Results 21 to 30 of about 4,884 (222)

Short-term changes in light distortion in orthokeratology subjects [PDF]

open access: yes, 2015
Purpose. Quantifying adaptation to light distortion of subjects undergoing orthokeratology (OK) for myopia during the first month of treatment. Methods.
Cerviño, Alejandro   +5 more
core   +13 more sources

Strategies to regulate myopia progression with contact lenses: a review [PDF]

open access: yes, 2016
Purpose: Higher myopic refractive errors are associated with serious ocular complications that can put visual function at risk. There is respective interest in slowing and if possible stopping myopia progression before it reaches a level associated ...
Ferreira, Daniela Patrícia Lopes   +6 more
core   +1 more source

Short-term Effects of Overnight Orthokeratology on Corneal Sub-basal Nerve Plexus Morphology and Corneal Sensitivity [PDF]

open access: yes, 2016
Objective: To assess the effects of a short period of orthokeratology (OK) on corneal subbasal nerve plexus (SBNP) morphology and corneal sensitivity. Methods: Measurements were made in 56 right eyes of 56 subjects with low-to-moderate myopia who wore 2
Felipe Márquez, Gema   +3 more
core   +5 more sources

Influence of Overnight Orthokeratology on Corneal Surface Shape and Optical Quality

open access: yesJournal of Ophthalmology, 2017
Purpose. To investigate the changes of corneal surface shape and optical quality during orthokeratology. Methods. 49 eyes of 26 patients (10.63 ± 2.02 years old) who underwent overnight orthokeratology for myopia were prospectively examined.
Yuan Sun   +4 more
doaj   +1 more source

Tear Film Osmolarity in Response to Long-Term Orthokeratology Treatment [PDF]

open access: yes, 2016
Purpose: To compare tear film osmolarity (TFO) measurements in non-contact lens (CL) wearers and wearers of hydrogel or overnight orthokeratology (OK) CLs, and to assess possible effects of long-term OK on TFO.
Felipe Márquez, Gema   +3 more
core   +2 more sources

Tear Lipid Layer Thickness in Children after Short-Term Overnight Orthokeratology Contact Lens Wear

open access: yesJournal of Ophthalmology, 2020
Meibomian gland lipid secretion is important to the stability of the tear film and ocular surface comfort. Changes in the tear film’s lipid layer thickness (LLT) after orthokeratology treatment may reflect underlying changes to the meibomian gland ...
Li Zeng   +4 more
doaj   +1 more source

Changes in peripheral refractive profile after orthokeratology for different degrees of myopia [PDF]

open access: yes, 2016
Purpose: The purpose of this study was to evaluate the effect of orthokeratology for different degrees of myopia correction in the relative location of tangential (FT) and sagittal (FS) power errors across the central 70 of the visual field in the ...
Carracedo, Gonzalo   +5 more
core   +1 more source

CLEAR - Orthokeratology.

open access: yesContact lens & anterior eye : the journal of the British Contact Lens Association, 2021
Orthokeratology (ortho-k) is the process of deliberately reshaping the anterior cornea by utilising specialty contact lenses to temporarily and reversibly reduce refractive error after lens removal. Modern ortho-k utilises reverse geometry lens designs, made with highly oxygen permeable rigid materials, worn overnight to reshape the anterior cornea and
Vincent, Stephen J.   +10 more
openaire   +4 more sources

Relative peripheral refraction across 4 meridians after orthokeratology and LASIK surgery [PDF]

open access: yes, 2018
Background: To characterize the axial and off-axis refraction across four meridians of the retina in myopic eyes before and after Orthokeratology (OK) and LASIK surgery. Methods: Sixty right eyes with a spherical equivalent (M) between − 0.75 to − 5.25
González-Méijome, José Manuel   +5 more
core   +2 more sources

Changes in corneal densitometry after long-term orthokeratology for myopia and short-term discontinuation.

open access: yesPLoS ONE, 2022
PurposeTo quantify changes in corneal densitometry after long-term orthokeratology treatment in myopic children and to analyze the reversibility one month after discontinuation.MethodsSeventy-four myopic subjects aged 8-16 years, who wore orthokeratology
Lianghui Zhao   +3 more
doaj   +1 more source

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