Eye codes for lens towers to opening force fields marked with a double ring.
All About Eye Codes
After killing a Arisen Congregators in Sohn District you can find the passage to the elevator (which you saw after killing Celestial Best, it was inactive) at the following location, behind the funicular.
Going up to the 3rd floor, you will see panels on which you need to enter codes to deploy the lens towers.
The lens towers allow you to open the double-ringed force fields once a day, when 2 circles meet in the clock in the upper left corner.
Door A - Sohn District place, opens after defeat Arisen Congregators:
- Eye 2: 2602 9417
- Eye 4: 5624 7947
Door B - Sohn District place, opens after defeat Arisen Congregators:
- Eye 2: 3898 9450
- Eye 3: 5012 3677
Door C - Alma Mater Atrium - Cabaret bonfire:
- Eye 4: 6080 7797
- Eye 5: 2856 5003
Door D - Ikari Walkways - Crashed Tram bonfire:
- Eye 3: 5440 3585
- Eye 5: 2029 5238
How to Rise Second Tower
After you have killed the Artillery Boss in Ikari Walkways (Metro bonfire, as i remember), you go to the lower part of the Arcology Underside, where the Mall area is. At the opposite end from where you start is door to Alma Mater Atrium, a circular room with a tower in the middle. You will find the tower key, then take the elevator to access the tower controls. You can then raise the tower, which simultaneously activates the eye ring and allows you to take the elevator to the top of the Alma Mater.