Retinoscope

The retinoscope is a type of medical equipment. A vault physician uses a retinoscope to test the reflectivity of the eye's retina. It is one of the tools the physician uses to gauge the health of a Vault resident.

Vault-Tec supplies retinoscopes to the Vaults prior to the Great War of 2077.

On August 3, 2274, James, the Vault 101's vault physician, uses a retinosocpe when examining his child's health after they mention being sick. James concluded his child is feigning sickness in order to avoid the GOAT and orders them to class.