Ophthalmology Book

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Contact Lens

Aka: Contact Lens, Displaced Contact Lens
  1. Management: Displaced Contact Lens
    1. Reassurance that lens will not travel retrobulbar
    2. Find the lens
      1. Have patient look up or down as lids are held
    3. Move off Cornea to Sclera
    4. Remove the lens with irrigation or with plunger
    5. Replace the lens on the Cornea
    6. Fluorescein will stain lens permanently but may ease finding it
  2. Complications: Infection
    1. Risk Factors
      1. Overnight Contact Lens wear (20 fold increased risk)
      2. Tap water used to rinse Contact Lenses
      3. Water exposure while wearing Contact Lenses (swimming, showering, hot tub)
    2. Infectious Keratitis Causes
      1. Acanthamoeba
      2. Pseudomonas (esp. soft cosmetic contacts)
      3. Mixed Bacteria
      4. Fungal infections
      5. Herpes Simplex Virus
    3. Management
      1. Treat Contact Lens induced Bacterial Conjunctivitis or Keratitis with topical Fluoroquinolone or Aminoglycoside
    4. Resources
      1. CDC Contact Lens Risks for Infection
        1. http://www.cdc.gov/mmwr/preview/mmwrhtml/mm6432a2.htm
  3. References
    1. Pflipsen (2016) Am Fam Physician 93(12): 991-8 [PubMed]

Contact Lenses (C0009836)

Definition (UMD) Ophthalmic lens made of glass or plastics, designed to be worn on the front surface of the eye, used for the correction of refractive errors, therapeutic, diagnostic, or cosmetic purposes.
Definition (CSP) thin lens designed to fit over the cornea and usually worn to correct defects in vision.
Definition (MSH) Lenses designed to be worn on the front surface of the eyeball. (UMDNS, 1999)
Concepts Medical Device (T074)
MSH D003261
SnomedCT 57368009, 330891007
LNC LP29918-7, MTHU013784, LA14750-6
English Lenses, Contact, Contact lenses - [no drugs here], Contact Lens, CONTACT LENS @ @ EACH, CONTACT LENS EACH, CL - Contact lens, Contact lenses, device, CONTACT LENS MISCELL EACH, CONTACT LENS@@MISCELL@EACH, contact lenses, contact lens, Contact lenses - [no drugs here] (physical object), Contact lenses, Contact lens, Contact lenses, device (physical object), Contact Lenses
Spanish lentes de contacto, dispositivo (objeto físico), lentes de contacto, dispositivo, lentes de contacto (objeto físico), lentes de contacto, lentillas, Lentes de Contacto
Swedish Kontaktlinser
Czech kontaktní čočky
Finnish Piilolasit
Russian KONTAKTNYE LINZY, LINZY KONTAKTNYE, КОНТАКТНЫЕ ЛИНЗЫ, ЛИНЗЫ КОНТАКТНЫЕ
Japanese コンタクトレンズ, コンタクト・レンズ, レンズ-コンタクト
French Lentilles de contact, Lentilles cornéennes, Verres de contact
Croatian KONTAKTNE LEĆE
Polish Soczewki kontaktowe, Szkła kontaktowe
Norwegian Kontaktlinser
German Kontaktlinsen, Linsen, Kontakt-
Italian Lenti a contatto
Dutch Contactlens, Contactlenzen
Portuguese Lentes de Contato
Sources
Derived from the NIH UMLS (Unified Medical Language System)


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