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Jonghyun Lee, Do Hyung Lee; Comparision of high-order aberration in silicone oil-filled state between phasic and pseudophakic eyes. Invest. Ophthalmol. Vis. Sci. 2014;55(13):2131.
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We investigated effect of silicone oil tamponade on ocular internal high-order aberration and evaluated the difference between phasic and pseudophakic eyes.
Fourteen eyes in 14 patients, who had received phaco-vitrectomy and silicone oil tamponade, were included in this study. Internal aberration was measured with KR-1W (Topcon, Tokyo, Japan) aberrometer. Three eyes in 3 patients, who hard received only vitrectomy without phacoemulsification and silicone oil tamponade, were also included. Aberrometry was repeated 1 month after silicone oil removal operation, and compared with preoperative high-order aberration.
In pseudophakic eyes, ocular total high-order aberration(HOA) decreased postoperatively after oil removal, and it was statistically significant in all component (trefoil, coma, tetrafoil, 2nd astigmatism) except spherical aberration. Among trefoil, coma, tetrafoil and 2nd astigmatism, the most significant component which affects theoretical optical quality was coma-like aberration. However, In phakic eyes with silicone oil tamponade, in contrast to pseudophakic eyes, did not showed HOA.
Silicone oil tamponade in pseudophakic eyes, unlike in phakic eyes, induced ocular high order aberrations significantly, which decreased after oil removal operation. While almost all components of ocular HOA was affected, ocular coma-like aberration was most influential to optical quality. Potential best visual acuity can not be achieved by simple spectacular correction due to HOA in silicone oil-filled, pseudophakic eyes. These findings may explain visual loss with unknown cause in silicone oil-filled, pseudophakic eyes.
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