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contact lens (CL, CTL)

Indications: - refractive error (myopia, hyperopia)) - astigmatism Complications: - bacterial keratitis - Staphylococcal species - P aeruginosa - Streptococcus pneumoniae - Moraxella - fungal keratitis - Fusarium, Aspergillus, & Candida cause the great majority of fungal keratitis - Fusarium solani is the species implicated in a recent incidence of contact lens wearers experiencing a fungal keratitis - corneal ulcer Management: 1) wash hands with soap & water prior to handling lenses 2) clean lens case after each use 3) replace lens case after 3-6 months 4) remove contact lens overnight [3] Notes: - FDA approves 1st contact lens with light-adaptive technology [4]

General

lens device (medical device)

References

  1. Prescriber's Letter 13(5): 2006 Detail-Document#: 220507 Fungal keratitis infections related to contact lens use (subscription needed) http://www.prescribersletter.com
  2. eMedicine: Corneal Ulceration and Ulcerative Keratitis http://www.emedicine.com/emerg/topic115.htm
  3. Collier SA et al Estimated Burden of Keratitis - United States, 2010 MMWR. Weekly. November 14, 2014 / 63(45);1027-1030 http://www.cdc.gov/mmwr/preview/mmwrhtml/mm6345a3.htm
  4. FDA News Release. April 10, 2018 FDA clears first contact lens with light-adaptive technology. https://www.fda.gov/NewsEvents/Newsroom/PressAnnouncements/ucm604263.htm