Effect of Higher-Order Aberrations on Visual Function in Keratoconic Eyes with a Rigid Gas Permeable Contact Lens

Negishi, Kazuno; Kumanomido, Takashi; Utsumi, Yoshikazu; Tsubota, Kazuo

doi:10.1016/j.ajo.2007.08.004

Cited by 93 publications

(87 citation statements)

References 24 publications

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“…Although mean BCVA was improved by the Twinbel bevel toric compared with that achieved with the previous lens, the small number of subjects in the present study means that further studies are needed to confirm that this lens can to improve the quality of vision including BCVA. Contrast sensitivity was not significantly improved by the Twinbel bevel toric, which is consistent with the results of previous studies with RGP lenses in keratoconus [26][27][28].…”

Section: Discussionsupporting

confidence: 94%

Bevel toric multicurve rigid gas-permeable lens for keratoconus

2012

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Section: Discussionsupporting

confidence: 94%

Bevel toric multicurve rigid gas-permeable lens for keratoconus

2012

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“…콘택트렌즈의 Masking 효과에 관한 선행연구에서 Rigid lens는 아주 좋은 Masking 효과가 나타나는 동일한 결과 를 보였으나, [19,20] 소프트콘택트렌즈에 관한 연구 결과로 Masking 효과를 기대 할 수 없다는 결과 [21] 와 Masking 효 과를 기대 할 수 있다 [14] 는 결과로, 소프트콘택트렌즈에 관한 연구 결과가 두 가지로 나뉘어 있다. 본 연구에서 나 …”

Section: ) 수술자의 렌즈 재질에 따른 각막지형도 변화량unclassified

Study of Masking Effect of Soft Contact Lenses on Cornea after Refractive Surgery

Moon¹,

Park²,

Chu³

2016

Journal of Korean Ophthalmic Optics Society

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································································································································································································································Purpose: This study investigated the masking effect of the hydrogel lens and silicone hydrogel lens on the cornea with refractive surgery and without surgery. Methods: 24 university students (means age: 23.48±2.89 years) without refractive surgery (12, control group) and with refractive surgery (LASIK: 8, LASEK: 4, experimental group) participated in the study. Mean refractive errors of right eyes were −2.73 D for control group and −0.24 D for experimental group. The differences in the refractive power and corneal topography map between pre-and post-wearing the −3.00 D lenses were compared, and 2 kinds of hydrogel contact lenses (0.89 Mpa, 0.49 Mpa) and 2 kinds of silicone hydrogel lenses (1.5 Mpa, 0.8 Mpa) were used for −3.00 D lenses. NVision-K5001 (Shin nippon, Japan) was used to measure the refractive power and Keratograph 5M (Oculus, Germany) to measure the corneal topography map change. Results: Variations in the refractive power increased to the plus direction in the experimental group after wearing soft contact lenses. The corneal topography map showed significant changes on the both groups after wearing soft contact lenses (p<0.05). However there were no significant differences in the refractive power and corneal topography map variations by lens materials. Conclusions: Wearing soft contact lenses showed corneal topography map changes. Especially wearing soft contact lenses on the flat cornea after corneal refractive surgery showed greater corneal power changes. Therefore, it should pay attention to refractive change in case of prescribing soft contact lenses to patients with corneal refractive surgery.

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“…A aberrometria ocular tem seu papel destacado em casos de ceratocone para diagnóstico (57,(63)(64)(65)(66) , estadiamento (67) , e avaliação do tratamento realizado (65,(68)(69)(70)(71) . O presente estudo pretende avaliar se os dados objetivos com a aberrometria ocular total podem auxiliar na refratometria manifesta, de modo a proporcionar melhor acuidade visual corrigida com óculos (AVc).…”

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