Results 31 to 40 of about 12,156 (169)

Analysis of keratometric measurements in accordance with axial length in an aged population

open access: yesScientific Reports, 2022
To investigate keratometric measurements according to axial length in an aged population. Patients requiring cataract surgery with keratometric measurements from four different ophthalmic devices (autorefractor/keratometer, Scheimpflug imaging, corneal ...
Sung Uk Han   +7 more
doaj   +1 more source

The impact of posterior corneal astigmatism on the surgical planning of toric multifocal intraocular lens implantation

open access: yesAdvances in Ophthalmology Practice and Research, 2023
Purpose: To investigate the influence of posterior corneal astigmatism on the prediction accuracy of toric multifocal intraocular lens (IOL) calculation.
Shaochong Bu   +6 more
doaj   +1 more source

A New Approach for the Calculation of Total Corneal Astigmatism Considering the Magnitude and Orientation of Posterior Corneal Astigmatism and Thickness [PDF]

open access: yesCornea, 2018
Purpose: To evaluate a new method of calculation of total corneal astigmatism based on Gaussian optics and the power design of a spherocylindrical lens (C) in the healthy eye and to compare it with keratometric (K) and power vector (PV) methods.
Piñero, David P.   +4 more
openaire   +3 more sources

Patient‐reported outcomes and visual function after four refractive strategies in cataract surgery: A randomized controlled trial

open access: yesActa Ophthalmologica, EarlyView.
Abstract Purpose To evaluate patient‐reported outcome measures (PROMs) and visual function across four groups of public cataract patients: emmetropia, mini‐monovision, monovision with partial‐range of field (RoF) narrow intraocular lenses (IOLs) and patients implanted with partial‐RoF extended IOLs.
Anne Guldhammer Skov   +4 more
wiley   +1 more source

Corneal transplantation: Restoring sight to the blind

open access: yesActa Ophthalmologica, EarlyView.
Abstract Corneal blindness is one of the leading causes of vision loss worldwide. Transplantation of the cornea can restore vision and make blind patients see again. Corneal transplant surgery has undergone major evolution in recent decades with the advent of minimally invasive lamellar surgical approaches such as DMEK and DALK.
Claus Cursiefen
wiley   +1 more source

The Impact of Posterior Corneal Astigmatism on Surgically Induced Astigmatism in Cataract Surgery

open access: yesInternational Journal of General Medicine, 2022
Wenjie Liu,* Lichun Yang,* Jiewei Liu Cataract Department, Shanxi Eye Hospital, Taiyuan, Shanxi Province, People’s Republic of China*These authors contributed equally to this workCorrespondence: Jiewei Liu, Email jieweiliu1967@163.comPurpose:
Liu W, Yang L, Liu J
doaj  

Childhood ocular safety after postnatal exposure to topical dexamethasone during retinopathy of prematurity screening

open access: yesActa Ophthalmologica, EarlyView.
Abstract Purpose Dexamethasone eye drops are being introduced off‐label to prevent progression of severe retinopathy of prematurity (ROP). We evaluated ophthalmologic outcomes in early childhood after postnatal topical dexamethasone exposure in pre‐term infants at a standardized follow‐up examination.
Mariya Petrishka‐Lozenska   +3 more
wiley   +1 more source

Effects of chalazia on corneal astigmatism

open access: yesBMC Ophthalmology, 2017
Background A chalazion is a common eyelid disease that causes eye morbidity due to inflammation and cosmetic disfigurement. Corneal topographic changes are important factors in corneal refractive surgery, intraocular lens power calculations for cataract ...
Ki Won Jin   +2 more
doaj   +1 more source

Repeatability and comparability of the Galilei-G4 and Cassini in measuring corneal power and astigmatism in normal and post-refractive surgery eyes

open access: yesScientific Reports, 2021
To assess the repeatability and comparability of the Galilei G4 versus the Cassini topographer in post-refractive eyes and in normal eyes, including older patients representative of an initial cataract evaluation.
Mohamed Mohamed   +6 more
doaj   +1 more source

Outcomes of therapeutic penetrating keratoplasty and deep anterior lamellar keratoplasty in acanthamoeba keratitis: A systematic review and meta‐analysis

open access: yesActa Ophthalmologica, EarlyView.
Abstract While acanthamoeba keratitis (AK) is a sight‐threatening corneal infection, a thorough comparison of the outcomes of therapeutic penetrating keratoplasty (PK) and therapeutic deep anterior lamellar keratoplasty (DALK) is lacking. We aimed to compare clinical outcomes of PK and DALK in AK.
Gábor Tóth   +8 more
wiley   +1 more source

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