When should I stop drinking water prior to undergoing cataract surgery, and what considerations should I bear in mind regarding my hydration and the timing of my last intake? Are there specific guidelines or protocols that the surgical team recommends to ensure optimal conditions during the procedure? Given that dehydration can present its own set of complications, how do I balance the need to maintain adequate fluid levels with the necessity of adhering to the pre-operative instructions? Is there a standard time frame, perhaps several hours before the surgery, that is universally accepted? Furthermore, could the nature of the surgery itself or any accompanying medications influence this timeline? Are there alternative measures I can take to stay hydrated effectively while still complying with the restrictions? These inquiries compel a deeper exploration of both pre-operative care and the intricacies involved in preparing for such a vital medical intervention.