Eye Dominance, Sighting and the Cue

[pottr]

I missed the context you were after, sorry pal.

Was skimming the phone app at the dinner table when I brought it up... next time we're around theirs, I'll ask.

[Manu147]

I meant whether an optician will make sure you have a dominant eye when correcting your vision in order that the brain can use one against the other to get depth perception.

Hi vmax, according to my optician, only around 2% of the population do not posess what is regarded as a dominant eye,i myself have a optical reading of -o.o25 in both eyes, which in laymans terms in marginally near sighted, but too small to make any difference to need corrected, so both my eyes visually see the same, but according to him, and any test i have tried, my right is the dominant one, which the brain uses to decipher straight line information, this is a genetic trait in humans, with roughly 70% of the population right eye dominant, and the rest left eye dominant,aside from the above mentioned 2%, according to him people who dont
require any kind of corrective lenses, still posess a dominant eye, except in rare cases.

[pottr]

That sounds somewhat similar to the jargon I was told yesterday.

[Manu147]

Maybe genetic trait was the wrong term i used, he told me that if u asked a child below 4 or 5 to look thru u tube or similar object they will try and use both eyes, above this age this brain will make them choose one, similar i guess to shutting off the non dominant eye when trying to guess whether you can see a thin edge of a red or not.

[alabadi]

It's gone on quite a bit because there are very differing and concrete views on this topic, and a lot of different solutions; it becomes multiplicative. I'm going off to do some more patching..

I don't think there are many and different solutions,its as Terry, Nrage,Vmax and others have said.

the brain is a wonderful machine and will use both eyes to sight, it really doesn't matter where the cue is left, right or centre as long as it is correct for your setup and feels natural. i myself have messed around with this cue under chin and moved it around until i have settled on a position that looks correct to me.

i am left eye dominant however i cue slightly under my right eye, so this cue needs to be under the dominant eye isn't true, i guess you need to find a position that feels natural, rather than trying to force it to be, and as pottr says once you go back to sighting with both eyes all the work you have being doing trying to force even eye sighting will be undone because the brain will start to use the dominant eye for sighting.

i hope you find the correct position for you, good luck

Alabbadi

[Particle Physics]

Ok guys. Anyway, check out my video on tsf, 'pot black and white!' A bit of fun.

[Terry Davidson]

Just had an appointment with the University of Waterloo contact lens research centre and wonder of wonders, with correction for astigmatism (sp?) they managed to get my right eye to 20/20 (not sure of the technical rating but I was clearly reading the 5th line of their chart and they also got the left eye to 20/10 but decided to back off on the left to 20/15 to have the eyes more evenly matched. It will be around a week before I get the actual contacts but I'm really interested in trying them out.

I had a good chat with the senior Doc in the place (it's a teaching facility so a lot of Profs around and because of my problem with my cornea they hooked me up with the 'big gun'). He confirmed I was using my left eye as my preferred eye but he said (he plays snooker and was an archer of high standard) that most people will have a preferred eye which the brain uses as its primary image and for sighting along a cue most people would naturally find a spot between the two eyes which would give their brain the truest picture and it's almost never right underneath the preferred eye but rather might slightly favour that eye. He also said there are some that are more even sighted and although they have a preferred eye they may have the cue favouring the non-preferred eye but whichever spot is chosen which feels the best the brain would soon adapt to that picture given enough use (practice).

He also said that since I could see something out of my right eye, even though it was blurry I would normally have a spot somewhere between the two eyes. If I was totally blind in the right eye then I would likely choose a spot right underneath the left eye or very little distance away from it. He said everyone was unique and it totally depended on the strength difference between the two eyes and also one very important point for snooker players here...if your vision starts to change even a little bit it is really much better to get it corrected right away and maintain at least 20/20 in each eye as otherwise you may start altering the alignment between cue and eyes which then becomes a set-up change and leaves the player a little in limbo until the brain gets re-trained.

For particle's case he said basically the same as above for the idea of the eye patch. His question was...why doesn't he just get his vision corrected to 20/20 or as near as he can and the brain will automatically do the rest and the cue will be either on or very near to centre-chin. For snooker he also recommended either contacts or LASIK as no matter what type of glasses you use you will still get a distorted picture which could change as the glasses move a fraction of a millimeter and also because the glasses are off the eye, in people who are short-sighted (like me) the image is also smaller due to the distance off the eyeball.

