Results: 5

1.
 Figure 2. 

Figure 2.  . From: Visual Performance with Wave Aberration Correction after Penetrating, Deep Anterior Lamellar, or Endothelial Keratoplasty.

Lower-order and higher-order aberrations of post-keratoplasty and normal populations. Wavefront aberration amplitudes of three keratoplasty populations as compared with a normal myopic group. Error bars: SEM.

Seth M. Pantanelli, et al. Invest Ophthalmol Vis Sci. 2012 July;53(8):4797-4804.
2.
 Figure 4. 

Figure 4.  . From: Visual Performance with Wave Aberration Correction after Penetrating, Deep Anterior Lamellar, or Endothelial Keratoplasty.

(a) Visual acuity and (b) contrast sensitivity at 4, 8, and 12 cycles/deg in PK, DALK, and DSAEK subjects after lower-order aberration correction and again after full-aberration correction. Full-aberration correction, lower-order and higher-order aberration correction up to the 10th Zernike polynomial order. Error bars: SEM.

Seth M. Pantanelli, et al. Invest Ophthalmol Vis Sci. 2012 July;53(8):4797-4804.
3.
 Figure 3. 

Figure 3.  . From: Visual Performance with Wave Aberration Correction after Penetrating, Deep Anterior Lamellar, or Endothelial Keratoplasty.

(a) Higher-order aberration RMS and (b) contribution to total aberration of post-keratoplasty and normal populations. All keratoplasty groups had greater HOA RMS than that of normal subjects. DSAEK subjects' HOA contributed a larger percentage to total aberration than other populations; this was likely due to the pseudophakic status of all DSAEK subjects, which resulted in relatively low defocus. Error bars: SEM.

Seth M. Pantanelli, et al. Invest Ophthalmol Vis Sci. 2012 July;53(8):4797-4804.
4.
 Figure 5. 

Figure 5.  . From: Visual Performance with Wave Aberration Correction after Penetrating, Deep Anterior Lamellar, or Endothelial Keratoplasty.

Predicted and observed benefit of higher-order aberration correction on contrast sensitivity. All postop groups experienced benefits significantly greater than 1; however, no one group benefited more than any other group, even though predicted benefits were greatest in the PK group and lowest in the DALK group. Predicted benefit of higher-order aberration correction on contrast sensitivity was calculated based on the modulation transfer function (MTF), an image quality metric based solely on optical parameters. Error bars: SEM.

Seth M. Pantanelli, et al. Invest Ophthalmol Vis Sci. 2012 July;53(8):4797-4804.
5.
 Figure 1. 

Figure 1.  . From: Visual Performance with Wave Aberration Correction after Penetrating, Deep Anterior Lamellar, or Endothelial Keratoplasty.

Schematic of the adaptive optics system used to conduct wavefront aberration, visual acuity, and contrast sensitivity measurements. The subject's head is stabilized with a bite-bar (left). The subject looks into the system at either a tumbling “E” target produced by the visual acuity projector (top right) or a grating of varying orientation projected by the contrast sensitivity monitor (top left). Software on the computer analyzes information coming from the Shack–Hartmann wavefront sensor (WFS) and automatically sends corrective adjustments to the AO mirror (bottom right).

Seth M. Pantanelli, et al. Invest Ophthalmol Vis Sci. 2012 July;53(8):4797-4804.

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