| Inbound Relationships | Type | Active | Source | Characteristic | Refinability | Group | 
| Aid to vision | Is a | True | Ophthalmological device | Inferred relationship | Existential restriction modifier |  | 
| Anterior chamber drainage tube | Is a | False | Ophthalmological device | Inferred relationship | Existential restriction modifier |  | 
| Ophthalmoscope | Is a | False | Ophthalmological device | Inferred relationship | Existential restriction modifier |  | 
| Indirect fundoscopy following mydriatic | Direct device | False | Ophthalmological device | Inferred relationship | Existential restriction modifier |  | 
| Eye bath | Is a | False | Ophthalmological device | Inferred relationship | Existential restriction modifier |  | 
| Eye shade | Is a | True | Ophthalmological device | Inferred relationship | Existential restriction modifier |  | 
| Glaucoma drainage device | Is a | False | Ophthalmological device | Inferred relationship | Existential restriction modifier |  | 
| Scleral buckle | Is a | True | Ophthalmological device | Inferred relationship | Existential restriction modifier |  | 
| Intravitreal implant | Is a | False | Ophthalmological device | Inferred relationship | Existential restriction modifier |  | 
| Auto inflation device | Is a | True | Ophthalmological device | Inferred relationship | Existential restriction modifier |  | 
| Bagolini striated glasses | Is a | False | Ophthalmological device | Inferred relationship | Existential restriction modifier |  | 
| Major amblyoscope | Is a | False | Ophthalmological device | Inferred relationship | Existential restriction modifier |  | 
| Ophthalmological implant | Is a | True | Ophthalmological device | Inferred relationship | Existential restriction modifier |  | 
| Ophthalmic prosthesis | Is a | True | Ophthalmological device | Inferred relationship | Existential restriction modifier |  | 
| Ophthalmic conformer | Is a | True | Ophthalmological device | Inferred relationship | Existential restriction modifier |  | 
| Scleral expansion band | Is a | True | Ophthalmological device | Inferred relationship | Existential restriction modifier |  | 
| Pupil expansion device | Is a | True | Ophthalmological device | Inferred relationship | Existential restriction modifier |  | 
| Ophthalmic tantalum clip | Is a | True | Ophthalmological device | Inferred relationship | Existential restriction modifier |  | 
| Disorders of prostheses and implants of the eye | Associated with | False | Ophthalmological device | Inferred relationship | Existential restriction modifier | 2 | 
| Ophthalmic ultrasound imaging system | Is a | True | Ophthalmological device | Inferred relationship | Existential restriction modifier |  | 
| Intraocular lens folder | Is a | True | Ophthalmological device | Inferred relationship | Existential restriction modifier |  | 
| Eye spud | Is a | True | Ophthalmological device | Inferred relationship | Existential restriction modifier |  | 
| Ophthalmic electrosurgical diathermy system generator, line-powered | Is a | True | Ophthalmological device | Inferred relationship | Existential restriction modifier |  | 
| Synoptophor, battery-powered | Is a | True | Ophthalmological device | Inferred relationship | Existential restriction modifier |  | 
| Ophthalmic cryosurgical system applicator, glaucoma | Is a | True | Ophthalmological device | Inferred relationship | Existential restriction modifier |  | 
| Vision training device, battery-powered | Is a | True | Ophthalmological device | Inferred relationship | Existential restriction modifier |  | 
| Electrooculograph electrode | Is a | True | Ophthalmological device | Inferred relationship | Existential restriction modifier |  | 
| Lens expressor | Is a | True | Ophthalmological device | Inferred relationship | Existential restriction modifier |  | 
| Amsler grid | Is a | False | Ophthalmological device | Inferred relationship | Existential restriction modifier |  | 
| Corneal trephine, single-use | Is a | False | Ophthalmological device | Inferred relationship | Existential restriction modifier |  | 
| Ophthalmic surgical irrigation handle, single-use | Is a | False | Ophthalmological device | Inferred relationship | Existential restriction modifier |  | 
| Ophthalmic cryosurgical system applicator, cataract | Is a | True | Ophthalmological device | Inferred relationship | Existential restriction modifier |  | 
| Visual acuity light box | Is a | True | Ophthalmological device | Inferred relationship | Existential restriction modifier |  | 
