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.

  Part of: Espinasa L, Lewis K-A (2023) Eye convergence is evoked during larval prey capture (LPC) without visual stimulus and in blind cavefish. Subterranean Biology 46: 147-60.