Steve Kelley | In world of NFL coaching, Jim Zorn has arrived. Originally published November 24, 2008 at 12:00 am Updated November 23, 2008 at 10:15 pm. On Sunday, as the Seahawks lost for the ninth time in 11 games and the fourth time in a row, it is worth taking a moment to celebrate Jim Zorn's success. Share story.
Eye relief refers to the distance between your eye and the lens at the rear of the scope that will give you a full crisp view, no dark ring around the edges. Important to know for high recoil calibers to avoid a black eye or worse. Some scopes are single power (3Ã32, 4Ã30 for example) which means no adjustments.
As the other commenter says, OD is for the right eye. -2.00 SPH means you're nearsighted, and the correction is a spherical lens with focal length of 50 cm (2/meter). There's no correction for astigmatism (cylindrical lens) here. +2.00 add is part of a prescription for bifocals.