6. (foll by: to) related (to) or dependent (on). 7. (when: postpositive, often foll by to) having a subsidiary or minor relationship (with). 8. (General Physics) (esp of a beam of light or particles) arriving at or striking a surface: incident electrons.
Answers (1) hill. Personally, if you use salt water properly, it won't cause any damages to your sunglasses. But if you rinse your sunglasses in salt water for a long time, it may cause some damages to the lens coating of your sunglasses. Anyway, you needn't rinse your sunglasses in salt water.
Otherwise you will repair the water damage, only to have the water damage occur again the next time it rains. If the water damage was caused by plumbing problems, repair them. Common sites for water leaks are the windows, the roof and the exterior shell (walls). Redo the window caulking if needed.