Effect of intracorneal ring segment implantation on corneal asphericity [PDF]
International Journal of Ophthalmology, 2018 AIM: To evaluate the visual, refractive and corneal asphericity changes after intrastromal corneal ring segment (ICRS) implantation for visual rehabilitation of keratoconus. METHODS: A total of 42 eyes of 32 patients were included.
Ceren Durmaz Engin +2 more
exaly +7 more sources
Effect of Corneal Tilt on the Determination of Asphericity [PDF]
Sensors, 2021 Purpose: To quantify the effect of levelling the corneal surface around the optical axis on the calculated values of corneal asphericity when conic and biconic models are used to fit the anterior corneal surface.
Alejandra Consejo +2 more
exaly +9 more sources
Corneal Spherical Aberration and Corneal Asphericity after Small Incision Lenticule Extraction and Femtosecond Laser-Assisted LASIK [PDF]
Journal of Ophthalmology, 2017 Purpose. To investigate corneal spherical aberration and corneal asphericity after small incision lenticule extraction (SMILE) and femtosecond laser-assisted laser in situ keratomileusis (FS-LASIK). Methods.
Hui Zhang, Yan Wang, Hua Li
doaj +3 more sources
Changes in Corneal Asphericity after MyoRing Implantation in Moderate and Severe Keratoconus [PDF]
Journal of Ophthalmic & Vision Research, 2019 Purpose: To evaluate the effect of MyoRing implantation on corneal asphericity in moderate and severe keratoconus (KCN). Methods: This cross-sectional observational study comprised 32 eyes of 28 patients with KCN, who had femtosecond-assisted ...
Masoud Khorrami-Nejad +4 more
doaj +3 more sources
Corneal Asphericity and Higher-Order Aberrations after FS-LASIK and Trans-PRK for Myopia [PDF]
Journal of Ophthalmology, 2021 Objective. To compare the corneal asphericity and higher-order aberrations (HOAs) of femtosecond laser-assisted in situ keratomileusis (FS-LASIK) with Smart Pulse Technology (SPT) assisted transepithelial photorefractive keratectomy (Trans-PRK) for ...
Yuan Wu +5 more
doaj +3 more sources
Posterior Corneal Asphericity Effect on Postoperative Astigmatism after EDOF Intraocular Lens Implantation in Cataract Patients [PDF]
Journal of Ophthalmology, 2021 Aim. To assess the impact of posterior corneal asphericity on postoperative astigmatism. Methods. We included retrospectively 70 eyes of 70 patients that underwent cataract surgery.
Mark Rabinovich +6 more
doaj +3 more sources
Interchangeability of corneal curvature and asphericity measurements provided by three different devices [PDF]
International Journal of Ophthalmology, 2019 AIM: To evaluate the interchangeability of keratometric and asphericity measurements provided by three measurement systems based on different optical principles. METHODS: A total of 40 eyes of 40 patients with a mean age of 34.1y were included.
David P Piñero +1 more
exaly +4 more sources
Comparative evaluation of visual outcomes and corneal asphericity after laser-assisted in situ keratomileusis with the six-dimension Amaris excimer laser system. [PDF]
PLoS ONE, 2017 PurposeTo compare the visual and refractive outcomes after laser-assisted in situ keratomileusis (LASIK) surgery for correction of myopia or myopic astigmatism using a six-dimensional Amaris excimer laser.MethodsIn this retrospective cohort study, we ...
JunJie Piao +7 more
doaj +3 more sources
Comparative study of wave-front aberration and corneal Asphericity after SMILE and LASEK for myopia: a short and long term study [PDF]
BMC Ophthalmology, 2019 Background The study compares the wave-front aberration and corneal asphericity from multiple perspectives after Small Incision Lenticule Extraction and Laser-assisted Subepithelial Keratomileusis for mild to moderate myopia in a short and long time ...
Manrong Yu +3 more
doaj +3 more sources
Q-value individualized CLEAR lenticule extraction preserves corneal asphericity and minimizes spherical aberration while maintaining optical zone predictability [PDF]
Scientific ReportsRefractive surgery enhances visual performance by reshaping the cornea. At the same time, optical aberrations typically increase, affecting visual quality.
Janne J. Järvenpää
doaj +3 more sources