Driving
Check with your optician to find out if you still meet the standards for driving with some simple eye tests.
It's a legal requirement to notify the DVLA if you don't meet the standards. You should ask your optometrist if you are unsure if you need to notify the DVLA or not. You can call their medical helpline on 0300 790 6806.
Remember to also notify your insurers to make sure your insurance is still valid.
Public Transport
Take time before your journey to familiarise yourself with it as much as possible. You can also let transport providers know ahead of time of your sight impairment and receive appropriate assistance.
Glare
Many people with cataracts find that sunshine can be particularly dazzling; wraparound eye shields or sunglasses can help with this. It's usually better to try them before purchasing so if possible, ask your optician's advice and get help with the level of tint for your glasses.
You can also try wearing a hat with a brim when outside.