Results 41 to 50 of about 675,436 (224)

Handheld forward-imaging needle endoscope for ophthalmic optical coherence tomography inspection [PDF]

open access: yes, 2008
We report the narrowest to-date (21 gauge, 820-µm-diam) handheld forward-imaging optical coherence tomography (OCT) needle endoscope and demonstrate its feasibility for ophthalmic OCT inspection.
Han, Shuo   +4 more
core   +1 more source

Tear dynamics under scleral lenses.

open access: yesContact lens & anterior eye : the journal of the British Contact Lens Association, 2019
PURPOSE To evaluate post-lens tear dynamics at two different time points during scleral lens wear in two cohorts with 10 neophytes each. METHODS All subjects wore bilaterally scleral lenses for 5 h on 3 separate visits.
Vivien Tse   +4 more
semanticscholar   +1 more source

Comparative analysis of the correction of irregular postkeratoplastic astigmatism with scleral lenses and intrastromal ring implantation

open access: yesActa Biomedica Scientifica, 2023
Background. Many patients after penetrating keratoplasty (PK) experience induced postkeratoplastic astigmatism, which is often irregular and causes an increase in corneal aberrations that reduce visual acuity and quality. The aim of the study. To conduct
M. V. Sinitsyn, N. A. Pozdeyeva
doaj   +1 more source

Uso de lentes intraoculares tóricas no tratamento cirúrgico de astigmatismo [PDF]

open access: yes, 2014
Correction of corneal astigmatism is a key element of cataract surgery, since post-surgical residual astigmatism can compromise the patient's uncorrected visual acuity.
Koch, Douglas D.   +4 more
core   +3 more sources

Sutureless, Glueless, Scleral Fixation of Single-Piece and Toric Intraocular Lens: A Novel Technique

open access: yesCase Reports in Ophthalmology, 2015
Sutureless, glueless, scleral fixation of an intraocular lens is a known technique of fixing a lens in the scleral pockets. However, this technique is applied to single-piece and toric lenses instead of 3-piece lenses, allowing the advantage of the use ...
Aditya Kelkar   +4 more
doaj   +1 more source

Comparison of Visual and Aberrometric Outcomes in Suture-Free Scleral Fixation: Three-Piece Lenses versus Carlevale Lenses

open access: yesJournal of Clinical Medicine, 2022
Purpose: To compare the refractive results between sutureless scleral fixation intraocular lens (IOLs) (Carlevale, Soleko) and suture-free scleral fixation three-piece IOLs (Sensar AR40, Johnson & Johnson) for secondary implantation in patients with IOL ...
Fabrizio Franco   +4 more
semanticscholar   +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

Large diameter scleral lens benefits for Asians with intractable ocular surface diseases: a prospective, single-arm clinical trial

open access: yesScientific Reports, 2021
To report the efficacy and safety of large diameter scleral lenses and determine their suitability in Asian subjects with intractable ocular surface diseases.
Jayoon Moon   +5 more
doaj   +1 more source

A contact lens with built-in display: science fiction or not? [PDF]

open access: yes, 2013
Recent progress in microsystems integration technology such as ultra-thin chip packaging, stretchable interconnections, thin-film batteries and organic photovoltaics makes it feasible to incorporate various electronic components and transducers in ...
Cuypers, Dieter   +4 more
core   +1 more source

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