He did mention too, for good visual acuity either hard or gas permeable contacts are best for snooker players.

Terry

[sharkster63]

Good Day, Terry and all,
I have managed to read this whole thread, I found it interesting, made me realize how hard and important it is to correctly state the meaning and purpose of a post so it is correctly interpreted to all. I feel lucky that I don't think about wich eye I am using when playing, I have realized that I am right eye dominant but my aim with two eyes is the same as the aim with my dominant right eye. I am thinking that these contacts will help you out allot, it will give you an improved visibility without changing your dominant eye, I also don't think you will have to change your aiming, stance, cueing technique at all. (in short you will have a more stable ground when sighting your shot and angle with the use of two good eyes instead of just one and a bit. I think (not sure but think your stability will improve) less movement unless its from over exertion as for us all.
Hope these contacts improve your visibility and improve or help make the game easier.
Cheers,
Rolly C. sends

Just had an appointment with the University of Waterloo contact lens research centre and wonder of wonders, with correction for astigmatism (sp?) they managed to get my right eye to 20/20 (not sure of the technical rating but I was clearly reading the 5th line of their chart and they also got the left eye to 20/10 but decided to back off on the left to 20/15 to have the eyes more evenly matched. It will be around a week before I get the actual contacts but I'm really interested in trying them out.

I had a good chat with the senior Doc in the place (it's a teaching facility so a lot of Profs around and because of my problem with my cornea they hooked me up with the 'big gun'). He confirmed I was using my left eye as my preferred eye but he said (he plays snooker and was an archer of high standard) that most people will have a preferred eye which the brain uses as its primary image and for sighting along a cue most people would naturally find a spot between the two eyes which would give their brain the truest picture and it's almost never right underneath the preferred eye but rather might slightly favour that eye. He also said there are some that are more even sighted and although they have a preferred eye they may have the cue favouring the non-preferred eye but whichever spot is chosen which feels the best the brain would soon adapt to that picture given enough use (practice).

He also said that since I could see something out of my right eye, even though it was blurry I would normally have a spot somewhere between the two eyes. If I was totally blind in the right eye then I would likely choose a spot right underneath the left eye or very little distance away from it. He said everyone was unique and it totally depended on the strength difference between the two eyes and also one very important point for snooker players here...if your vision starts to change even a little bit it is really much better to get it corrected right away and maintain at least 20/20 in each eye as otherwise you may start altering the alignment between cue and eyes which then becomes a set-up change and leaves the player a little in limbo until the brain gets re-trained.

For particle's case he said basically the same as above for the idea of the eye patch. His question was...why doesn't he just get his vision corrected to 20/20 or as near as he can and the brain will automatically do the rest and the cue will be either on or very near to centre-chin. For snooker he also recommended either contacts or LASIK as no matter what type of glasses you use you will still get a distorted picture which could change as the glasses move a fraction of a millimeter and also because the glasses are off the eye, in people who are short-sighted (like me) the image is also smaller due to the distance off the eyeball.

He did mention too, for good visual acuity either hard or gas permeable contacts are best for snooker players.

Terry

[nrage]

I had a good chat with the senior Doc in the place (it's a teaching facility so a lot of Profs around and because of my problem with my cornea they hooked me up with the 'big gun'). He confirmed I was using my left eye as my preferred eye but he said (he plays snooker and was an archer of high standard) that most people will have a preferred eye which the brain uses as its primary image and for sighting along a cue most people would naturally find a spot between the two eyes which would give their brain the truest picture and it's almost never right underneath the preferred eye but rather might slightly favour that eye. He also said there are some that are more even sighted and although they have a preferred eye they may have the cue favouring the non-preferred eye but whichever spot is chosen which feels the best the brain would soon adapt to that picture given enough use (practice).

He also said that since I could see something out of my right eye, even though it was blurry I would normally have a spot somewhere between the two eyes. If I was totally blind in the right eye then I would likely choose a spot right underneath the left eye or very little distance away from it. He said everyone was unique and it totally depended on the strength difference between the two eyes and also one very important point for snooker players here...if your vision starts to change even a little bit it is really much better to get it corrected right away and maintain at least 20/20 in each eye as otherwise you may start altering the alignment between cue and eyes which then becomes a set-up change and leaves the player a little in limbo until the brain gets re-trained.

This is exactly what I've been saying all along.