Alviro Patterson wrote:Rory Burns side on technique might work well against county trundlers, but he needs to be straighter against a potent Pakistan bowling attack
Its been something mentioned before, AP. But Rory has explained that his technique is actually built round his eyesight. I assume from his previous interviews that he suffered from amblyopia as a child that wasnt picked up or treated, so he has a very strong left eye ocular dominance. Its a condition where you have a vision imbalance between the right and left side of the eye, it can come from many causes but mostly from people who have near sight in one eye, far sight in the other. The brain tries to focus both eyes the same way, so you end with different vision in both eyes. If left untreated, the worst focusing eye over time gets passed over by the brain, and it stops processing visual stimulus in that eye (hence its name lazy eye).
Adults who never had treatment for it as children end up with the vast majority of their vision coming from one side. Its common for people in Burns case to have completely blurred vision and pretty much zero visual clarity or depth perception in their lazy eye.
So he actually has to open his stance towards mid on so his left eye can see for him down the pitch. If he was straight on he would be totally blinded, he simply couldnt do it.