Results 11 to 20 of about 116,025 (191)

Comparison of Toric and Spherical Orthokeratology Lenses in Patients with Astigmatism

open access: yesJournal of Ophthalmology, 2019
Purpose. This retrospective study aimed at comparing the efficacy and safety of toric and spherical orthokeratology lenses in the treatment of patients with moderate to high astigmatism. Methods.
Jun Jiang   +5 more
doaj   +4 more sources

Acquired Esotropia in an Adolescent Wearing Orthokeratology Lenses

open access: yesJournal of Pediatric Ophthalmology & Strabismus, 2022
Orthokeratology is a procedure involving the use of reverse-geometry lenses to temporarily correct refractive errors. Switching from spectacles to orthokeratology lenses may influence binocular visual function and accommodation. This is the first report of orthokeratology lens–associated acquired esotropia, a form of distance esotropia, in
Seung Ah, Chung   +2 more
openaire   +3 more sources

Changes in axial length in anisometropic children wearing orthokeratology lenses. [PDF]

open access: yesFront Med (Lausanne), 2023
PurposeThere is a particular anisometropia occurring in one eye with myopia, while the other eye has very low myopia, emmetropia, or very low hyperopia. It is unclear how the binocular axial length changes when these children wear unilateral OK lenses only in the more myopic eyes. This study investigates the changes in the axial elongation of both eyes.
Qin J   +8 more
europepmc   +6 more sources

Influence of Orthokeratology Lenses on the Structure of the Eye

open access: yesOftalʹmologiâ, 2021
This literature review describes the effect that orthokeratology lenses render on various eye’s structures. The use of these lenses, in addition to the expected changes can cause undesirable effects.
I. A. Bubnova, G. M. Musaeva
doaj   +3 more sources

Do Fenestrations Affect the Performance of Orthokeratology Lenses?

open access: yesOptometry and Vision Science, 2012
ABSTRACT Purpose. To investigate the effect of lens fenestrations on the performance of orthokeratology lenses. Methods. Twenty‐two subjects (aged 11 to 31 years) were fitted with identical reverse geometry ...
Pauline, Cho   +3 more
openaire   +3 more sources

Efficacy of orthokeratology lenses depending on topograpy pupil diameter and lens optical zone size [PDF]

open access: yesJournal of Ophthalmology, 2021
Background: Management of progressive myopia is a major issue in current optometry and oph-thalmology in general. Refractive therapy with orthokeratology lenses (OKL) has become an in-creasingly popular technique for controlling the progression of myopia.
R. A. Parkhomets
doaj   +2 more sources

Mooren Ulcer in a Child Wearing Orthokeratology Contact Lenses

open access: yesEye & Contact Lens: Science & Clinical Practice, 2018
Purpose: To report a case of Mooren ulcer that developed in a pediatric patient wearing orthokeratology overnight contact lenses. Methods: Case report. Results: A 10-year-old boy was referred to our clinic because of progressive ...
Jaeyoung, Kim   +3 more
openaire   +3 more sources

Diurnal regression with orthokeratology lenses [PDF]

open access: yes, 2018
Purpose. The technique of orthokeratology (ortho-k) produces corneal changes as a result of the exerted pressure by the rigid contact lenses. This study aims at gaining a better understanding of the corneal changes produced in ortho-k treatment after the first night of contact lens wear. Methods.
Vázquez López, Meritxell
core   +4 more sources

THE SAFETY ISSUE OF ORTHOKERATOLOGY APPLICATION IN CLINICAL PRACTICE

open access: yesРоссийский офтальмологический журнал, 2018
In recent years, application of night orthokeratological contact lenses (OK lenses) is becoming more and more widespread the world over. Modern orthokeratology makes use of gas-permeable contact lenses of reverse geometry: these are sophisticated ...
Yu. S. Levchenko
doaj   +2 more sources

Influence of orthokeratology lenses on the state of accommodative function in children with myopia [PDF]

open access: yesZaporožskij Medicinskij Žurnal, 2014
Aim. It was showed that optimal optical correction have positive effect on the accommodative apparatus of the myopic eye. Absolute and relative accommodation reserves, the nearest point of clear vision in 50 patients (100 eyes) with mild myopia was ...
T. E. Tsybulskaya
doaj   +2 more sources

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