Various systems and techniques may be used for moisturizing an eye during ocular surgery. In particular implementations, a system and a technique for moisturizing an eye may include the ability to determine whether an eye should be moisturized during ocular surgery and to activate a fluid control device if an eye should be moisturized. The activation of the fluid control device may allow fluid flow from a fluid reservoir to a fluid nozzle coupled to a nozzle mounting device adapted to hold the fluid nozzle stable relative to a patient's eye. The system and the technique may also include the ability to deactivate the fluid control device.