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Changes in the accommodation-convergence relationship after the Artisan phakic intraocular lens implantation for myopic patients

 Ik Hee Ryu  ;  Jinu Han  ;  Hyung Keun Lee  ;  Jin Kook Kim  ;  Sueng-Han Han 
 Korean Journal of Ophthalmology, Vol.28(2) : 150-154, 2014 
Journal Title
 Korean Journal of Ophthalmology 
Issue Date
Accommodation, Ocular* ; Adult ; Convergence, Ocular* ; Female ; Follow-Up Studies ; Humans ; Lens Implantation, Intraocular/methods* ; Male ; Myopia/diagnosis* ; Myopia/surgery* ; Phakic Intraocular Lenses* ; Postoperative Period ; Prospective Studies ; Refractive Surgical Procedures/methods ; Treatment Outcome ; Visual Acuity ; Young Adult
Convergence ; Ocular accommodation ; Phakic intraocular lenses
PURPOSE: To evaluate the change of accommodation-convergence parameters after implantation of Artisan phakic intraocular lens (PIOL). METHODS: Prospective study for the patients with the Artisan PIOL implantation was performed. A total of 37 patients (3 males and 34 females) enrolled the study. Preoperatively, convergence amplitude, the stimulus accommodative convergence per unit of accommodation (AC/A) ratio and the near point of convergence (NPC) were evaluated. After the Artisan PIOL implantation, the identical evaluations were repeated at 1 week, 1, 3, and 6 months after the surgery. RESULTS: Mean age was 24.3 ± 4.8 years old, and preoperative refractive error was -8.92 ± 4.13 diopters (D). After the implantation, mean refractive errors significantly decreased to within ±1.00 D, and noticeable complications were not found. The convergence amplitude and the stimulus AC/A ratio increased 1 month after the surgery, but progressively stabilized afterward to near preoperative values. NPC didn't show any significant change over follow-up period up to 6 months. CONCLUSIONS: These results regarding implantation of the Artisan PIOL revealed the increase of accommodation-convergence relationship within first 1 month after the surgery, but progressive stabilization was noted during follow-up periods.
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Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Ophthalmology (안과학교실) > 1. Journal Papers
Yonsei Authors
Lee, Hyung Keun(이형근) ORCID logo https://orcid.org/0000-0002-1123-2136
Han, Seung Han(한승한) ORCID logo https://orcid.org/0000-0001-8972-4790
Han, Jinu(한진우) ORCID logo https://orcid.org/0000-0002-8607-6625
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