Aberrações de alta ordem: associação com a idade e erros de refração

Bisneto, Otávio Siqueira; Temporini, Edméa Rita; Arieta, Carlos Eduardo Leite; Moreira, Hamílton

doi:10.1590/s0004-27492007000200019

Cited by 4 publications

(2 citation statements)

References 12 publications

(14 reference statements)

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“…Previous studies [24–30] reported the wavefront HOAs using different types of aberrometers. Khan et al [25], Hashemian et al [27], and Bisneto et al [28] agreed that higher levels of spherical aberrations were found in hyperopes, while Yazar et al [26] concluded that higher myopia had slight HOAs. Netto et al [29] did not find a correlation between the degree of refractive error and HOAs.…”

Section: Discussionmentioning

confidence: 99%

Evaluation of Corneal Higher-Order Aberrations by Scheimpflug–Placido Topography in Patients with Different Refractive Errors: A Retrospective Observational Study

Anbar

Mostafa

Elhawary

et al. 2019

Journal of Ophthalmology

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Purpose. To report the characteristics of anterior and posterior corneal high-order aberrations in patients with different refractive errors. Setting. This study was conducted at Sohag Refractive Center, Sohag, Egypt. Design. This is a retrospective observational study. Methods. This study evaluated 750 patients (750 eyes) who were seeking refractive surgery. The eyes were stratified into five groups (150 eyes/group) based on refractive error: mild-to-moderate myopia, high myopia, hyperopia, simple myopic astigmatism, and simple hypermetropic astigmatism. All patients were subjected to comprehensive ophthalmological examination including corneal topography and corneal aberrometry using the Scheimpflug–Placido topography (Sirius, CSO, Italy). Results. Coma aberration was statistically significant when compared in all five groups (P=0.01). It was highest in the hypermetropia group (0.26 ± 0.12 μm) but lower in the moderate myopia, high myopia, myopic astigmatism, and hypermetropic astigmatism groups. Spherical aberration was lowest in the hypermetropia group and significantly different from that in the other groups. Trefoil was statistically insignificant when all groups were compared (P=0.062) but was highest in the myopic astigmatism group (0.24 ± 0.25 μm). Total RMS peaked in the hypermetropia group (0.99 ± 0.70). Conclusions. In normal corneas and regular refractive errors, the cornea-induced high-order aberration was minimal, and all types of refractive errors were associated with certain types of high-order aberrations, with a significant increase in spherical aberration in the hypermetropia group.

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Section: Discussionmentioning

confidence: 99%

Evaluation of Corneal Higher-Order Aberrations by Scheimpflug–Placido Topography in Patients with Different Refractive Errors: A Retrospective Observational Study

Anbar

Mostafa

Elhawary

et al. 2019

Journal of Ophthalmology

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“…No estudo atual a realização dos procedimentos de maneira bilateral e simultânea garantiu que os dois olhos fossem expostos às mesmas condições ambientais locais. Foi estabelecido limite de idade dos pacientes para evitar grande variabilidade das aberrações oculares relacionadas com a idade (6) . Os valores médios do EE das refrações dinâmica foram estatisticamente menores no grupo Zyoptix ® , significando maior hipocorreção neste.…”

Section: Discussionunclassified

Estudo comparativo entre duas plataformas para realização de Lasik personalizado para correção de miopia e astigmatismo: Alcon CustomCornea® versus Bausch & Lomb Zyoptix®

Barreiro

Forseto

Pinto

et al. 2009

Arq. Bras. Oftalmol.

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20/20 foi alcançada em 86% dos olhos no grupo CustomCornea® e 70% no grupo Zyoptix® (p=0,094). Nenhum paciente perdeu duas ou mais linhas da melhor acuidade visual corrigida. Cem por cento dos olhos CustomCornea® e 88% dos Zyoptix® ficaram entre ± 0,50 D da emetropia (p=0,014*). Melhora da sensibilidade ao contraste em todas as frequências espaciais testadas foi observada em ambos os grupos. A aberração esférica apresentou aumento em ambos os grupos, porém este foi estatisticamente maior na plataforma Zyoptix® (p<0,001). CONCLUSÃO: Não foram observadas diferenças entre os grupos quanto à eficácia e segurança. O tratamento com a plataforma Zyoptix® consumiu menor quantidade de estroma. Melhor previsibilidade da correção cirúrgica foi obtida pelo grupo CustomCornea®, bem como menor indução de aberração esférica.]]>

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Effects of varying light conditions and refractive error on pupil size

Maqsood

2017

Cogent Medicine

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Aberrações de alta ordem: associação com a idade e erros de refração

Cited by 4 publications

References 12 publications

Evaluation of Corneal Higher-Order Aberrations by Scheimpflug–Placido Topography in Patients with Different Refractive Errors: A Retrospective Observational Study

Evaluation of Corneal Higher-Order Aberrations by Scheimpflug–Placido Topography in Patients with Different Refractive Errors: A Retrospective Observational Study

Estudo comparativo entre duas plataformas para realização de Lasik personalizado para correção de miopia e astigmatismo: Alcon CustomCornea® versus Bausch & Lomb Zyoptix®

Effects of varying light conditions and refractive error on pupil size

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