Purpose: To objectively evaluate changes in lens densitometry in eyes with neovascular age-related macular degeneration (n-AMD) treated with repeated intravitreal ranibizumab injections during a 12-month period and to compare the results with those in untreated healthy fellow eyes and healthy control eyes.
Methods: In this prospective study, the 36 treated eyes and the 37 untreated fellow eyes of 38 patients with n-AMD and the 32 control eyes of 32 healthy individuals were analyzed. Lens densitometry was evaluated using the Scheimpflug imaging. All data in both groups regarding lens densitometry were recorded at baseline and 12 months.
Results: The mean densitometry of zone 1 in the treated eyes of patients had increased significantly at 12 months compared with the baseline (baseline: 9.3 ± 1.5, 12 months: 11.9 ± 1.7, p = .004) and was significantly greater than those measurements in the fellow eyes (9.8 ± 1.6 p = .02) and control eyes (9.6 ± 1.9, p = .01) at 12 months as well. There were no significant differences in terms of densitometry values between the fellow and control eyes at baseline and 12 months (for all, p > .05).
Conclusions: Our results objectively demonstrate early nuclear lens density changes using with Scheimpflug images in eyes with n-AMD that were treated with repeated ranibizumab injections for 12 months.
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http://dx.doi.org/10.1007/s00417-022-05668-9 | DOI Listing |
Biomicrofluidics
September 2024
Chakri Naruebodindra Medical Institute, Faculty of Medicine Ramathibodi Hospital, Mahidol University, 111 Suwannabhumi Canal Rd, Bang Pla, Bang Phli District, Samut Prakan 10540, Thailand.
The development of a non-invasive method for measuring the internal fluid behavior and dynamics of microchannels in microfluidics poses critical challenges to biological research, such as understanding the impact of wall shear stress (WSS) in the growth of a bone-forming osteoblast. This study used the General Defocus Particle Tracking (GDPT) technique to develop a non-invasive method for quantifying the fluid velocity profile and calculated the WSS within a microfluidic chip. The GDPT estimates particle motion in a three-dimensional space by analyzing two-dimensional images and video captured using a single camera.
View Article and Find Full Text PDFIndian J Ophthalmol
January 2025
Department of Ophthalmology, Advanced Eye Centre, Post Graduate Institute of Medical Education and Research, Chandigarh, India.
Purpose: To evaluate changes in corneal backscattering after collagen cross-linking (CXL) for progressive keratoconus and compare its course with different techniques - standard epithelium-off CXL (SCXL), contact lens-assisted CXL (CACXL), and transepithelial CXL (TECXL).
Setting: Advanced Eye Center, Post Graduate Institute of Medical Education and Research, Chandigarh, India.
Design: Retrospective comparative study.
Eye Contact Lens
November 2024
Department of Ophthalmology (Y.C.Y., S.C.H.), Basaksehir Cam Sakura State Hospital, Istanbul, Turkey; Department of Ophthalmology (Y.C.Y., S.C.I.), Agri Ibrahim Cecen University Faculty of Medicine, Agri, Turkey; and Bodrum Gozakademi Private Eye Hospital (S.C.I.), Bodrum, Mugla, Turkey.
Purpose: The aim of the study was to investigate the corneal and anterior segment characteristics in pseudoexfoliation syndrome (PXS), depending on the severity of the disease.
Materials And Methods: This cross-sectional study was conducted at a tertiary care hospital, in the ophthalmology department, in Turkey. Pseudoexfoliation syndrome group was classified into three groups.
Med Hypothesis Discov Innov Ophthalmol
August 2024
Department of Ophthalmology, 251 Hellenic Airforce General Hospital, Athens, Greece.
Background: Pseudoexfoliation syndrome (PES) is an age-related systemic condition that predominantly affects ocular structures and is characterized by the deposition of material on the lens, ciliary body, zonules, corneal endothelium, iris, and pupillary margin. We compared the corneal endothelial morphology, anterior segment parameters, corneal densitometry, and corneal topographic characteristics between the clinically affected and apparently normal fellow eyes of patients with clinically unilateral PES.
Methods: This was a comparative, cross-sectional study of 34 patients with clinically unilateral PES.
Am J Case Rep
August 2024
Department of Ophthalmology, Rostock University Medical Center, Rostock, Germany.
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