Otis> But you are in NO POSITION to Neil> Your nephew has a fool for an uncle. Otis> Your opinion -- of course. He simply followed the scientific analysis of the eye's behavior as proven by the primate studies. This is of course the second-opinion -- and he was wise to understand it that way. Otis> He also has run the Iron-man, and looks after his personal health. At his last check he had better than 20/20. Otis> At 12 years of age he was decleared "nearsighed". Otis> The records at both Annapolis and West Point show that the fundamental eye goes "down" in a four-year college. At West Point, the rate is -1.3 diopters for four years, with the spread of -1.1 diopters to -1.6 diopters. Otis> If he had not worn the plus (and verified clearing) he would be at about -2.0 diopters today (about 20/140. Otis> To bad we don't have more people who actually SUPPORT us with true-prevention as Steve Leung OD is now doing it. www.chinamyopia.org Otis> You don't like true-prevention? Find, don't use it, and develop stair-case myopia. No skin off my nose. Best, Otis
Shotwells study at the Naval academy show no myopia prevention using plus OR bifocals. just give it up Otis. your understanding of the literature and the state of myopia research is fragmentary at best! --- Am J Optom Physiol Opt. 1984 Feb;61(2):112-7. Plus lens, prism, and bifocal effects on myopia progression in military students, Part II. Shotwell AJ. Military academies routinely lose a percentage of their pilot-qualified students to myopia during the 4-year academic program. This study investigated the progression of myopia during such a program and evaluated the usefulness of reading glasses to prevent myopia progression and subsequent acuity loss. A group of students at the United States Naval Academy comprised three randomly divided groups: a placebo group (no. 1 pink tint), a plus with prism group (+1.25 D with 2 delta base-in each eye), and a bifocal group (+1.50 D near addition). All the lens powers were relative to the experimental subject's distance refraction and were for use full-time when reading. The pre- and post-test refractive errors at distance were determined using 1% tropicamide HCl. At the end of 4 years, the tropicamide refraction showed approximately -0.25 D of myopic shift in all groups. There were no significant differences between the myopic shifts in the controls and experimental groups. ----
