Results 31 to 40 of about 21,662 (213)

Corneal endothelial cells changes in different stages of Keratoconus: a multi-Centre clinical study

BMC Ophthalmology, 2021
Purpose To assess the corneal endothelial cells morphology and count in keratoconus patients and their correlation with different stages of keratoconus. Methods Prospective non randomized multi-centric clinical study included 150 eyes of 150 keratoconus ...
Ahmed Elmassry, Ahmed Osman, Moataz Sabry, Mohamed Elmassry, Mai Katkat, Mohamed Yousry Hatata, Mohamed El-Kateb   +6 more
doaj   +1 more source

Distribution of pediatric keratoconus by different age and gender groups

Frontiers in Pediatrics, 2022
PurposeTo evaluate the distribution of pediatric keratoconus patients and the disease severity based on different age and gender groups in China.Materials and methodsA total of 446 keratoconus eyes in 266 pediatric patients from January 2019 to January ...
Kaili Yang, Yuwei Gu, Liyan Xu, Qi Fan, Meng Zhu, Qing Wang, Shanshan Yin, Bo Zhang, Chenjiu Pang, Shengwei Ren   +9 more
doaj   +1 more source

Current and Future Cornea Chip Models for Advancing Ophthalmic Research and Therapeutics

Advanced Biology, EarlyView.
This review analyzes cornea chip technology as an innovative solution to corneal blindness and tissue scarcity. The examination encompasses recent developments in biomaterial design and fabrication methods replicating corneal architecture, highlighting applications in drug screening and disease modeling while addressing key challenges in mimicking ...
Minju Kim, Kanghoon Choi, Amy Lin, Jungkyu Kim   +3 more
wiley   +1 more source

Shear Wave Optical Coherence Elastography and Structural Analysis of the Postnatal Mouse Cornea through Development

Journal of Biophotonics, EarlyView.
This paper investigates the geometrical and biomechanical properties of neonatal eyes at the early stages of development. We found that the corneal thickness is uncoupled from elastic wave speed and that the content and organization of the cornea primarily influence its mechanical properties.
Andrew L. Lopez III, Mohammad Dehshiri, Alexander W. Schill, Salavat Aglyamov, Kirill Larin   +4 more
wiley   +1 more source

Effects of customized corneal cross‐linking on higher‐order aberrations in progressive keratoconus and low‐grade myopia

Acta Ophthalmologica, EarlyView.
Abstract Objective To evaluate the effects of customized corneal collagen cross‐linking (CXL) on higher‐order aberrations (HOAs) in keratoconus (KC): vertical coma (VC), horizontal coma (HC), spherical aberration (SA), trefoil (TF) and astigmatism, compared with the same effects in healthy eyes undergoing CXL for low‐grade myopia.
Jad Hayek, Andreas Viberg, Sofie Elving, Anneli Fredriksson, Anders Behndig   +4 more
wiley   +1 more source

Corneal elevation and keratoconus indices in a 40- to 64-year-old population, Shahroud Eye Study

Journal of Current Ophthalmology, 2015
Purpose: To determine the corneal elevation values and keratoconus indices in the 40- to 64-year-old population and their changes with aging. Methods: The 6311 invitees of this study were selected through random cluster sampling, and 5190 of them ...
Hassan Hashemi, Asghar Beiranvand, Mehdi Khabazkhoob, Shiva Mehravaran, Mohammad Hassan Emamian, Abbasali Yekta, Mohammad Shariati, Akbar Fotouhi   +7 more
doaj   +1 more source

Systemic Associations with Keratoconus

Life, 2023
Keratoconus is a disease of the cornea that results in progressive steepening and thinning of the cornea and subsequent vision loss. It nearly always presents as a bilateral disease, suggesting that there is an underlying abnormality of the corneas that ...
Prasida Unni, Hyunjoo Jean Lee
doaj   +1 more source

Epikeratoplasty for keratoconus

Korean Journal of Ophthalmology, 1991
The 6 eyes of 6 patients operated on using keratoconic epikeratoplasty are evaluated, and the mean 11-month postoperative results are reported. Uncorrected visual acuities improved in 4 patients and were maintained in 1 patient. One patient revealed a decrease of uncorrected visual acuity in the postoperative 6th month.
Jin Hak Lee, Woo Jung Kim
openaire   +3 more sources

Can the choice of artificial tears harm patients? A narrative review with an overview of the Nordic market

Acta Ophthalmologica, EarlyView.
Abstract Purpose To provide an overview of artificial tears marketed in the following Nordic countries: Denmark, Finland, Norway, Iceland and Sweden. Furthermore, this review aimed to highlight the different preservatives and other constituents found in artificial tears in the Nordic market, focussing on adverse effects.
K. N. Mikha, C. E. Ø. Rasmussen, S. N. G. Ahrensberg, J. Freiberg, R. A. Wozniak, U. M. K. Alnoor, F. Fineide, T. P. Utheim, S. Heegaard, M. Kolko   +9 more
wiley   +1 more source

Mismatch of corneal specialists’ expectations and keratoconus knowledge in general ophthalmologists - a prospective observational study in Switzerland

BMC Medical Education, 2021
Background To assess whether Swiss general ophthalmologists have the minimal keratoconus knowledge that corneal specialists would expect them to have. Methods Corneal specialists defined “minimal keratoconus knowledge” (MKK) with respect to definition ...
Philipp B. Baenninger, Lucas M. Bachmann, Katja C. Iselin, Oliver A. Pfaeffli, Claude Kaufmann, Michael A. Thiel, Gerd Gigerenzer   +6 more
doaj   +1 more source