Ok, get those eyesight requirements printed off and pay for a private eye examination, show the optician the requirements and he'll tell you on the spot, it'll cost you 25 nicker maximum, but your peace of mind is worth it. Thats what I did and I thought I was blind as a bat, apparently not though.
6/6 = perfect vision. (It is the same as 20/20 vision)
here are the standard eyesight requirements:
Eyesight Standards, the standard personal weapon is the SA80 and this requires vision in the right eye to be correctable to no less than 6/9. Vision in the left eye must be correctable to no less than 6/36. Spectacle correction must be no greater than -7diopters or +8 in any meridian. Certain types of surgery or laser treatment to correct visual defects are unacceptable and clarification should be sought prior to application.
The requirements SorridStroker posted show that Chris will be fine.
Just for anyone else who might be wondering how the 6/6 thing works, 6/6 is good/acceptable vison. There is no such thing as 'perfect vision', its just that 6/6 is adopted as the measurement where no visual impairment is said to be present. You can have better vison that this.
20/20 is the same, 6 metres is (approx) = 20 feet, that's where it comes from.
How it works is this, if your vison is x/y then it means you can see at 'x' distance what a person with no impairment can see at 'y' distance.
Normally, the test is done at 6m so the first number is 6. 6/6 means you can see at 6m what a person with unimpaired vision an see at 6m. In other words, you have unimpaired vision.
If you have 6/12, then you can see at 6m what an unimpaired person can see at 12m. In other words, you can only see things clearly from half as far as a person with good eyesight.
On the other hand, if you have 6/5, then you can see at 6m what an unimpaired person can see at 5m, so your eyesight is better that theirs. So you have better than 6/6 (20/20) eyesight.
The snellen charts used for eye exams have the numbers written below them and start big with something like 6/24, going down through 6/6 to 6/4 etc etc.