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We present a technique for wide-field OCT imaging of the cornea using self-referenced interference of the anterior corneal surface with the underlying corneal structure. The method employs a custom objective lens that ensures that the probing beam remains nearly perpendicular to the anterior corneal surface, effectively utilizing it as a reference to generate interference. This approach allows for high-resolution, three-dimensional imaging of corneal layers over a 9mm optical zone. Tests on human subjects show the ability of the system to quantify the anterior corneal layer thickness.
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http://dx.doi.org/10.1364/OL.542289 | DOI Listing |
Cell Tissue Bank
September 2025
Medline Hospital, Adana, Turkey.
To evaluate long‑term outcomes of corneal patch grafting (CPG) and to determine prognostic factors for anatomical and functional success. This retrospective study included 35 eyes from 35 patients who underwent CPG between April 2016 and September 2022 at Adana City Training and Research Hospital. Collected data included age, sex, preoperative and postoperative best-corrected visual acuity (BCVA), graft localization and size, anterior segment findings, graft survival, secondary surgical procedures, and rates of anatomical and functional success.
View Article and Find Full Text PDFPhotodiagnosis Photodyn Ther
September 2025
Department of Ophthalmology, The People's Hospital of Baoan Shenzhen, Shenzhen 518000, China; Department of Ophthalmology, The Second Affiliated Hospital of Shenzhen University, Shenzhen 518000, China. Electronic address:
Objectives: To investigate the relationship between variability of preoperative ocular biometric measurements and the accuracy of intraocular lens (IOL) power calculation.
Methods: This retrospective study included cataract patients who underwent surgery at the People's Hospital of Baoan Shenzhen from January 2022 to December 2024. Preoperative ocular biometric parameters were measured using the Lenstar LS-900, and the coefficients of variation (CV) of corneal curvature (K1-CV, K2-CV), axial length (AL-CV), anterior chamber depth (ACD-CV) were calculated.
Int Ophthalmol
September 2025
Department of Ophthalmology and Visual Sciences, Carver College of Medicine, University of Iowa, 200 Hawkins Dr, 11290A PFP, Iowa City, IA, 52242, USA.
Purpose: To study clinical characteristics and outcomes of penetrating keratoplasty (PK) and deep anterior lamellar keratoplasty (DALK) wound dehiscence.
Methods: This retrospective case series assessed PK and DALK recipients with wound dehiscence at a single institution. We evaluated relationships between dehiscence etiologies, transplant indications, ocular/systemic comorbidities, keratoplasty type, and adverse post-dehiscence outcomes, especially graft failure and visual loss.
Int Ophthalmol
September 2025
People's Hospital of Ningxia Hui Autonomous Region, Third Clinical Medical College of Ningxia Medical University, Yinchuan, China.
Purpose: Keratoconus (KC) is a bilateral, asymmetric disease causing corneal thinning, irregular astigmatism, and vision decline, with unclear etiology. This study aims to investigate pathogenic variants of candidate genes in Chinese KC families via whole exome sequencing (WES).
Methods: The Pentacam 3D anterior segment analysis system was applied for keratectasia detection, and the Corvis ST was used for corneal biomechanics measurement.
Cornea
September 2025
Aravind Eye Hospital and Post Graduate Institute of Ophthalmology, Tirunelveli, Tamil Nadu, India; and.
Purpose: To evaluate the long-term visual, functional outcomes, and complications associated with Deep Anterior Lamellar Keratoplasty (DALK) in pediatric keratoconus (KC).
Methods: A retrospective analysis of children aged ≤18 years who underwent DALK for KC between February 2006 and April 2021. Data on preoperative uncorrected visual acuity (UCVA), best-corrected visual acuity (BCVA), corneal topography, surgical technique, and complications.