Talk:Diplopia

Mental Diplopia

Halgren et al. (1994) used the term 'mental diplopia' to describe a condition arising from temporal lobe epilepsy. Is this relevant? 163.1.143.187 17:46, 31 May 2007 (UTC)

Question

Does diplopia always affect the full field of vision, or can you have double-vision for, say, the center of your vision but not the surrounding area, or in other partial ways? I've always assumed that it affects everything, but I don't know why I've assumed that. WhatamIdoing (talk) 06:45, 13 January 2008 (UTC)

This article was terribly written. Someone must go over it for grammar and colloquiality —Preceding unsigned comment added by 69.250.124.203 (talk) 17:13, 10 February 2008 (UTC)

"It makes viewing stereograms much easier."

Sorry, dunno if I'm doing this right. I don't edit wikipedia much.

Baaaaasically, I'm not sure about the title sentence, because I can do voluntary diplopia but stereograms don't work for me, with or without me diplopia-ing it up. (This is particularly frustrating when trying to look at 10,000 Days' booklet art that everyone raves about. :( ) Then again I have a slight squint so I'm a bit of an anomaly. Anyone know for sure whether it helps or no?

Voluntary Diplopia

I can do voluntary diplopia(without blurring the images and 'forcing' the eyes) and I find it very useful and very fun. Here are some uses:

• It's very easy to view stereograms. If the stereogram are meant for wall-type viewing, the depth appears reversed, but on cross-eye view, the depth is 'normal'. I can see a stereogram situated at 5 meters away (wall eyes/cross eye view)
• I make sometimes stereo pictures of an hill (or a building), the distance between the photos is few meters or more. I put both pictures on the screen (left/right), I cross the eyes and I enjoy a 3D miniature hill/building in front of my eyes :)
• I make many panoramas, and I need to stich a lot of pictures. While stitching, I need to be sure that the keypoints of each pictures are positioned correctly. By looking cross-eyes, I can see the misplaced keypoints very fast. This works very good on comparing 2 pictures in front of me (I see in an instant any differences between of them).
• If I see at a distance 2 similar blocks of flats and I induce diplopia, the combined images looks like a small block (few cm wide) which is in front of me, very close (few cm away). Not very usefull, but fun :) This works very good on patterns; makes the illusion that the pattern is very close to me and very small.
• If I look cross eyes, and try to concentrate only to a part of the left or right image: good concentration exercise. Also, it's very interesting to look at 2 faces and combine into another face. So, I get binocular rivalry on demand :D

So, voluntary diplopia is very useful :)

Paulnasca (talk) 20:54, 10 July 2008 (UTC)