| Polatest | Is a | True | Ophthalmological device | Inferred relationship | Existential restriction modifier |  | 
| Phacoemulsification system handpiece tip, single-use | Is a | False | Ophthalmological device | Inferred relationship | Existential restriction modifier |  | 
| Ophthalmic knife | Is a | True | Ophthalmological device | Inferred relationship | Existential restriction modifier |  | 
| Eye magnet, powered | Is a | True | Ophthalmological device | Inferred relationship | Existential restriction modifier |  | 
| Vitreoretinal tamponade tubing | Is a | True | Ophthalmological device | Inferred relationship | Existential restriction modifier |  | 
| Lacrimal probe, reusable | Is a | False | Ophthalmological device | Inferred relationship | Existential restriction modifier |  | 
| Eye probe | Is a | True | Ophthalmological device | Inferred relationship | Existential restriction modifier |  | 
| Ocular plethysmograph | Is a | True | Ophthalmological device | Inferred relationship | Existential restriction modifier |  | 
| Spectacle lens foil | Is a | True | Ophthalmological device | Inferred relationship | Existential restriction modifier |  | 
| Eye movement analysis system | Is a | True | Ophthalmological device | Inferred relationship | Existential restriction modifier |  | 
| Vision training device, line-powered | Is a | True | Ophthalmological device | Inferred relationship | Existential restriction modifier |  | 
| Phacoemulsification system handpiece tip, reprocessed | Is a | False | Ophthalmological device | Inferred relationship | Existential restriction modifier |  | 
| Eyelid weight, external | Is a | True | Ophthalmological device | Inferred relationship | Existential restriction modifier |  | 
| Lacrimal dilator, reusable | Is a | False | Ophthalmological device | Inferred relationship | Existential restriction modifier |  | 
| Ophthalmic chair, electric | Is a | True | Ophthalmological device | Inferred relationship | Existential restriction modifier |  | 
| Tearscope | Is a | True | Ophthalmological device | Inferred relationship | Existential restriction modifier |  | 
| Lacrimal endoscope | Is a | True | Ophthalmological device | Inferred relationship | Existential restriction modifier |  | 
| Pupillometer, manual | Is a | True | Ophthalmological device | Inferred relationship | Existential restriction modifier |  | 
| Anterior eye segment analysis system | Is a | True | Ophthalmological device | Inferred relationship | Existential restriction modifier |  | 
| Eyelid thermal pulsation system control unit | Is a | True | Ophthalmological device | Inferred relationship | Existential restriction modifier |  | 
| Ophthalmic cryosurgical system applicator, retinal | Is a | True | Ophthalmological device | Inferred relationship | Existential restriction modifier |  | 
| Eye spud/needle | Is a | True | Ophthalmological device | Inferred relationship | Existential restriction modifier |  | 
| Diagnostic ophthalmic lens | Is a | True | Ophthalmological device | Inferred relationship | Existential restriction modifier |  | 
| Ophthalmic curette | Is a | True | Ophthalmological device | Inferred relationship | Existential restriction modifier |  | 
| Vitrectomy system handpiece | Is a | True | Ophthalmological device | Inferred relationship | Existential restriction modifier |  | 
| Ophthalmic electrosurgical diathermy system generator, battery-powered | Is a | True | Ophthalmological device | Inferred relationship | Existential restriction modifier |  | 
| Ophthalmic trocar | Is a | True | Ophthalmological device | Inferred relationship | Existential restriction modifier |  | 
| Donor cornea delivery set | Is a | False | Ophthalmological device | Inferred relationship | Existential restriction modifier |  | 
| Intraocular lens injector | Is a | True | Ophthalmological device | Inferred relationship | Existential restriction modifier |  | 
| Ophthalmic surgical drape | Is a | True | Ophthalmological device | Inferred relationship | Existential restriction modifier |  | 
| Diplopiometer | Is a | True | Ophthalmological device | Inferred relationship | Existential restriction modifier |  | 
| Ophthalmic scissors | Is a | True | Ophthalmological device | Inferred relationship | Existential restriction modifier |  | 
| Eyelid weight, implantable | Is a | True | Ophthalmological device | Inferred relationship | Existential restriction modifier |  | 
| Retinal prosthesis system visual processing unit | Is a | True | Ophthalmological device | Inferred relationship | Existential restriction modifier |  | 
