We lived abroad for a few years so ds missed his "preschool" screening appointment in UK. When dd was called for hers, shortly after we returned, I asked whether ds could also have one too but as he was just 8 he was "too old" for their system.
I had previously had them checked though, on a visit to UK, as dd does have a superifical porbelm and we wanted a second opinion and he had passed screeening at his then school. Recently had him checked again, following OT appointments includign poor hand/eye coordination and tracking, and he is fine