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Author (up) Landers, J.A.; Tamblyn, D.; Perriam, D. url  doi
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  Title Effect of a blue-light-blocking intraocular lens on the quality of sleep Type Journal Article
  Year 2009 Publication Journal of Cataract and Refractive Surgery Abbreviated Journal J Cataract Refract Surg  
  Volume 35 Issue 1 Pages 83-88  
  Keywords Aged; Aged, 80 and over; Circadian Rhythm/physiology; Female; Humans; *Lens Implantation, Intraocular; *Lenses, Intraocular; Light; Male; *Phacoemulsification; Prosthesis Design; Questionnaires; Sleep/*physiology; blue light; sleep  
  Abstract PURPOSE: To evaluate whether implantation of a blue-light-blocking intraocular lens (IOL) affects sleep quality. SETTING: Repatriation General Hospital, Adelaide, Australia. METHODS: This study comprised patients who had bilateral cataract surgery during the preceding 12 months with implantation of a conventional SI40NB IOL or an AcrySof Natural SN60WF blue-light-blocking IOL. Patients were contacted by telephone at least 6 months after second-eye surgery, and the Pittsburgh Sleep Quality Index (PSQI) questionnaire was administered. Results were compared between groups. RESULTS: Of the 49 patients, 31 received conventional IOLs and 18, blue-light-blocking IOLs. The mean age of the patients was 80 years +/- 8.1 (SD). The median PSQI score was 6 (interquartile range 3 to 8). There were no statistically significant differences in PSQI scores between the 2 IOL groups (P = .65). This remained true after adjustment for sex, age, medication, and time since surgery. CONCLUSION: The blue-light-blocking IOL had no effect on the sleep quality of patients, indicating that these IOLs might serve as an alternative to conventional IOLs without a detrimental effect on circadian rhythm.  
  Address Department of Ophthalmology, Repatriation General Hospital, Adelaide, Australia. john.landers@bigpond.com  
  Corporate Author Thesis  
  Publisher Place of Publication Editor  
  Language English Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 0886-3350 ISBN Medium  
  Area Expedition Conference  
  Notes PMID:19101429 Approved no  
  Call Number IDA @ john @ Serial 288  
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