| Outbound Relationships | Type | Target | Active | Characteristic | Refinability | Group | Values | 
| Replacement of contact lens | Is a | Prescription, fitting and dispensing of contact lens | false | Inferred relationship | Existential restriction modifier |  |  | 
| Replacement of contact lens | Is a | Replacement of device | false | Inferred relationship | Existential restriction modifier |  |  | 
| Replacement of contact lens | Method | Surgical action | false | Inferred relationship | Existential restriction modifier | 2 |  | 
| Replacement of contact lens | Procedure site | Bone structure | false | Inferred relationship | Existential restriction modifier | 2 |  | 
| Replacement of contact lens | Using | Eye glasses, device | false | Inferred relationship | Existential restriction modifier |  |  | 
| Replacement of contact lens | Using | Contact lenses, device | false | Inferred relationship | Existential restriction modifier |  |  | 
| Replacement of contact lens | Direct device | Contact lenses, device | false | Inferred relationship | Existential restriction modifier | 1 |  | 
| Replacement of contact lens | Direct device | Visual appliance | false | Inferred relationship | Existential restriction modifier | 1 |  | 
| Replacement of contact lens | Method | Provision - action | false | Inferred relationship | Existential restriction modifier | 1 |  | 
| Replacement of contact lens | Procedure site | Bone structure of face | false | Inferred relationship | Existential restriction modifier |  |  | 
| Replacement of contact lens | Direct device | Appliance | false | Inferred relationship | Existential restriction modifier | 1 |  | 
| Replacement of contact lens | Direct device | External orbital prosthesis | false | Inferred relationship | Existential restriction modifier |  |  | 
| Replacement of contact lens | Method | Introduction - action | false | Inferred relationship | Existential restriction modifier |  |  | 
| Replacement of contact lens | Method | Fitting - action | false | Inferred relationship | Existential restriction modifier | 2 |  | 
| Replacement of contact lens | Procedure site | Structure of eye proper | false | Inferred relationship | Existential restriction modifier |  |  | 
| Replacement of contact lens | Method | Replacement - action | true | Inferred relationship | Existential restriction modifier | 1 |  | 
| Replacement of contact lens | Procedure site | Structure of visual system | false | Inferred relationship | Existential restriction modifier |  |  | 
| Replacement of contact lens | Is a | Removal of therapeutic device | false | Inferred relationship | Existential restriction modifier |  |  | 
| Replacement of contact lens | Is a | Replacement of device | true | Inferred relationship | Existential restriction modifier |  |  | 
| Replacement of contact lens | Procedure site | Eye region structure | false | Inferred relationship | Existential restriction modifier | 2 |  | 
| Replacement of contact lens | Method | Provision - action | false | Inferred relationship | Existential restriction modifier | 2 |  | 
| Replacement of contact lens | Procedure site | Eye region structure | false | Inferred relationship | Existential restriction modifier | 3 |  | 
| Replacement of contact lens | Is a | Replacement procedure | false | Inferred relationship | Existential restriction modifier |  |  | 
| Replacement of contact lens | Is a | Removal of eye prosthesis | false | Inferred relationship | Existential restriction modifier |  |  | 
| Replacement of contact lens | Direct device | Prosthesis, device | false | Inferred relationship | Existential restriction modifier | 4 |  | 
| Replacement of contact lens | Method | Provision - action | false | Inferred relationship | Existential restriction modifier | 2 |  | 
| Replacement of contact lens | Method | Provision - action | false | Inferred relationship | Existential restriction modifier | 1 |  | 
| Replacement of contact lens | Method | Prescription - action | false | Inferred relationship | Existential restriction modifier | 3 |  | 
| Replacement of contact lens | Procedure site | Structure of visual system | false | Inferred relationship | Existential restriction modifier |  |  | 
| Replacement of contact lens | Method | Provision - action | false | Inferred relationship | Existential restriction modifier | 1 |  | 
| Replacement of contact lens | Method | Provision - action | false | Inferred relationship | Existential restriction modifier | 2 |  | 
| Replacement of contact lens | Method | Provision - action | false | Inferred relationship | Existential restriction modifier | 2 |  | 
| Replacement of contact lens | Method | Provision - action | false | Inferred relationship | Existential restriction modifier | 1 |  | 
| Replacement of contact lens | Method | Provision - action | false | Inferred relationship | Existential restriction modifier | 1 |  | 
| Replacement of contact lens | Method | Provision - action | false | Inferred relationship | Existential restriction modifier | 2 |  | 
| Replacement of contact lens | Method | Provision - action | false | Inferred relationship | Existential restriction modifier | 4 |  | 
| Replacement of contact lens | Method | Provision - action | false | Inferred relationship | Existential restriction modifier | 1 |  | 
| Replacement of contact lens | Direct device | Contact lenses, device | false | Inferred relationship | Existential restriction modifier | 3 |  | 
| Replacement of contact lens | Direct device | Contact lenses, device | false | Inferred relationship | Existential restriction modifier | 2 |  | 
| Replacement of contact lens | Direct device | Contact lenses, device | false | Inferred relationship | Existential restriction modifier | 4 |  | 
| Replacement of contact lens | Method | Replacement - action | false | Inferred relationship | Existential restriction modifier | 1 |  | 
| Replacement of contact lens | Direct device | Contact lenses, device | false | Inferred relationship | Existential restriction modifier | 1 |  | 
| Replacement of contact lens | Is a | Appliance procedures | true | Inferred relationship | Existential restriction modifier |  |  | 
| Replacement of contact lens | Direct device | Contact lenses, device | true | Inferred relationship | Existential restriction modifier | 1 |  |