| These are the same as for discission, with the addition of a needle with a long cutting edge. |
| In dense capsular membranes following removal of a lens by discission in which a cutting needle cannot make a hole. |
| After a cataract has been removed, either by discission or extraction, an opaque membrane is usually left. |
| Although the operation of discission for after-cataract is simple it is not to be undertaken lightly. |
| The discission needle is made to pass behind the band whilst the cutting needle lies in front of it. |
