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Re:OptiKey – Full computer control and speech with your eyes by Shorel on Thursday September 10, 2015 @02:40PM (#10199775)
For visual search I would disregard keyboards entirely and go alphabetical:

A b c d E f g h I j k l m n O p q r s t U v x y z.

Re:OptiKey – Full computer control and speech with your eyes by Nadya on Monday September 14, 2015 @01:49PM (#10216352)
I tried to eye out "Batmobile" and had a surprisingly hard time compared to Colemak or QWERTY layouts. (I tested by making fake layouts in Photoshop.)

The issue being that while I can certainly find the letters when they are alphabetical - clusters of commonly used letters are further apart. Having "th" and "ng" visually close to each other aids a lot.

Re:OptiKey – Full computer control and speech with your eyes by hammock on Thursday September 10, 2015 @05:21PM (#10200636)
Arranged in a clock face perhaps?
Re:OptiKey – Full computer control and speech with your eyes by kedean on Friday September 11, 2015 @10:36AM (#10203884)
Something like the radial keyboard used in Steam's big picture mode could be really useful here. It would reduce potential error surface by quite a bit.
Re:OptiKey – Full computer control and speech with your eyes by Shorel on Monday September 14, 2015 @01:24PM (#10216190)
Good idea, it would make a more memorable position for every letter.