| Ophthalmic cannulation set, reusable | Is a | False | Ophthalmological device | Inferred relationship | Existential restriction modifier |  | 
| Ophthalmic laser system | Is a | True | Ophthalmological device | Inferred relationship | Existential restriction modifier |  | 
| Felt tangent screen | Is a | True | Ophthalmological device | Inferred relationship | Existential restriction modifier |  | 
| Ophthalmic tonometer calibrator | Is a | True | Ophthalmological device | Inferred relationship | Existential restriction modifier |  | 
| Corneal topography system analyzer | Is a | True | Ophthalmological device | Inferred relationship | Existential restriction modifier |  | 
| Electroretinograph | Is a | True | Ophthalmological device | Inferred relationship | Existential restriction modifier |  | 
| Visual field plotter | Is a | True | Ophthalmological device | Inferred relationship | Existential restriction modifier |  | 
| Color-discrimination eye chart | Is a | True | Ophthalmological device | Inferred relationship | Existential restriction modifier |  | 
| Retinal prosthesis system clinical evaluation system | Is a | True | Ophthalmological device | Inferred relationship | Existential restriction modifier |  | 
| Ophthalmic knife test drum | Is a | True | Ophthalmological device | Inferred relationship | Existential restriction modifier |  | 
| Ocular peg/screw system | Is a | True | Ophthalmological device | Inferred relationship | Existential restriction modifier |  | 
| Pleoptophor | Is a | True | Ophthalmological device | Inferred relationship | Existential restriction modifier |  | 
| Ocular dressing | Is a | True | Ophthalmological device | Inferred relationship | Existential restriction modifier |  | 
| Corneal bur system, battery-powered | Is a | True | Ophthalmological device | Inferred relationship | Existential restriction modifier |  | 
| Prism, rotary | Is a | True | Ophthalmological device | Inferred relationship | Existential restriction modifier |  | 
| Ophthalmic ring | Is a | True | Ophthalmological device | Inferred relationship | Existential restriction modifier |  | 
| Scleral plug, single-use | Is a | False | Ophthalmological device | Inferred relationship | Existential restriction modifier |  | 
| Corneoscleral punch | Is a | True | Ophthalmological device | Inferred relationship | Existential restriction modifier |  | 
| Retinal prosthesis system | Is a | True | Ophthalmological device | Inferred relationship | Existential restriction modifier |  | 
| Spectacle lens | Is a | True | Ophthalmological device | Inferred relationship | Existential restriction modifier |  | 
| Multi-purpose digital medical camera lens, extraocular | Is a | True | Ophthalmological device | Inferred relationship | Existential restriction modifier |  | 
| Corneal trephine system handpiece | Is a | True | Ophthalmological device | Inferred relationship | Existential restriction modifier |  | 
| Pupillometer, line-powered | Is a | True | Ophthalmological device | Inferred relationship | Existential restriction modifier |  | 
| Corneal punch set | Is a | False | Ophthalmological device | Inferred relationship | Existential restriction modifier |  | 
| Ophthalmodiastimeter | Is a | True | Ophthalmological device | Inferred relationship | Existential restriction modifier |  | 
| Corneal trephine system | Is a | True | Ophthalmological device | Inferred relationship | Existential restriction modifier |  | 
| Electroretinograph electrode | Is a | True | Ophthalmological device | Inferred relationship | Existential restriction modifier |  | 
| Scleral buckling device | Is a | True | Ophthalmological device | Inferred relationship | Existential restriction modifier |  | 
| Corneal storage medium | Is a | True | Ophthalmological device | Inferred relationship | Existential restriction modifier |  | 
| Eye snare | Is a | True | Ophthalmological device | Inferred relationship | Existential restriction modifier |  | 
| Hess-screen | Is a | True | Ophthalmological device | Inferred relationship | Existential restriction modifier |  | 
| Ophthalmotropometer | Is a | True | Ophthalmological device | Inferred relationship | Existential restriction modifier |  | 
| Lens spoon | Is a | True | Ophthalmological device | Inferred relationship | Existential restriction modifier |  | 
| Nystagmus inducing optokinetic drum | Is a | True | Ophthalmological device | Inferred relationship | Existential restriction modifier |  |