Start from the centre of the lens at the top of the frame
Using your thumb, pull the rubberised frame away from the lens
Work along the lens towards the corners to separate the frame
Once the corners are free, pull the lens away from the bridge
Place the new lens into the bridge first and press to secure
Then, work the lens into the frame, working corner by corner
Press the frame firmly into the edges of the lens to ensure it’s secure. There are symbols printed on the frame to show you where to push!
Remember! Try not to touch the front or back of the lens to avoid smudges!