How does the MEGA work?
A For decades dome-ports have been the de-facto standard used on world’s best wide-angle underwater camera housings. We’ve adapted the same optical concept to human vision. Over the years, there has been lots of WRONG information published about the “virtual image” created by dome-ports. Please take 2 minutes at “How it Works;” our diagrams make this easy to understand. (top) 38. Q I’m confused about the difference between Nearsighted and Farsighted (called Shortsighted and Longsighted in the U.K.). A NEARsighted = difficulty seeing objects far away with one’s naked eyes. FARsighted = difficulty seeing objects close up with one’s naked eyes, but CAN see infinity with naked eyes. Our Glossary has more info. ALSO As we age, everyone eventually needs reading glasses or bifocals, regardless of having perfect 20/20 vision, or being nearsighted or farsighted. This chart shows age vs. loss of close-focus ability (called Presbyopia). (top) 39.
