There are far fewer low-budget options in Montego Bay compared to nearby Negril, so this is mostly a mid-range area for the Caribbean, with a few really high-end places sprinkled in. The all-inclusive resorts in Montego Bay are excellent value, especially when packaged with a flight.
Instead of providing just two lens powers like bifocals (or three, like trifocals), progressive lenses are true multifocal lenses that provide a smooth, seamless progression of many lens powers for clear vision across the room, up close and at all distances in between.
Diagram of a monocular using a Schmidt-Pechan prism. A monocular is a modified refracting telescope used to magnify the images of distant objects by passing light through a series of lenses and usually prisms, the application of prisms resulting in a lightweight, compact telescope.