Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Posting-Version: version B 2.10.2 9/18/84; site brl-tgr.ARPA Path: utzoo!decvax!genrad!panda!talcott!harvard!seismo!brl-tgr!wmartin From: wmartin@brl-tgr.ARPA (Will Martin ) Newsgroups: net.med Subject: Re: Reading in bad light Message-ID: <536@brl-tgr.ARPA> Date: Thu, 8-Aug-85 16:33:47 EDT Article-I.D.: brl-tgr.536 Posted: Thu Aug 8 16:33:47 1985 Date-Received: Fri, 9-Aug-85 19:42:30 EDT References: <1528@trwrba.UUCP> <190@ski.UUCP> Reply-To: wmartin@brl-bmd.UUCP Distribution: na Organization: USAMC ALMSA, St. Louis, MO Lines: 26 Hmm, so when you hold the page far enough away to let your eyes focus at their normal, unstrained distance, you don't have enough light coming from the page to your eye to distinguish the characters, so you bring it closer to make them out, and this strains your eyes. I have just the opposite problem -- in one eye (my right, measured as 20/500 uncorrected), I have clear vision about four inches away from the eye, with a depth of field about 1 1/2 inches. I can read characters or words easily enough with that, but, if I hold a page of text at that distance, the field of view of that eye is far too narrow -- I cannot see enough of the page to read wuth my normal rapid scanning which gives me a good fast reading speed. I would have to move the paper through the eye's field of view, which can't be done steadily for long. An interesting idea for getting some use out of this eye would be to mount some sort of high-contrast small display (that would present a word or phrase of text) in a headset which would hold it in that limited field of vision for that eye, and use tachistoscope techniques to flash the words by at high reading speed. Hmm.. netnews at 1000 wpm while lying in bed... (And, if I could switch off my corpus callosum, I could have a different one for each eye, showing different stuff... Which eye should get the technical groups and which the artistic & frivolous?) Science marches on... Regards, Will