Index - O
| octal | Numeric.Optics |
| only | Optics.Prism, Optics.Core |
| Optic | |
| 1 (Type/Class) | Optics.Internal.Optic, Optics.Optic, Optics.Core |
| 2 (Data Constructor) | Optics.Internal.Optic |
| Optic' | Optics.Internal.Optic, Optics.Optic, Optics.Core |
| OpticKind | Optics.Internal.Optic.Types, Optics.Internal.Optic, Optics.Optic, Optics.Core |
| Optic_ | Optics.Internal.Optic |
| Optic__ | Optics.Internal.Optic |
| orOf | Optics.Fold, Optics.Core |
| OrT | |
| 1 (Type/Class) | Optics.Internal.Utils |
| 2 (Data Constructor) | Optics.Internal.Utils |
| over | Optics.Setter, Optics.Core |
| over' | Optics.Setter, Optics.Core |
| overA | Optics.Arrow, Optics.Core |