| Inbound Relationships | Type | Active | Source | Characteristic | Refinability | Group | 
| Glass eye, device | Is a | True | Ocular prosthesis | Inferred relationship | Existential restriction modifier |  | 
| Contact shell | Is a | True | Ocular prosthesis | Inferred relationship | Existential restriction modifier |  | 
| Plastic prosthetic eye | Is a | True | Ocular prosthesis | Inferred relationship | Existential restriction modifier |  | 
| Provision of artificial eye | Direct device | False | Ocular prosthesis | Inferred relationship | Existential restriction modifier | 1 | 
| Provision of ocular cosmetic shell | Direct device | False | Ocular prosthesis | Inferred relationship | Existential restriction modifier | 1 | 
| Insertion of artificial eye | Direct device | False | Ocular prosthesis | Inferred relationship | Existential restriction modifier | 1 | 
| Provision of removable artificial eye | Direct device | False | Ocular prosthesis | Inferred relationship | Existential restriction modifier | 1 | 
| Ocular prosthetic service | Direct device | True | Ocular prosthesis | Inferred relationship | Existential restriction modifier | 1 | 
| Prescribing contact lens for aphakia, unilateral | Direct device | False | Ocular prosthesis | Inferred relationship | Existential restriction modifier |  | 
| Prescribing contact lens for aphakia, bilateral | Direct device | False | Ocular prosthesis | Inferred relationship | Existential restriction modifier |  | 
| Removal of eye prosthesis | Direct device | False | Ocular prosthesis | Inferred relationship | Existential restriction modifier | 1 | 
| Prescribing, fitting and supply of ocular prosthesis | Direct device | False | Ocular prosthesis | Inferred relationship | Existential restriction modifier | 1 | 
| Prescribing contact lens for aphakia | Direct device | False | Ocular prosthesis | Inferred relationship | Existential restriction modifier |  | 
| Prescribing, fitting and supervision of ocular prosthesis | Direct device | False | Ocular prosthesis | Inferred relationship | Existential restriction modifier |  | 
| Repair and refitting spectacles | Direct device | False | Ocular prosthesis | Inferred relationship | Existential restriction modifier |  | 
| Provision of artificial eye | Direct device | False | Ocular prosthesis | Inferred relationship | Existential restriction modifier | 2 | 
| Provision of artificial eye | Direct device | False | Ocular prosthesis | Inferred relationship | Existential restriction modifier | 4 | 
| Provision of artificial eye | Direct device | False | Ocular prosthesis | Inferred relationship | Existential restriction modifier | 3 | 
| Provision of ocular cosmetic shell | Direct device | False | Ocular prosthesis | Inferred relationship | Existential restriction modifier | 1 | 
| Provision of ocular cosmetic shell | Direct device | False | Ocular prosthesis | Inferred relationship | Existential restriction modifier | 2 | 
| Provision of ocular cosmetic shell | Direct device | False | Ocular prosthesis | Inferred relationship | Existential restriction modifier | 3 | 
| Provision of removable artificial eye | Direct device | False | Ocular prosthesis | Inferred relationship | Existential restriction modifier | 2 | 
| Provision of removable artificial eye | Direct device | False | Ocular prosthesis | Inferred relationship | Existential restriction modifier | 1 | 
| Provision of removable artificial eye | Direct device | False | Ocular prosthesis | Inferred relationship | Existential restriction modifier | 3 | 
| Prescribing, fitting and supply of ocular prosthesis | Direct device | False | Ocular prosthesis | Inferred relationship | Existential restriction modifier | 1 | 
| Prescribing, fitting and supply of ocular prosthesis | Direct device | False | Ocular prosthesis | Inferred relationship | Existential restriction modifier | 2 | 
| Prescribing, fitting and supply of ocular prosthesis | Direct device | False | Ocular prosthesis | Inferred relationship | Existential restriction modifier | 3 | 
| Prescribing, fitting and supervision of ocular prosthesis | Direct device | False | Ocular prosthesis | Inferred relationship | Existential restriction modifier | 1 | 
| Prescribing, fitting and supervision of ocular prosthesis | Direct device | False | Ocular prosthesis | Inferred relationship | Existential restriction modifier | 2 | 
