Praxis Medical Insights

Est. 2024 • Clinical Guidelines Distilled

Made possible by volunteer editors from the University of Calgary & University of Alberta

Last Updated: 11/30/2025

Diagnosis and Management of Age-Related Cataract

Differential Diagnosis

  • Central retinal artery occlusion is a critical vascular cause to exclude, characterized by sudden painless vision loss, cherry-red spot on fundus, and requires immediate stroke center referral, as recommended by the American Heart Association 1
  • Giant cell arteritis must be considered in patients over 50 years with vision loss, associated with jaw claudication, temporal tenderness, and ESR >60 mm/h, according to the American College of Rheumatology 2
  • Retinal vein occlusion is less acute than arterial occlusion, with retinal hemorrhages visible on fundus exam, as described by the American Academy of Ophthalmology 2
  • Optic neuritis can be painless in 8% of cases, but typically has a more acute onset, associated with demyelinating disease, as noted by the National Multiple Sclerosis Society 2

Management Approach

  • Intraocular pressure measurement is essential to exclude glaucoma, as recommended by the American Academy of Ophthalmology 3
  • Assessment of posterior segment is crucial to rule out coexisting retinal pathology, as emphasized by the American Academy of Ophthalmology 3
  • Always assess for giant cell arteritis in patients over 50 years with any vision loss, even if cataract is present, as delayed treatment causes irreversible blindness, as warned by the American College of Rheumatology 2