What are the eyesight requirements for LPPL/LAPL in the UK?
The CAA has a publication called Light aircraft pilot’s licence (LAPL) Medical certificate - A quick guide for Pilots. It says:


  Your GP  
  
  
  Cannot perform the initial assessment if you have one or more of the pre-existing diagnoses that require additional assessment. See
  below:
  
  
  Decreased visual acuity in either eye below 6/9 despite any correction
  
  


In other words, if your corrected eyesight is worse than 6/9 (whatever that means) you need to go to an AME for the medical, otherwise the GP can issue it.

Unfortunately the guide is unclear (as far as I can see) on what exactly the AME will do:


  If your GP decides he/she cannot
  issue a LAPL medical certificate
  you will need to see an AME for
  assessment. 


I don't know if that means the AME can issue an LAPL medical with limitations, or require you to get a class 2, or something else. Unless someone else can find more information, it may be easiest to call an AME and ask them.