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Cataract

Yasir Ahmed, MD and Ingrid U. Scott, MD, MPH Reviewed 06/2019
 


BASICS

DESCRIPTION

  • A cataract is any opacity or discoloration of the lens, localized or generalized; the term is usually reserved for changes that affect visual acuity (1),(2).

  • Etymology: from Latin cat...

DIAGNOSIS

HISTORY

  • Age-related cataract:

    • Decreased visual acuity, blurred vision, distortion, or “ghosting” of images (1),(2)

    • Problems with visual acuity in any lighting condition

    • Falls or accidents; injur...

TREATMENT

  • Outpatient (usually)

  • ~1.64 million cataract extractions in the United States yearly (3),(4)

GENERAL MEASURES

Eye protection from UV light 

MEDICATION

There are currently no medications to prevent...

ONGOING CARE

FOLLOW-UP RECOMMENDATIONS

Patient Monitoring

  • As cataract progresses, an ophthalmologist may change spectacle correction to maintain vision. When this is no longer successful and interferes ...

REFERENCES

1
Asbell PA, Dualan I, Mindel J, et al. Age-related cataract. Lancet.  2005;365(9459):599–609. [View Abstract on OvidMedline]
2
Abraham AG, Condon NG, West Gower E. The new epidemiology o...

SEE ALSO

  • Floppy Iris Syndrome

  • Algorithm: Cataracts

CODES

ICD10

  • H26.9 Unspecified cataract

  • H25.9 Unspecified age-related cataract

  • Q12.0 Congenital cataract

  • H26.40 Unspecified secondary cataract

  • H26.32 Drug-induced cataract, left eye

  • H26.491 Other secondary c...

CLINICAL PEARLS

  • Cataracts are the leading cause of blindness worldwide; 90% are age-related.

  • Primary indication for cataract surgery is visual impairment leading to significant lifestyle changes for th...

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