Results 61 to 70 of about 17,272 (178)

Single‐Cell RNA Sequencing of Retina Reveals Nna1 Upregulation in Myopic Diabetic Retinopathy as a Protective Factor Against Diabetic Damage

open access: yesAdvanced Science, Volume 13, Issue 5, 27 January 2026.
This study investigates a schematic overview of the mechanistic pathways. The relationship between myopia and DR has long been of clinical interest. In diabetic mice, Nna1 expression is downregulated, whereas in diabetic mice with FDM, Nna1 expression is upregulated–particularly in Müller cells–accompanied by decreased vascular endothelial growth ...
Lihui Xie   +5 more
wiley   +1 more source

Astigmatism-type-specific impact of peripheral corneal thickness on anterior keratometric profile changes after temporal clear corneal incision cataract surgery

open access: yesScientific Reports
Postoperative astigmatism remains a concern after temporal clear corneal incision (TCCI) cataract surgery, especially in eyes with preexisting corneal astigmatism. This study investigated whether peripheral-to-central corneal thickness ratios can predict
Ja Young Oh   +3 more
doaj   +1 more source

Factors predicting change in corneal astigmatism following suture removal in post-penetrating keratoplasty patients

open access: yesClinical Ophthalmology, 2019
Vannarut Satitpitakul, Nopphawan Uramphorn, Ngamjit KasetsuwanDepartment of Ophthalmology, Faculty of Medicine, Chulalongkorn University and King Chulalongkorn Memorial Hospital, Thai Red Cress Society, Bangkok, ThailandCorrespondence: Vannarut ...
Satitpitakul V   +2 more
doaj  

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  

Measurement of corneal astigmatism

open access: yesChinese Science Bulletin, 1998
Cornea is the most inportant optical surface in the eye dioptric system. Three kinds of methods in measuing corneal astigmeatism wre used. Three hundred and sixty eyes suffered ametropia were selected on a random basis. Computer-assisted corneal kpographic system was compared with keratometer and cycloplegic retinoscopy in measuring corneal curvature ...
Kui Zhang   +3 more
openaire   +1 more source

Investigation of a real-time location system of corneal astigmatic axis

open access: yesEye and Vision, 2017
Background To construct a real-time computerized location system (RCLS) to analyze and display the axis of corneal astigmatism and to compare its accuracy with the Scheimpflug method.
Jian-Guo Zhao   +3 more
doaj   +1 more source

Changes in Anterior, Posterior, and Total Corneal Astigmatism after Descemet Membrane Endothelial Keratoplasty

open access: yesJournal of Ophthalmology, 2017
Purpose. To evaluate changes in anterior, posterior, and total corneal astigmatism in patients after Descemet membrane endothelial keratoplasty (DMEK). Methods. We retrospectively included 29 eyes of 23 patients (age 67.6 ± 9.8 years, 13 female, 10 male)
Maged Alnawaiseh   +3 more
doaj   +1 more source

Correlation between corneal biomechanical and tomographic parameters in cataract patients [PDF]

open access: yesInternational Journal of Ophthalmology
AIM: To investigate the relationship between preoperative corneal biomechanical properties and corneal tomographic properties in cataract patients.
Jia-Xi Li   +4 more
doaj   +1 more source

Gender-differences in age-related changes of corneal astigmatism in Korean cataract patients

open access: yesBMC Ophthalmology, 2019
Background This cross-sectional study investigated age-related changes in anterior, posterior, and total corneal astigmatism and evaluated sex differences in corneal astigmatism with increasing age in cataract patients.
Hyojin Kim, Youngju An, Choun-Ki Joo
doaj   +1 more source

Changes in corneal curvature and astigmatism in senile cataract patients after phacoemulsification

open access: yesFrontiers in Medicine
PurposeAnalysis of changes in corneal curvature and astigmatism after phacoemulsification for senile cataracts.MethodsRetrospective collection of clinical data from patients who underwent uncomplicated phacoemulsification at the First Affiliated Hospital
Yan-Hui Xiao, Yue-Qi Liu, Zhi-Gang Chen
doaj   +1 more source

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