 1964, unless otherwise noted."
cfr_part: "4"
---


# 4.76a Computation of average concentric contraction of visual fields.

Table III—Normal Visual Field Extent at 8 Principal Meridians

| 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.

| 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 |
| Remaining field 500° minus 320° = 180°. 180° ÷ 8 = 22⁄° average concentric contraction. |  |

(Authority: 38 U.S.C. 1155)

[43 FR 45352, Oct. 2, 1978, as amended at 73 FR 66549, Nov. 10, 2008]