The Field Optics Research's Compact Binocular EyeShields are the universal binocular accessory that connects to the eye piece of your compact binocular optics. The EyeShields are designed to block peripheral light and distractions, reduces lens glare, and protect your eyes from the elements while allowing you to achieve improved clarity and focus. These Compact Binocular EyeShields are optimized to fit most Celestron, Kowa, Nikon, Zeiss, Brunton, Bushnell, Leica, Vortex, and Swarovski compact binoculars.
Almost ten years ago I put a set on my 1996 Swarovski 10x42 roof prism binocs, a very good set of glasses. The immediate gain in focus, clarity, color rendition and comfort was amazing. The best benefit was from reduced eyestrain during long observation periods. Get a set for all of your optics! A two hundred dollar binoc will seem like a 500 pair....the 1500 dollar unit will seem like a Zeiss, Meopta, Leitz or Swarovski.
Assuming correct collumation and a decent lense coating. Can't ask for more than that. That original set of eyeshields is holding up just fine with daily usage, so it is a quality materials product in addition to being a quality design product.
I just ordered 3 pairs for my other optics and as gifts to friends.