I've just had an eye test and although my eyes had'nt changed at all i have been referred to my doctors cause i could'nt see green dots at certain points on one of their flashy machines.
The optician said this had nothing to do with my eyes?
Has this happened to anyone?
Could this be connected to anything else i.e lower back pain as this is the only thing i have wrong with me?
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You look at the red dot in the middle of the screen and then green dots appear and you have to say how many you can see?!
I could see them to the sides and below but i was missing the ones above, apparently thats not good and the doctor calls!!
Thinking about that did'nt help with my 10k time yesterday. 37mins my punishment for missing the green dots?!
Green has a different focal length to red as its in a different place in the visible spectrum
So if both green and red dots are in focus the prescription is spot on
Mind you usually get the black on red and green test so I could be talking out of my bottom
Steve.
No idea why a problem would be unconnected to your eyes though!!
Used routinely for detecting glaucoma but can pick up a number of other things, although ultimately affecting the eyes (by the way of visual field), the problem may originate elsewhere.
Correct mercury, it is to do with wavelength.
The duochrome test (black rings on a red and green background) works on the basis that the eye cannot focus red and green light at the same point and helps determine under or over correction.
Colour blind patients can also do this test as it is the sharpness of the black circles that is referred to rather than the appearance of the colour!
Missing dots at the top could simply be the rim of your specs blocking your view or your eyelids if they are in any way droopy! Your optician should be aware of these factors too though.
Im hoping it is something very simple?!
I had this test done and apparently my results were very, very poor! However, their wasn't any problem it was just that after having several different tests done, my eyes were very tired. I had the test done again a week later and the results were fine so don't worry about it!
I only went to the opticians to get my lovely new oakley specs and came home with a doctors appointment.
mmmmmm!!!!