Results 31 to 40 of about 15,957 (233)

Contact lens rehabilitation following repaired corneal perforations

open access: yesBMC Ophthalmology, 2006
Background Visual outcome following repair of post-traumatic corneal perforation may not be optimal due to presence of irregular keratometric astigmatism.
Sreenivas V   +4 more
doaj   +1 more source

Oxygen transmissibility of piggyback systems with conventional soft and silicone hydrogel contact lenses [PDF]

open access: yes, 2006
To investigate the apparent oxygen transmissibility of various piggyback systems using conventional and silicone hydrogel soft contact lenses of different water content and permeability, rigid poly(methyl methacrylate), and rigid gas-permeable lenses of ...
Almeida, José B.   +4 more
core   +1 more source

The Effect of Contact Lens Usage on Corneal Biomechanical Parameters in Keratoconus Patients

open access: yesTürk Oftalmoloji Dergisi, 2012
Pur po se: To determine and compare the corneal biomechanical properties in keratoconus patients using rigid gas permeable contact lenses and keratoconus patients who do not use contact lenses. Ma te ri al and Met hod: The study consisted of 70 healthy
Ali Bülent Çankaya   +4 more
doaj   +1 more source

Corneal topography for rigid gas permeable lens fitting in keratoconus: technique and preliminary results [PDF]

open access: yes, 2002
Purpose: To introduce a practical method based on the topographic values for rigid gas-permeable contact lens (RGPCL) fitting in keratoconus patients. Methods: Thirty-three eyes of 17 consecutive patients with keratoconus were studied between July 1997 ...
Anbar, Roberto   +5 more
core   +3 more sources

Static and dynamic visual perception training combined with RGPCL for nystagmus complicated with ametropia: one case report [PDF]

open access: yesXin yixue, 2023
To evaluate the efficacy of static and dynamic visual perception training combined with rigid gas permeable contact lens (RGPCL) in the treatment of one case of nystagmus complicated with ametropia,aiming to provide guidance for clinical treatment ...
Yang Xiyang, Xu Li, Zeng Jin
doaj   +1 more source

Proper Management for Rigid Gas Permeable Contact and Orthokeratology Lens

open access: yesAnnals of Optometry and Contact Lens, 2023
Demand for rigid gas permeable contact lens has increased recently. Many complications including microbial keratitis and corneal neovascularization can be induced by inappropriate management and poor hygiene. Despite of the initial education of proper management, actual compliance and adherence to the guideline is significantly low.
Kyu Young Shim, Jong Hwa Jun
openaire   +1 more source

The influence of rigid gas permeable lens wear on the concentrations of dinucleotides in tears and the effect on dry eye signs and symptoms in keratoconus [PDF]

open access: yes, 2016
Purpose: To evaluate the signs and symptoms of dry eye and dinucleotide secretion in tears of keratoconus patients (KC) and the potential effect of rigid gas permeable (RGP) contact lens wear.
Carballo, Jesús   +4 more
core   +1 more source

Clinical application of rigid gas permeable contact lens in 5 infants and toddlers after cataract surgery

open access: yes陆军军医大学学报, 2023
Objective To investigate the safety, effectiveness and fitting method of rigid gas permeable (RGP) contact lens after cataract surgery in infants and toddlers.
ZHOU Chao, YAN Binxian, CHEN Li
doaj   +1 more source

Hybrid material contact lens in keratoconus and myopic astigmatism patients [PDF]

open access: yes, 2007
PURPOSE: To evaluate comfort and visual performance in relation to two different used contact lens types: hybrid material (HM) and rigid-gas-permeable (RGP), in patients with regular myopic astigmatism and with keratoconus.
Campos, Mauro Silveira de Queiroz   +5 more
core   +2 more sources

Contact lens in keratoconus

open access: yesIndian Journal of Ophthalmology, 2013
Contact lenses are required for the visual improvement in patients with keratoconus. Various contact lens options, such as rigid gas permeable (RGP) lenses, soft and soft toric lenses, piggy back contact lenses (PBCL), hybrid lenses and scleral lenses ...
Varsha M Rathi   +2 more
doaj   +1 more source

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