Effects on Vision With Glare After Correction of Monochromatic Wavefront Aberrations

Jungnickel, Hendrik; Babovsky, Holger; Kießling, A.; Gebhardt, Michael; Grein, H.; Kowarschik, R.

doi:10.3928/1081597x-20110317-02

Cited by 6 publications

(6 citation statements)

References 44 publications

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“…Bruchen and colleagues and others have suggested the use of corneal surface wavefront measurements as a screening tool for subclinical keratoconus. Nevertheless, further to the potential diagnostic capacity of the anterior and posterior corneal aberrations in keratoconus, numerous studies indicated their significant impact on retinal image quality. Moreover, significant differences between normal and keratoconic eyes were found in the following posterior aberrometric parameters: primary spherical aberration, primary vertical coma, coma root mean square (RMS) and coma‐like RMS; however, the assessment of anterior and posterior corneal aberrations by Scheimpflug imaging relies heavily on the sufficient reliability of its measurements both in normal and ectatic corneas.…”

mentioning

confidence: 99%

Repeatability, reliability and reproducibility of posterior curvature and wavefront aberrations in keratoconic and cross‐linked corneas

Sideroudi

Labiris

Giarmoulakis

et al. 2013

Clinical and Experimental Optometry

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Background:The aim was to assess the intra-session, inter-session and inter-observer repeatability of curvature and aberrometric measurements of Pentacam-derived posterior corneal surface in normal control (CG), keratoconic (KCG) and after corneal collagen cross-linked (CXLG) groups. Methods: This was a prospective, clinic-based, observational study that was conducted at the Eye Institute of Thrace (EIT) in Alexandroupolis, Greece. Sixty-two normal eyes formed the control group, 33 were in the keratoconic group, while 34 eyes, which already had received corneal collagen cross-linking formed the CXLG. Curvature and aberrometric measurements were obtained using the Pentacam by two operators within each of the two sessions. Precision (Pre), repeatability (COR) and the intra-class correlation coefficient (ICC) were calculated for evaluating intra-session and inter-session repeatability. Bland-Altman analysis was used for assessing inter-observer repeatability. Results: Simulated keratometric parameters K1 and K2, asphericity at the central 8 mm zone (Q8) and central steepest radius of best fit toric ellipsoid reference body (Rs), achieved an acceptable level of accuracy. Aberrometric parameters were repeatable, reliable and reproducible only in terms of the root mean square (RMS) errors (coma, coma-like and the RMS of higher order aberrations or HOA RMS). For both observers, best precision and lowest range of agreement (ROA) was found for HOA RMS parameters in all groups (less than 0.27 and less than 0.29 for the control group, less than 0.95 and less than 0.72 for the keratoconic group and less than 0.67 and 0.53 for the collagen cross-linked group). Conclusion:The Pentacam system provides precise measurements of corneal posterior keratometry, reference body radius and asphericity for large diameter analysis. Although Zernike coefficients for individuals presented poor repeatability, the coma, coma-like and HOA RMS seem to be accurate indices in characterisation of back corneal aberrations.

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confidence: 99%

Repeatability, reliability and reproducibility of posterior curvature and wavefront aberrations in keratoconic and cross‐linked corneas

Sideroudi

Labiris

Giarmoulakis

et al. 2013

Clinical and Experimental Optometry

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“…Bei der Kontrastempfindlichkeit mit Blendung betrug der Faktor 1,58. Der Visus unterschied sich jedoch nicht signifikant bei beiden Korrektionen [2]. Wie l " Abb.…”

Section: Ergebnisse Und Diskussionunclassified

“…Je nach Bild wurde bei 57-78 % der Augen der Seheindruck mit Vollkorrektion besser bewertet. Auch der subjektive Blendeffekt war reduziert [2].…”

Section: Ergebnisse Und Diskussionunclassified

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Untersuchung des Seheindrucks mittels adaptiver Optik

Weigel¹,

Jungnickel

Babovsky³

et al. 2013

Klin Monatsbl Augenheilkd

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“…Previous attempts to reduce glare in the visible spectrum by high-order aberration correction have also pursued by iZon High Definition Lenses. Published literature has shown corrections of higher order aberrations up to the 6 th Zernike polynomial have resulted in increased CS under glare and decreased glare disability 30 . Clinical off-label use of brimonidine 0.10% to decrease overall pupil diameter has also shown some benefit in the reduction of glare disability 31,32 .…”

Section: Photostress (Scotomatic) Glare:-mentioning

confidence: 99%

Overview of Glare Types and Their Relationship With Macular Pigment Optical Density.

Putnam¹

2017

IJAR

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Effects on Vision With Glare After Correction of Monochromatic Wavefront Aberrations

Abstract: Investigation of vision with glare seems to be a reasonable additional test to evaluate the visual outcome of a customized correction.

Cited by 6 publications

References 44 publications

Repeatability, reliability and reproducibility of posterior curvature and wavefront aberrations in keratoconic and cross‐linked corneas

Repeatability, reliability and reproducibility of posterior curvature and wavefront aberrations in keratoconic and cross‐linked corneas

Untersuchung des Seheindrucks mittels adaptiver Optik

Overview of Glare Types and Their Relationship With Macular Pigment Optical Density.

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