What is your preferred surgical intervention for lagophthalmos secondary to a facial paralysis and signs of exposure keratopathy?  

If temporary or early in the recovery, consider stick-on external eyelid weights, such as https://fci-ophthalmics.com/products/oculid-external-eyelid-weights/ If it has been several months without any improvement, I like to do gold or platinum permanent weights sutured to the tarsus, in addition to...

If temporary, then a temporary tarsorrhaphy can be very helpful. If permanent, then can consider either ectropion repair with lateral tarsal strip if primary issue is lower lid laxity and exposure from that. Can also consider 1/3 to 1/2 or more permanent lateral tarsorrhaphy depending on how much co...