| Provision of artificial eye | Direct device | False | Ocular prosthesis | Inferred relationship | Existential restriction modifier | 2 | 
| Provision of artificial eye | Direct device | False | Ocular prosthesis | Inferred relationship | Existential restriction modifier | 3 | 
| Provision of artificial eye | Direct device | False | Ocular prosthesis | Inferred relationship | Existential restriction modifier | 4 | 
| Provision of ocular cosmetic shell | Direct device | False | Ocular prosthesis | Inferred relationship | Existential restriction modifier | 2 | 
| Provision of ocular cosmetic shell | Direct device | False | Ocular prosthesis | Inferred relationship | Existential restriction modifier | 3 | 
| Provision of ocular cosmetic shell | Direct device | False | Ocular prosthesis | Inferred relationship | Existential restriction modifier | 1 | 
| Provision of removable artificial eye | Direct device | False | Ocular prosthesis | Inferred relationship | Existential restriction modifier | 2 | 
| Provision of removable artificial eye | Direct device | False | Ocular prosthesis | Inferred relationship | Existential restriction modifier | 3 | 
| Provision of removable artificial eye | Direct device | False | Ocular prosthesis | Inferred relationship | Existential restriction modifier | 1 | 
| Prescribing, fitting and supply of ocular prosthesis | Direct device | False | Ocular prosthesis | Inferred relationship | Existential restriction modifier | 1 | 
| Prescribing, fitting and supply of ocular prosthesis | Direct device | False | Ocular prosthesis | Inferred relationship | Existential restriction modifier | 2 | 
| Prescribing, fitting and supply of ocular prosthesis | Direct device | False | Ocular prosthesis | Inferred relationship | Existential restriction modifier | 3 | 
| Prescribing, fitting and supervision of ocular prosthesis | Direct device | False | Ocular prosthesis | Inferred relationship | Existential restriction modifier | 1 | 
| Prescribing, fitting and supervision of ocular prosthesis | Direct device | False | Ocular prosthesis | Inferred relationship | Existential restriction modifier | 2 | 
| Provision of artificial eye | Direct device | False | Ocular prosthesis | Inferred relationship | Existential restriction modifier | 4 | 
| Provision of artificial eye | Direct device | False | Ocular prosthesis | Inferred relationship | Existential restriction modifier | 1 | 
| Provision of artificial eye | Direct device | False | Ocular prosthesis | Inferred relationship | Existential restriction modifier | 3 | 
| Provision of ocular cosmetic shell | Direct device | True | Ocular prosthesis | Inferred relationship | Existential restriction modifier | 3 | 
| Provision of ocular cosmetic shell | Direct device | True | Ocular prosthesis | Inferred relationship | Existential restriction modifier | 4 | 
| Provision of removable artificial eye | Direct device | False | Ocular prosthesis | Inferred relationship | Existential restriction modifier | 1 | 
| Provision of removable artificial eye | Direct device | False | Ocular prosthesis | Inferred relationship | Existential restriction modifier | 3 | 
| Provision of removable artificial eye | Direct device | False | Ocular prosthesis | Inferred relationship | Existential restriction modifier | 4 | 
| Prescribing, fitting and supply of ocular prosthesis | Direct device | True | Ocular prosthesis | Inferred relationship | Existential restriction modifier | 1 | 
| Prescribing, fitting and supply of ocular prosthesis | Direct device | True | Ocular prosthesis | Inferred relationship | Existential restriction modifier | 2 | 
| Prescribing, fitting and supply of ocular prosthesis | Direct device | True | Ocular prosthesis | Inferred relationship | Existential restriction modifier | 3 | 
| Prescribing, fitting and supervision of ocular prosthesis | Direct device | True | Ocular prosthesis | Inferred relationship | Existential restriction modifier | 1 | 
| Prescribing, fitting and supervision of ocular prosthesis | Direct device | True | Ocular prosthesis | Inferred relationship | Existential restriction modifier | 2 | 
| Provision of artificial eye | Direct device | True | Ocular prosthesis | Inferred relationship | Existential restriction modifier | 1 | 
| Insertion of artificial eye | Direct device | True | Ocular prosthesis | Inferred relationship | Existential restriction modifier | 1 | 
