What you need are binos with extended eye relief. Eye relief is the furthest distance one can get from the ocular lens and still see the complete slight picture.

I have spent some time with the Nikon Monarch ATB - good binos, good value, but the image looked "soft" to me.

Look at the Pentax line of roof prisms: DCF-WP II or DCF-SP. They both have twist down eyecups and excellent eye relief. I currently own the DCF-SP 8X43 and it is a fantastic bino that you can buy for around $400.00. I formally owned the DCF-WP II and it can be found for around $300.00. Both binos are excellent with a full lifetime warrenty, waterproof, nitrogen purged, BAK-4 prisms and fully-multicoated. The SP is a bit lighter (magnesium-alloy frame), has scratch resistant lens coatings, and slightly higher optical performance. These are both rugged, high-quality binos and should provide a lifetime of service.