| Inbound Relationships | Type | Active | Source | Characteristic | Refinability | Group | 
| Fitting of contact lens | Direct device | True | Contact lenses, device | Inferred relationship | Existential restriction modifier | 1 | 
| Dispensing of contact lens | Direct device | True | Contact lenses, device | Inferred relationship | Existential restriction modifier | 1 | 
| Prescription of contact lens | Direct device | True | Contact lenses, device | Inferred relationship | Existential restriction modifier | 1 | 
| Contact lens submitted as specimen | Specimen source identity | False | Contact lenses, device | Inferred relationship | Existential restriction modifier | 1 | 
| Unresolved contact lens related keratitis | Associated with | True | Contact lenses, device | Inferred relationship | Existential restriction modifier | 1 | 
| Contact lens inserter/remover | Is a | False | Contact lenses, device | Inferred relationship | Existential restriction modifier |  | 
| Soft contact lens | Is a | True | Contact lenses, device | Inferred relationship | Existential restriction modifier |  | 
| Decorative contact lens | Is a | True | Contact lenses, device | Inferred relationship | Existential restriction modifier |  | 
| Corrective contact lens | Is a | True | Contact lenses, device | Inferred relationship | Existential restriction modifier |  | 
| Contact lens radius gauge | Is a | False | Contact lenses, device | Inferred relationship | Existential restriction modifier |  | 
| Contact lens case | Is a | False | Contact lenses, device | Inferred relationship | Existential restriction modifier |  | 
| Contact lens thermal cleaner, line-powered | Is a | False | Contact lenses, device | Inferred relationship | Existential restriction modifier |  | 
| Manually-adjusted lensmeter, line-powered | Is a | False | Contact lenses, device | Inferred relationship | Existential restriction modifier |  | 
| Trial lens frame | Is a | False | Contact lenses, device | Inferred relationship | Existential restriction modifier |  | 
| Trial lens set | Is a | False | Contact lenses, device | Inferred relationship | Existential restriction modifier |  | 
| Contact lens care kit | Is a | False | Contact lenses, device | Inferred relationship | Existential restriction modifier |  | 
| Manually-adjusted lensmeter, battery-powered | Is a | False | Contact lenses, device | Inferred relationship | Existential restriction modifier |  | 
| Automated lensmeter | Is a | False | Contact lenses, device | Inferred relationship | Existential restriction modifier |  | 
| Contact lens thermal cleaner, battery-powered | Is a | False | Contact lenses, device | Inferred relationship | Existential restriction modifier |  | 
| Contact lens agitation cleaning system, ultrasonic | Is a | False | Contact lenses, device | Inferred relationship | Existential restriction modifier |  | 
| Contact lens agitation cleaning system, mechanical | Is a | False | Contact lenses, device | Inferred relationship | Existential restriction modifier |  | 
| Vitrectomy sutureless lens connecting band | Is a | False | Contact lenses, device | Inferred relationship | Existential restriction modifier |  | 
| Vitrectomy sutureless lens holding ring | Is a | False | Contact lenses, device | Inferred relationship | Existential restriction modifier |  | 
| Eye irrigation solution | Is a | False | Contact lenses, device | Inferred relationship | Existential restriction modifier |  | 
| Disorder of left cornea caused by contact lens | Causative agent | True | Contact lenses, device | Inferred relationship | Existential restriction modifier | 1 | 
| Disorder of bilateral corneas caused by contact lens | Causative agent | True | Contact lenses, device | Inferred relationship | Existential restriction modifier | 1 | 
| Disorder of bilateral corneas caused by contact lens | Causative agent | True | Contact lenses, device | Inferred relationship | Existential restriction modifier | 2 | 
| Disorder of right cornea caused by contact lens | Causative agent | True | Contact lenses, device | Inferred relationship | Existential restriction modifier | 1 | 
| Contact lens related corneal abrasion | Causative agent | True | Contact lenses, device | Inferred relationship | Existential restriction modifier | 1 | 
| Giant papillary conjunctivitis caused by contact lens | Causative agent | True | Contact lenses, device | Inferred relationship | Existential restriction modifier | 1 | 
| Contact lens intolerance | Associated with | True | Contact lenses, device | Inferred relationship | Existential restriction modifier | 2 | 
| Superficial contact lens-induced peripheral corneal vascularization | Causative agent | True | Contact lenses, device | Inferred relationship | Existential restriction modifier | 1 | 
| Glaucoma caused by contact lens | Causative agent | True | Contact lenses, device | Inferred relationship | Existential restriction modifier | 1 | 
| Corneal edema caused by wearing of contact lenses | Causative agent | True | Contact lenses, device | Inferred relationship | Existential restriction modifier | 1 | 
| Contact lens overwear syndrome | Causative agent | True | Contact lenses, device | Inferred relationship | Existential restriction modifier | 1 | 
| Edema of cornea of left eye caused by wearing of contact lens | Causative agent | True | Contact lenses, device | Inferred relationship | Existential restriction modifier | 1 | 
| Edema of cornea of right eye caused by wearing of contact lens | Causative agent | True | Contact lenses, device | Inferred relationship | Existential restriction modifier | 1 | 
| Edema of cornea of bilateral eyes caused by wearing of contact lenses | Causative agent | True | Contact lenses, device | Inferred relationship | Existential restriction modifier | 1 | 
| Edema of cornea of bilateral eyes caused by wearing of contact lenses | Causative agent | True | Contact lenses, device | Inferred relationship | Existential restriction modifier | 2 | 
| Infectious corneal infiltrates caused by contact lens | Associated with | True | Contact lenses, device | Inferred relationship | Existential restriction modifier | 3 | 
| Contact lens submitted as specimen | Specimen substance | True | Contact lenses, device | Inferred relationship | Existential restriction modifier | 1 | 
| Contact lens related red eye | Causative agent | True | Contact lenses, device | Inferred relationship | Existential restriction modifier | 1 | 
| Contact lens-associated corneal infiltrates due to hypoxia | Associated with | True | Contact lenses, device | Inferred relationship | Existential restriction modifier | 3 |