title: Comparison between anterior corneal aberration and ocular aberration in laser refractive surgery.
abstract: OBJECTIVE
  To compare changes of anterior corneal aberration (Pentacam) and ocular aberration (aberrometer, LADARWave) after laser refractive surgery.
  
  
  METHODS
  Sixty-six eyes underwent laser refractive surgery and were retrospectively reviewed. Anterior corneal aberration and ocular aberration were measured by Pentacam and an aberrometer (LADARWave) respectively. Changes of root mean square (RMS) values of coma, spherical aberration, and total high order aberration (HOA) were evaluated before, 1 month, and 3 months after surgery
  
  
  RESULTS
  Ocular aberrations displayed low preoperative values, but after laser refractive surgery, anterior corneal aberration and ocular aberration increased equally. There were no statistically significant differences of internal optics aberration values (ocular aberration minus anterior corneal aberration) in coma, spherical aberration, and total HOA. Anterior corneal aberration and ocular aberration showed statistically significant correlations at 1 and 3 months after surgery.
  
  
  CONCLUSIONS
  Internal optics aberration compensated the anterior corneal aberration effectively before surgery, but the increase of anterior corneal aberration after laser refractive surgery exceeded the compensation of internal optics. As a result, anterior corneal aberration and ocular aberration increased equally. The correlation between anterior corneal aberration and ocular aberration after surgery was statistically significant due to the increased proportion of anterior corneal aberration in ocular aberration.
authors.affiliation: Department of Ophthalmology, College of Medicine, Dong-A University, Pusan, Korea.
authors.forename: Jong Mi
authors.initials: JM
authors.lastname: Lee
authors.forename: Dong Jun
authors.initials: DJ
authors.lastname: Lee
authors.forename: Woo Jin
authors.initials: WJ
authors.lastname: Jung
authors.forename: Woo Chan
authors.initials: WC
authors.lastname: Park
mesh_terms: D000328:Adult; D003315:Cornea / Q000503:physiopathology*; D019781:Corneal Topography; D006801:Humans; D054018:Lasers, Excimer / Q000627:therapeutic use*; D009216:Myopia / Q000601:surgery; D010781:Photography; D012029:Refraction, Ocular / Q000502:physiology*; D012030:Refractive Errors / Q000503:physiopathology*; D054140:Refractive Surgical Procedures; D012189:Retrospective Studies
references.citation: J Cataract Refract Surg. 1993;19 Suppl:155-65
references.pmid: 8450438
references.citation: Invest Ophthalmol Vis Sci. 2001 Dec;42(13):3349-56
references.pmid: 11726644
references.citation: J Refract Surg. 2001 Sep-Oct;17(5):S578-83
references.pmid: 11583234
references.citation: Am J Ophthalmol. 1999 Jan;127(1):1-7
references.pmid: 9932992
references.citation: J Opt Soc Am A Opt Image Sci Vis. 1995 Oct;12(10):2105-13
references.pmid: 7500201
references.citation: J Cataract Refract Surg. 2003 Aug;29(8):1507-13
references.pmid: 12954297
references.citation: J Vis. 2001;1(1):1-8
references.pmid: 12678609
references.citation: J Vis. 2004 Apr 16;4(4):262-71
references.pmid: 15134473
references.citation: J Refract Surg. 2001 Sep-Oct;17(5):S608-12
references.pmid: 11583241
references.citation: J Refract Surg. 2004 Sep-Oct;20(5):S565-9
references.pmid: 15523976
references.citation: Ophthalmology. 2005 Oct;112(10):1699-709
references.pmid: 16095700
references.citation: J Refract Surg. 2000 Sep-Oct;16(5):S554-9
references.pmid: 11019871
references.citation: J Refract Surg. 1996 Mar-Apr;12(3):417-21
references.pmid: 8705718
references.citation: J Cataract Refract Surg. 2001 Feb;27(2):201-7
references.pmid: 11226782