Abstract
PURPOSE: To analyze the influence of specific combinations of corneal high order aberrations on the optical image quality of the cornea before and after photorefractive keratectomy (PRK) for low to high myopia and myopic astigmatism. METHODS: Corneal topography was obtained for 80 eyes that underwent PRK using a scanning-spot excimer laser. The eyes were subdivided into three groups according to the preoperative refraction. The topographical data were imported into a custom software program that combined the Zernike high order terms having the same sign and angular frequency up to seventh order for 4-mm and 6-mm pupils, ie, coma and spherical aberrations, and midperipheral and peripheral high order aberrations. RESULTS: Photorefractive keratectomy induced a significant amount of the root-mean-square (RMS) values of the combinations of midperipheral and peripheral high order aberrations over the smaller pupil size for deeper myopic ablations (P
| Original language | English |
|---|---|
| Pages (from-to) | 656-664 |
| Number of pages | 9 |
| Journal | Journal of Refractive Surgery |
| Volume | 22 |
| Issue number | 7 |
| Publication status | Published - Sep 2006 |
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ASJC Scopus subject areas
- Ophthalmology
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Relative contribution of central and peripheral aberrations to overall high order corneal wavefront aberration. / Lombardo, Marco; Lombardo, Giuseppe; Manzulli, Michele; Palombi, Marino; Serrao, Sebastiano.
In: Journal of Refractive Surgery, Vol. 22, No. 7, 09.2006, p. 656-664.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Relative contribution of central and peripheral aberrations to overall high order corneal wavefront aberration
AU - Lombardo, Marco
AU - Lombardo, Giuseppe
AU - Manzulli, Michele
AU - Palombi, Marino
AU - Serrao, Sebastiano
PY - 2006/9
Y1 - 2006/9
N2 - PURPOSE: To analyze the influence of specific combinations of corneal high order aberrations on the optical image quality of the cornea before and after photorefractive keratectomy (PRK) for low to high myopia and myopic astigmatism. METHODS: Corneal topography was obtained for 80 eyes that underwent PRK using a scanning-spot excimer laser. The eyes were subdivided into three groups according to the preoperative refraction. The topographical data were imported into a custom software program that combined the Zernike high order terms having the same sign and angular frequency up to seventh order for 4-mm and 6-mm pupils, ie, coma and spherical aberrations, and midperipheral and peripheral high order aberrations. RESULTS: Photorefractive keratectomy induced a significant amount of the root-mean-square (RMS) values of the combinations of midperipheral and peripheral high order aberrations over the smaller pupil size for deeper myopic ablations (P
AB - PURPOSE: To analyze the influence of specific combinations of corneal high order aberrations on the optical image quality of the cornea before and after photorefractive keratectomy (PRK) for low to high myopia and myopic astigmatism. METHODS: Corneal topography was obtained for 80 eyes that underwent PRK using a scanning-spot excimer laser. The eyes were subdivided into three groups according to the preoperative refraction. The topographical data were imported into a custom software program that combined the Zernike high order terms having the same sign and angular frequency up to seventh order for 4-mm and 6-mm pupils, ie, coma and spherical aberrations, and midperipheral and peripheral high order aberrations. RESULTS: Photorefractive keratectomy induced a significant amount of the root-mean-square (RMS) values of the combinations of midperipheral and peripheral high order aberrations over the smaller pupil size for deeper myopic ablations (P
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M3 - Article
C2 - 16995547
AN - SCOPUS:33748594169
VL - 22
SP - 656
EP - 664
JO - Journal of Refractive Surgery
JF - Journal of Refractive Surgery
SN - 1081-597X
IS - 7
ER -