Results 211 to 220 of about 444,778 (249)

Endothelial Cell Loss During Penetrating Keratoplasty

American Journal of Ophthalmology, 1978
We studied the central donor endothelium of 27 clear, penetrating corneal transplants with the specular microscope before and after keratoplasty. We examined the donor corneas first, in vitro, while they were immersed in McCarey-Kaufman preservation medium before transplantation. This preoperative examination proved valuable for screening donor corneas,
W M, Bourne, W M, O'Fallon
openaire   +2 more sources

Effect of trabeculectomy on corneal endothelial cell loss

British Journal of Ophthalmology, 2019
AimTo investigate changes in corneal endothelial cell density (CECD) after trabeculectomy.MethodsThis prospective, observational study followed 117 eyes of 117 patients for 2 years after trabeculectomy. The central cornea was examined by corneal specular microscopy prior to and at every 6 months after the surgery.
Kazuyuki Hirooka, Eri Nitta, Kaori Ukegawa, Shino Sato, Yoshiaki Kiuchi   +4 more
openaire   +2 more sources

Endothelial cell loss in irradiated optic nerves

Ophthalmology, 2000
Radiation optic neuropathy usually occurs months to years after exposure of the anterior visual pathways to ionizing radiation. It is characterized by high signal on gadolinium-enhanced T1-weighted magnetic resonance imaging. Radiation-induced endothelial cell damage resulting in blood-nerve barrier breakdown is hypothesized to produce this pattern ...
L A, Levin, E S, Gragoudas, S, Lessell
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Corneal Endothelial Cell Loss Following Trephination

Ophthalmic Surgery, Lasers and Imaging Retina, 1988
ABSTRACT The amount of endothelial cell loss that occurs to the donor cornea during the trephination process was evaluated in 40 porcine eyes. A vital staining technique (alizarin red S and acid violet 19) was used to quantify the extent of endothelial damage and removal.
T E, Clinch, K L, Fung, P L, Laibson
openaire   +2 more sources

Endothelial cell loss after pars plana vitrectomy

Czech and Slovak Ophthalmology, 2021
Aims: To analyse the changes in endothelial cell density (ECD) after pars plana vitrectomy (PPV) and to identify the factors implicated. Patients and Methods: This was a prospective, consecutive, and non-randomised, case-control study. All 23-gauge vitrectomies were performed by a single surgeon at a tertiary centre.
D, Sanchez-Chicharro, E, Šafrová, C, Hernan García, I, Popov, P, Žiak, V, Krásnik   +5 more
openaire   +2 more sources

Precision of Cell Density Estimates and Endothelial Cell Loss With Age

Archives of Ophthalmology, 1985
The precision of estimating endothelial cell density of the cornea, using a noncontact method of specular microscopy, was assessed by asking eight individuals with known densities in one operated-on and one unoperated-on eye to have photography on two occasions in the same day.
H, Cheng, P M, Jacobs, K, McPherson, M J, Noble   +3 more
openaire   +2 more sources

Loss of TLR4 in endothelial cells but not Müller cells protects the diabetic retina

Experimental Eye Research, 2021
Others have previously reported that global loss of toll-like receptor 4 (TLR4) reduced retinal inflammation. To determine cell specific actions of TLR4 in the retina, we generated diabetic endothelial cell specific and Müller cell specific TLR4 knockout mice.
Adam Seidel, Li Liu, Youde Jiang, Jena J. Steinle   +3 more
openaire   +2 more sources

Corneal Endothelial Cell Loss Induced by Air Bags

Ophthalmology, 1993
Although the automobile air bag is a safety device used to protect drivers from death and moderate-to-severe injury, recently it also has been reported to be associated with some ophthalmic injuries. The authors have encountered a case in which a normal air bag may have caused a driver's corneal endothelial cell loss.
K, Fukagawa, K, Tsubota, C, Kimura, S, Hata, T, Mashita, T, Sugimoto, Y, Oguchi   +6 more
openaire   +2 more sources

Loss of eNOS in Endothelial Cells Promotes Proliferation

The FASEB Journal, 2022
Background Endothelial cells help maintain vascular homeostasis mainly by balancing interplay between vasorelaxation and vasoconstriction via regulating availability of Nitric Oxide (NO). Endothelial nitric oxide synthase (eNOS) is one of three NOS isoforms that catalyses the synthesis of NO to regulate ...
Shuhan Bu, Hien C. Nguyen, Sepideh Nikfarjam, David C. Michels, Berk Rasheed, Sauraish Ramesh, Darshil Patel, Margi Patel, Shweta Singh, Jefferson Frisbee, Krishna Singh   +10 more
openaire   +1 more source

Initial endothelial cell density and chronic endothelial cell loss rate in corneal transplants with late endothelial failure

Ophthalmology, 1999
To determine when corneal transplants develop the decreased endothelial cell density that predisposes to late endothelial failure (LEF).Noted cohort study within a prospective case series.The authors compared 21 grafts that developed LEF with the remaining transplants (controls) in a longitudinal cohort study of 500 consecutive penetrating ...
J K, Nishimura, D O, Hodge, W M, Bourne
openaire   +2 more sources