Blind cavefish Astyanax larvae have ocular vergence during LPC in response to vibrations from a glass rod, which elicits a strike behavior. Freely swimming larvae have eyes pointing sub-perpendicular to their body (A). When the source of a vibration stimulus is over the head, eyes turn upward (B). This was followed by a strike in which the cavefish larvae bit the glass rod (C). Eyes vergence remains for a few moments after a strike (D). Dotted arrows highlight eye angle before vergence to show the change of eye position.