Final answer:
An In-Flight Emergency (IFE) should be declared when a member's visual disturbances from laser exposure impair their ability to perform critical duties safely. The severity of the visual disturbances and their impact on operational safety are key factors in this decision.
Step-by-step explanation:
When a member experiences visual disturbances due to laser exposure, the determination to declare an In-Flight Emergency (IFE) depends on the severity of the disturbance and the operational impact it has on safety.
If the visual disturbance is significant enough to impair the individual’s ability to perform critical duties safely, especially in the context of aviation or sensitive operations, an IFE should be declared promptly to ensure that appropriate measures are taken to mitigate risks and obtain medical assistance.
Laser exposure, especially with high intensity UVB light, can lead to serious ocular damage such as welder's flash (photo keratitis or arc eye), and an increased risk of cataracts.
Within a flight context, any impairment to a crew member’s vision can be hazardous and necessitates swift action. However, the specific protocols for declaring an IFE may vary based on the organization's guidelines and the circumstances of the incident.