Spots and floaters

Could be ‘These are small, semi-transparent or cloudy particles within the vitreous humour, the clear, jelly-like fluid inside your eyes,’ says David. ‘However, seeing occasional tiny specks or squiggles in front of your eyes is normal.’

When to worry ‘A sudden change in the number, appearance or frequency, or a shadow coming across your vision, could indicate a tear or detachment in your retina,’ says David. ‘Emergency surgery is vital.’