| Removal of eye prosthesis | Direct device | True | Ocular prosthesis | Inferred relationship | Existential restriction modifier | 1 | 
| Provision of removable artificial eye | Direct device | True | Ocular prosthesis | Inferred relationship | Existential restriction modifier | 1 | 
| Cleaning eye prosthesis | Direct device | True | Ocular prosthesis | Inferred relationship | Existential restriction modifier | 1 | 
| Washing eye prosthesis | Direct device | True | Ocular prosthesis | Inferred relationship | Existential restriction modifier | 1 | 
| Soaking eye prosthesis | Direct device | True | Ocular prosthesis | Inferred relationship | Existential restriction modifier | 1 | 
| Implantable ocular prosthesis | Is a | True | Ocular prosthesis | Inferred relationship | Existential restriction modifier |  | 
| Eye valve | Is a | True | Ocular prosthesis | Inferred relationship | Existential restriction modifier |  | 
| Scleral buckling device | Is a | False | Ocular prosthesis | Inferred relationship | Existential restriction modifier |  | 
| Eye muscle sleeve | Is a | False | Ocular prosthesis | Inferred relationship | Existential restriction modifier |  | 
| Manual intraocular lens injector, reusable | Is a | False | Ocular prosthesis | Inferred relationship | Existential restriction modifier |  | 
| Intraocular lens folder | Is a | False | Ocular prosthesis | Inferred relationship | Existential restriction modifier |  | 
| Manual intraocular lens injector, single-use | Is a | False | Ocular prosthesis | Inferred relationship | Existential restriction modifier |  | 
| Orbital sphere implant introducer | Is a | False | Ocular prosthesis | Inferred relationship | Existential restriction modifier |  | 
| Retinal detachment implant | Is a | True | Ocular prosthesis | Inferred relationship | Existential restriction modifier |  | 
| Retinal tamponade medium, postoperative | Is a | False | Ocular prosthesis | Inferred relationship | Existential restriction modifier |  | 
| Retinal tamponade medium, intraoperative | Is a | False | Ocular prosthesis | Inferred relationship | Existential restriction modifier |  | 
| Retinal tamponade medium, perioperative | Is a | False | Ocular prosthesis | Inferred relationship | Existential restriction modifier |  | 
| Intraocular lens-insertion cartridge | Is a | False | Ocular prosthesis | Inferred relationship | Existential restriction modifier |  | 
| Intraocular lens web-based calculator | Is a | False | Ocular prosthesis | Inferred relationship | Existential restriction modifier |  | 
| Line-powered intraocular lens injector, single-use | Is a | False | Ocular prosthesis | Inferred relationship | Existential restriction modifier |  | 
| Line-powered intraocular lens injector, reusable | Is a | False | Ocular prosthesis | Inferred relationship | Existential restriction modifier |  | 
| Scleral shell | Is a | True | Ocular prosthesis | Inferred relationship | Existential restriction modifier |  | 
| Eyeball prosthesis, standard | Is a | True | Ocular prosthesis | Inferred relationship | Existential restriction modifier |  | 
| Eyeball prosthesis, custom-made | Is a | True | Ocular prosthesis | Inferred relationship | Existential restriction modifier |  | 
| Eyeball prosthesis lubricant | Is a | False | Ocular prosthesis | Inferred relationship | Existential restriction modifier |  | 
| Retinal prosthesis system camera spectacles | Is a | False | Ocular prosthesis | Inferred relationship | Existential restriction modifier |  | 
| Retinal prosthesis system radio-frequency coil | Is a | False | Ocular prosthesis | Inferred relationship | Existential restriction modifier |  | 
| Retinal prosthesis system visual processing unit | Is a | False | Ocular prosthesis | Inferred relationship | Existential restriction modifier |  | 
| Retinal prosthesis system clinical evaluation system | Is a | False | Ocular prosthesis | Inferred relationship | Existential restriction modifier |  | 
| Capsular tension ring inserter | Is a | False | Ocular prosthesis | Inferred relationship | Existential restriction modifier |  | 
| Artificial eyeball iris prosthesis | Is a | True | Ocular prosthesis | Inferred relationship | Existential restriction modifier |  | 
| Adjustment of artificial eye | Direct device | True | Ocular prosthesis | Inferred relationship | Existential restriction modifier | 1 |