Overview of negative dysphotopsia:    • Why do I see a shadow, crescent or ar...  
Treatment of negative dysphotopsia involves moving the intraocular lens (or IOL) optic from inside of the capsular bag anteriorly to place the optic anterior to the anterior capsular leaflets while keeping the IOL haptics inside the capsular bag in a procedure known as reverse optic capture.

To achieve reverse capture or ROC, we extricate the IOL from inside the capsular bag, then gently reposition it to make sure the haptics remain inside the capsular bag while the optic is now anterior or in front of the anterior capsular rim.

In my experience, ROC cures negative dysphotopsia in over 90% of cases.

This procedure is performed with eyedrop anesthetic and takes about 10 minutes to perform.