Broken lenses

[DKL]

I would say broken rod lenses.
We experiencing a lot of broken lenses. It's hard to detect this, regardless of the discussion if you can or can not use it anymore. Often you stil get a clear image with a broken lens.

[tester]

You can detect broken lenses with the ELT http://www.lighthouseoptics.com/medical-...ens-tester

We try to use the endoscopes with broken lenses until it is not being accepted anymore in theatre.
Especially the thin endoscopes, around 4mm and thinner are having more broken lenses then the thicker ones.