#presbyopia  farsightedness resulting from a reduced ability to focus caused by loss of elasticity of the crystalline lens with age
  supertype:  hyperopia__hypermetropia__hypermetropy__farsightedness__longsightedness__longsightednes  abnormal condition in which vision for distant objects is better than for near objects
     supertype:  ametropia  (ophthalmology) faulty refraction of light rays in the eye as in astigmatism or myopia
        supertype:  visual_impairment__visual_defect__vision_defect__visual_disorder  impairment of the sense of sight
           supertype:  disability__disablement__handicap__impairment  the condition of being unable to perform as a consequence of physical or mental unfitness; "reading disability"; "hearing impairment"
              supertype:  poor_shape__unfitness__unfitnes__badcondition  poor physical condition; being out of shape or out of condition
                 supertype:  ill_health__illhealth__unhealthiness__unhealthines__healthproblem  a state in which you are unable to function normally and without pain
                    supertype:  physiological_state__physiologicalstate__physiological_condition__physiologicalcondition  the condition of the body or bodily functions
                       supertype:  condition.state__status  a condition or state at a particular time: "a condition (or state) of disrepair"; "the current status of the arms negotiations"
                          supertype:  state  the way something is with respect to its main attributes; "the current state of knowledge"; "his state of health"; "in a weak financial state"
                             supertype:  state  situation that is not a process
                                supertype:  situation  something that "occurs" in a real/imaginary region of time and space
                                   supertype:  thing__something___T__t___3D_or_4D_thing_or_anything_else  any category (type or individual) is instance of this type; any type is also a subtype of this type
                             supertype:  process__proces__physicalsituation  intuitively, the class of things that happen and have temporal parts or stages; examples include extended events like a football match or a race, actions like pursuing and reading, and biological processes; sumo#process is not identical to pm#situation because an instance of pm#situation is not necessarily an instance of sumo#physical
                                supertype:  situation  something that "occurs" in a real/imaginary region of time and space
                                supertype:  process_or_process_description
                                   supertype:  processing_thing
                                      supertype:  thing_playing_some_role  category to classify things according to roles/viewpoints; classification under this category is application-dependant
                                         supertype:  thing__something___T__t___3D_or_4D_thing_or_anything_else  any category (type or individual) is instance of this type; any type is also a subtype of this type
                                supertype:  physical__physical_thing  an entity that has a location in space-time; locations are themselves understood to have a location in space-time; click here for more details on the identical category sowa#physical_thing
                                   supertype:  thing__something___T__t___3D_or_4D_thing_or_anything_else  any category (type or individual) is instance of this type; any type is also a subtype of this type

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