Monocular vision is not a bar in the UK. It is well understood that someone with monocular vision (particularly from birth or when very young) using this limitation well may be more effective than those with 20/20 vision who do not.
As already said, contact a local CAA Air Medical Examiner (AME). The CAA publish a list. Your condition is not unusual and you will get a clear unambiguous answer. There are many Pilots who have sight in one eye only, there are various licensing options and the AME will also advise you on these.