| 摘要 |
Disclosed is apparatus to limit the peripheral vision of the user. A pair of shields are pivotally attached to the templepieces of a pair of eyeglasses or an eyeglass-like frame. The pivotal movement is arrested by an inwardly extending pivot stop located near the upper edge of the shield. The pivot stop halts the pivotal movement of the shield in two positions to either block the peripheral vision or leave it unobstructed.
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