Results 71 to 80 of about 10,825 (176)

Microenvironment‐Responsive Drug Delivery Systems for Ocular Surface Diseases: Mechanisms, Applications, and Translational Challenges

Small Science, Volume 6, Issue 8, August 2026.
Microenvironment‐responsive drug delivery systems overcome ocular physiological barriers by responding to temperature, pH, ions, reactive oxygen species, and enzymes. This review bridges material design, performance evaluation, and clinical translation, offering actionable insights for treating dry eye disease, infectious keratitis, and corneal ...
Jiamin Liu, Liangbo Chen, Yao Fu, Siyi Zhang   +3 more
wiley   +1 more source

Topography-Guided Custom Ablation Treatment for Post-Traumatic Corneal Irregularities—Case Reports

Biomedicines
Background: Post-traumatic corneal wounds that require suturing are quite common; they reduce corneal transparency and cause corneal distortion, leading to corneal astigmatism and higher-order aberrations.
Łukasz Drzyzga, Dorota Śpiewak, Mariola Dorecka, Dorota Wyględowska-Promieńska   +3 more
doaj   +1 more source

Corneal power modelling with OCT data – Thin and thick lens paraxial models versus raytracing

Acta Ophthalmologica, Volume 104, Issue 5, Page 498-509, August 2026.
Abstract Background Evaluating keratometric power with Zeiss index (PKZ), paraxial thick cornea power (Gullstrand [PG]) and power referenced to the front (PFV) and back vertex plane (PBV) and raytracing power (PR), and modelling the deviation from PKZ with a multivariable linear prediction model.
Achim Langenbucher, Nóra Szentmáry, Alan Cayless, Peter Hoffmann, Jascha Wendelstein   +4 more
wiley   +1 more source

Bilateral manifestations of Terrien’s marginal degeneration: a case report

Delta Journal of Ophthalmology
A 35-year-old male patient attended our Outpatient Department with a complaint of diminution of vision in the left eye. He had a history of pterygium surgery in the left eye 20 days ago elsewhere.
Roopambara Singh Rathore, Anu Malik, Malvika Singh, Alka Gupta   +3 more
doaj   +1 more source

Topography-guided neutralization technique for the management of flap complication in laser in situ keratomileusis

Indian Journal of Ophthalmology, 2017
A 29-year-old male was referred following a flap loss after the creation of a thin, irregular flap with a visual acuity of logMAR 0.1 with −2.0 DS−2.75 DC × 175°.
Rohit Shetty, Rushad Shroff, Tushar Grover, T Roshan, Chaitra Jayadev   +4 more
doaj   +1 more source

Corneal Topography, Principles and Applications [PDF]

British Journal of Ophthalmology, 1999
Corneal Topography, Principles and Applications . By Melanie C Corbet, Emmanuel S Rosen, David P S O'Brart. Pp 230. £80. London: BMJ Books, 1999. ISBN 0-7279-1226-7 This is a well presented and easily assimilated book. It has high quality colour reproduction and the examples of the various videokeratoscopic maps are very clear if at times larger than
openaire   +2 more sources

Astigmatic changes after Descemet membrane endothelial keratoplasty (DMEK) in decompensated penetrating keratoplasty grafts

Acta Ophthalmologica, Volume 104, Issue 5, Page e516-e529, August 2026.
Abstract Purpose To evaluate the surgery‐induced changes of astigmatism after Descemet membrane endothelial keratoplasty (DMEK) in eyes with failed previous penetrating keratoplasty (PK). Design Retrospective, interventional cohort study based on prospective DMEK database.
Florian Thomas Steinberg, Jithmi Weliwitage, Marie von Berg, Silvia Schrittenlocher, Simona Schlereth, Claus Cursiefen, Björn Bachmann   +6 more
wiley   +1 more source

Comparison of Surgically-induced Astigmatism using Topography and Keratometry in Patients undergoing Phacoemulsification and Small Incision Cataract Surgery: A Prospective Interventional Study [PDF]

Journal of Clinical and Diagnostic Research
Introduction: Topographic measurement of corneal astigmatism is the current standard of care because, in addition to measuring corneal astigmatism, it identifies irregular astigmatism, which may limit optimum surgical results.
Indrajit Shinde, Ajit Joshi, Aishwarya Pandharikar   +2 more
doaj   +1 more source

Changes in choroidal and retinal thickness 6 months before and during 18 months of orthokeratology lens treatment in myopic children

Acta Ophthalmologica, Volume 104, Issue 5, Page e578-e589, August 2026.
Abstract Purpose To investigate changes in choroidal and retinal thickness before and during myopia control treatment with orthokeratology lenses (OKL) in myopic children. Methods This was a sub‐study of CONTROL and CONTROL2 studies. The present study was a 2‐year, prospective, single‐group interventional study consisting of a 6‐month pre‐treatment ...
P. O. Hansen, F. Møller, T. M. Jakobsen
wiley   +1 more source

Repeatability of keratometry depending on tear film osmolarity

Acta Ophthalmologica, Volume 104, Issue 5, Page e530-e537, August 2026.
Abstract Purpose To determine the repeatability of keratometry and astigmatism measurements of patients depending on the tear film osmolarity using three different devices. Methods In this study, 97 eyes of 97 patients with a mean age of 64.92 ± 12.07 years received three repeated measurements with the IOLMaster 700 (Carl Zeiss Meditec, Jena, Germany),
David Schneider, Klemens Paul Kaiser, Petra Davidova, Thomas Kohnen, Tyll Jandewerth   +4 more
wiley   +1 more source