Working in an optical lens grinding company there are many ways to grind lenses to suit programmers. One of the main ones we do is call Autograph Office for that purpose.
When grinding we not only take into account the direct vision i.e. - what the eye is looking at when looking ahead, but also when the eye needs to move side to side as in reading or looking at a computer screen. For example - with the glasses I am wearing now - the centre of the screen is in focus, and the edges of the screen are also in focus and not distorted. With non Office lenses you will find that the centre of the screen is perfect however the edges are blurred until you move your head to read the edges (by directing your vision). You cannot move your eyes because you will be looking at the lens through an angle. The same with the up/down vision as the lower section of the lens is ground to give better results when looking slightly down at a screen, and when you look up the upper part of the lens is ground for longer vision. So hopefully that will help. Dave ******************************************************************** David J. Boccabella Proprietor Anubis Systems Phone: 0433 808 525 Fax: 3200 0085 Email: <mailto:[email protected]> [email protected] This e-mail and it's contents is confidential to Anubis Systems. This e-mail, any attachments, or any part of can not be reproduced without the express written permission of Anubis Systems ******************************************************************** From: [email protected] [mailto:[email protected]] On Behalf Of Stephen Price Sent: Wednesday, 12 May 2010 4:55 PM To: ozDotNet Subject: Re: [OT] Odd Question/Situation I had this cool idea of applying a distortion or blur over the top of your monitor so that it corrects for astigmatism. It would mean you could sit and look at your screen all day without needing to use glasses, and without getting tired eyes. The thing with astigmatism is that you have different focal lengths for vertical vs horizontal lines. Text is made up of both vertical and horizontal lines so your eyes continually refocusing (when I was younger my eyes could do it for a long time before getting exhausted so I didn't know I had it until I got older and started getting blurry vision after reading for half hour). It would be so cool to turn on an app and take off your glasses. :) On Wed, May 12, 2010 at 2:42 PM, mike smith <[email protected]> wrote: On 12 May 2010 15:04, Arjang Assadi <[email protected]> wrote: > Got eye exam, got reading gleasses, But when there is zoom do we need gleasses? > > If we can change the size of what we read do we really need to use > reading glasses (and keep the font the same size)? It just doesn't > make sense , guess this is a question for Dr Carl! Glasses don't just fix magnification, they fix things like astigmatism http://en.wikipedia.org/wiki/Astigmatism_(eye) And probably other stuff - that's a lot of what my long distance glasses are fixing though. > > I know it is not Friday It must be Thursday, I never could get the hang of Thursdays. > > Regards > > Arjang > -- Meski "Going to Starbucks for coffee is like going to prison for sex. Sure, you'll get it, but it's going to be rough" - Adam Hills
