Results 21 to 30 of about 5,555,258 (227)

The effectiveness of early lens extraction with intraocular lens implantation for the treatment of primary angle-closure glaucoma (EAGLE) : study protocol for a randomized controlled trial [PDF]

open access: yes, 2011
Glaucoma is the leading cause of irreversible blindness. Although primary open-angle glaucoma is more common, primary angle-closure glaucoma (PACG) is more likely to result in irreversible blindness.
Burr, JM   +82 more
core   +2 more sources

Clinical examples of correct orientation of a toric intraocular lens in patients with postkeratotomic corneal ectasia [PDF]

open access: yesКлиническая практика
BACKGROUND: Surgical treatment of cataract in patients with postkeratotomic corneal ectasia has various features. First, difficulties arise when calculating the optical strength of an intraocular lens and its cylindrical component and determining the ...
Igor V. Kuznetsov, Natalia V. Pasikova
doaj   +1 more source

Relationship between pterygium and biometric error in intraocular lens calculation for cataract surgery [PDF]

open access: yesRevista Brasileira de Oftalmologia
Objective: To evaluate the effect of pterygium on different biometric intraocular lens calculation formulas. Methods: This is an interventionist, prospective, and non-randomized study. We included patients who underwent pterygium surgery and performed a
Victor Harasawa Uno   +7 more
doaj   +1 more source

Predictability of intraocular lens power calculation in eyes with average axial lengths: optical versus ultrasonic biometry

open access: yesDelta Journal of Ophthalmology, 2019
Objective The aim of this study was to compare the partial coherence interferometry to ultrasound (US)-based biometry in intraocular lens (IOL) power calculation in eyes with average axial length (AL).
Amin F Ellakwa   +3 more
doaj   +1 more source

Summary of previous studies on the predictability of intraocular lens power calculation in eyes undergoing combined cataract surgery and trabeculectomy.

open access: yes, 2022
Summary of previous studies on the predictability of intraocular lens power calculation in eyes undergoing combined cataract surgery and trabeculectomy.
Kei Iijima (12914953)   +4 more
core   +1 more source

Case report: Biometry in air-filled eye following retinal surgery

open access: yesKerala Journal of Ophthalmology, 2019
A 70-year-old male patient presented with vitreous hemorrhage in his right eye, for which he was advised for pars plana vitrectomy and endolaser. During the surgery, there was inadvertent contact with the crystalline lens with one of the intraocular ...
Mukesh Kumar, Abhishek Varshney
doaj   +1 more source

Correction of High Corneal Astigmatism during Cataract Surgery

open access: yesOftalʹmologiâ, 2019
Patients, who need cataract surgical treatment, often fail to achieve a high uncorrected visual acuity after surgery due to the concomitant astigmatism involved.
K. B. Pershin   +5 more
doaj   +1 more source

Structure of the lens and its associations with the visual quality

open access: yesBMJ Open Ophthalmology, 2020
In humans, the lens is the organ with the ability to change morphology and refractive power, designated as accommodation, to focus light from various distances and obtain clear retinal image. The accommodative ability of the lens depends on its structure
Zhenzhen Liu   +3 more
doaj   +1 more source

Intraocular Lens Power Calculation Formulas—A Systematic Review

open access: yesOphthalmology and Therapy, 2023
Purpose The proper choice of an intraocular lens (IOL) power calculation formula is an important aspect of phacoemulsification. In this study, the formulas most commonly used today are described and their accuracy is evaluated.
Wiktor Stopyra   +2 more
doaj   +1 more source

Prediction error and accuracy of intraocular lens power calculation in pediatric patient comparing SRK II and Pediatric IOL Calculator

open access: yesBMC Ophthalmology, 2010
Background Despite growing number of intraocular lens power calculation formulas, there is no evidence that these formulas have good predictive accuracy in pediatric, whose eyes are still undergoing rapid growth and refractive changes.
Jasman Azlyn-Azwa   +5 more
doaj   +1 more source

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