According to the RNIB, around 2 million people have significant sight loss in the UK.
Very few people have complete ‘black’ blindness, so any residual vision (remaining eyesight) needs to be maximised. People often go to a clinic hoping that a pair of glasses will fix their vision, but this may not always be possible. Low vision is treated by maximising the patient’s eyesight beyond what glasses or contact lenses can achieve.
Any decline in your sight should be checked by an optician. Signs that you need to seek help include:
colours look a bit washed out
you’re finding it difficult to judge the depth of steps
straight lines look wobbly
you find it hard to read
you're struggling to see road signs when you’re driving
It's important not to simply wait for these signs to appear. They're not just a part of getting older, they're telling you that something is wrong.