scholarly journals Effects of diabetic keratopathy on corneal optical density, central corneal thickness, and corneal endothelial cell counts

2016 ◽  
Vol 12 (3) ◽  
pp. 1705-1710 ◽  
Author(s):  
Feng Gao ◽  
Tao Lin ◽  
Yingzhe Pan
Keyword(s):  
Endothelial Cell ◽  
Optical Density ◽  
Central Corneal Thickness ◽  
Corneal Thickness ◽  
Corneal Endothelial Cell ◽  
Cell Counts ◽  
Diabetic Keratopathy ◽  
Endothelial Cell Counts

Effects of Mitomycin C on Corneal Endothelial Cell Counts in Pterygium Surgery: Role of Application Location

2011 ◽  
Vol 151 (3) ◽  
pp. 488-493 ◽  
Author(s):  
Ahmad Kheirkhah ◽  
Ali Izadi ◽  
Mohammad Yaser Kiarudi ◽  
Rahman Nazari ◽  
Hesam Hashemian ◽  
...  
Keyword(s):  
Endothelial Cell ◽  
Mitomycin C ◽  
Corneal Endothelial Cell ◽  
Cell Counts ◽  
Pterygium Surgery ◽  
Endothelial Cell Counts

scholarly journals Association between donor corneal endothelial cell counts and infectious agent reactivity: an eye bank database analysis

2019 ◽  
Vol 4 ◽  
pp. 6-6
Author(s):  
Bella J. Wolf ◽  
Ji Won Kwon ◽  
Gabriel M. Rand ◽  
Jimmy K. Lee ◽  
Patrick K. Gore ◽  
...  
Keyword(s):  
Endothelial Cell ◽  
Infectious Agent ◽  
Corneal Endothelial Cell ◽  
Database Analysis ◽  
Eye Bank ◽  
Cell Counts ◽  
Endothelial Cell Counts

Corneal Endothelial Cell Counts in Patients on Chlorpromazine Therapy

1983 ◽  
Vol 2 (1) ◽  
pp. 41-45 ◽  
Author(s):  
Steve Farkas ◽  
David S. Hull ◽  
Frank Lazenby ◽  
Keith Green
Keyword(s):  
Endothelial Cell ◽  
Corneal Endothelial Cell ◽  
Cell Counts ◽  
Endothelial Cell Counts

scholarly journals ROLE OF VITAMIN D IN ENDOTHELIAL CELL OF RETINA

2019 ◽  
Vol 3 (2) ◽  
Author(s):  
Dr. Sonpal Jindal ◽  
Dr. Mukesh Kumar Taneja
Keyword(s):  
Vitamin D ◽  
Endothelial Cell ◽  
Vitamin D Deficiency ◽  
Central Corneal Thickness ◽  
Corneal Thickness ◽  
Corneal Endothelial Cell ◽  
Control Group ