April 2010
Volume 51, Issue 13
Free
ARVO Annual Meeting Abstract  |   April 2010
Stabilization of Refraction and Corneal Swelling After Cataract Surgery
Author Affiliations & Notes
  • V. De-Juan
    IOBA Eye Institute, University of Valladolid, Valladolid, Spain
  • J. Herreras
    IOBA Eye Institute, University of Valladolid, Valladolid, Spain
  • I. Perez
    IOBA Eye Institute, University of Valladolid, Valladolid, Spain
  • A. Morejon
    IOBA Eye Institute, University of Valladolid, Valladolid, Spain
  • A. del Rio
    IOBA Eye Institute, University of Valladolid, Valladolid, Spain
  • I. Fernandez
    IOBA Eye Institute, University of Valladolid, Valladolid, Spain
  • G. Rodriguez
    IOBA Eye Institute, University of Valladolid, Valladolid, Spain
  • R. Martin
    IOBA Eye Institute, University of Valladolid, Valladolid, Spain
  • Footnotes
    Commercial Relationships  V. De-Juan, None; J. Herreras, None; I. Perez, None; A. Morejon, None; A. del Rio, None; I. Fernandez, None; G. Rodriguez, None; R. Martin, None.
  • Footnotes
    Support  FIS Spain - Ministry of Health Grant
Investigative Ophthalmology & Visual Science April 2010, Vol.51, 3941. doi:
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      V. De-Juan, J. Herreras, I. Perez, A. Morejon, A. del Rio, I. Fernandez, G. Rodriguez, R. Martin; Stabilization of Refraction and Corneal Swelling After Cataract Surgery. Invest. Ophthalmol. Vis. Sci. 2010;51(13):3941.

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      © ARVO (1962-2015); The Authors (2016-present)

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Abstract
 
Purpose:
 

To determine the earliest time after cataract surgery that the objective refraction and corneal swelling are stable.

 
Methods:
 

Automated refraction (ARK-30, Nidek) and central corneal thickness (CCT) (Orbscan II, Bausch & Lomb) were monitored in 74 eyes of 45 patients (64.4% female, mean age 65.11±13.55 years) before undergoing uncomplicated cataract surgery (baseline visit) and 4 weeks after surgery. This prospective study included 5 follow up visits: at 24 hours (V1), 1st (V2), 2nd (V3), 3rd (V4) and 4th (V5) week. The stabilization of sphere refraction was analyzed by MANOVA and this value was associated with corneal swelling using a random effects model.

 
Results:
 

Mean sphere value before surgery was -3.51±6.72 D (95% confidence interval (95%CI) from -5.12 to -1.89) and CCT was (547.17 ± 35.91 95%CI 538.73 to 555.60). Stabilization of sphere refraction occurs at V4, with higher change between V1 and V2 (p=0.0027). No differences in sphere refraction were found between V2 and V3 (p=0.8554) or between V4 and V5 (p=0.5869). Stabilization of corneal swelling occurs at V4, with differences between V1 and V2 (p<0.0001), V2 and V3 (p=0.0021) and V3 and V4 (p=0.0368). No differences in corneal swelling were found between V4 and V5 (p=0.6627) (Figure 1).

 
Conclusions:
 

Sphere refraction and corneal swelling stabilize in the 3rd week after uncomplicated cataract surgery.  

 
Keywords: refraction • cataract • topography 
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