>> On Mon, Jul 29, 2019 at 1:42 PM <wayneedick@gmail.com> wrote: >> >> I found a few things interesting. The rate of low vision >20/40 to 20/60 is quite high, even among young people 18 to 44. That prohibits driving in many regions and impairs reading significantly. Both issues limit employment. It’s 0.12%, smaller than I’d thought TBH. Also, WHO defines “low” vision as 20/70 and worse. Most standards such as ANSI and I believe ISO are built around “near normal” which cuts off at Snellen 20/60. The cutoff in most stated for non-commercial driving is 20/40, and the FAA cut off for third class medical (for non-commercial Private pilots) is 20/30. All these figures are “with correction” an important distinction. The figure I find most interesting is the age 45+, with over 3% uncorrectable (surgery needed?) to 20/40. And here’s why this is so important: Absent an actual study, I’d venture than many of today’s octogenarians have never and will never use computers or mobile devices. But tomorrow’s elderly will have grown accustomed to daily computer use. This certainly indicates the importance of robust vision standards for displays/devices being important for quality of life. Andy
Received on Wednesday, 31 July 2019 15:00:05 UTC