On Wed, 7 May 2003, Neil Johnson wrote:
Another possibility is that a large population of those with corrected vision had their vision slowly degraded by the early applications of the correction. I have no experience with vision correction, but I know anecdotally that most people with corrected vision need their corrections strengthened throughout their lifetime. In reality, their sight problem may have stabilized (or even improved) very early on in the absence of treatment. Thus, our perception of what sight abilities the average person in the United States has might be artificially deflated by early and aggressive treatment.
Bzzzzzt. I just purchased new glasses recently with a weaker perscription. I was surprised, but my optometrist told me that this is common.
Well, just speculation on my part - I am no professional in this area. However, did he discuss _how_ common it is ? Just because it is common does not mean it is the norm. Further, if your recent vision improvements leave you now with a level of vision that still represents a retrograde motion (albeit smaller) since you first got corrected, it could still be consistent with my uninformed musing. ----- John Kozubik - john@kozubik.com - http://www.kozubik.com