How to measure your ocular height
Jamie, co-founder
Last Update 9 months ago
For multifocal lenses such as varifocals, bifocals or anti-fatigue, accurate alignment of your pupils is needed for the best results.
How to measure your OC heights
- Stand/sit in front of a mirror.
- Wear the glasses you’re ordering lenses for.
- Vertically hold a plastic ruler against one lens.
- Align the 0mm mark with your pupil centre.
- Assess the distance to the bottom of your lens (not frame).
- Note heights according to your left & right.
OC height tips
- Only measure the lens, not the frame.
- Use a plastic ruler to prevent scratches.
- If it helps, close one of your eyes to help your focus.
- Brace the ruler against your nose & the frame/lens.
- Left & right are from your perspective, not your assistant's.
OC for sunglasses?
With help from a friend, ask them to shine a torch/light on the lens to illuminate your eye behind. This way they can accurately measure your OC height from the front of each lens.
Read the original article for more information.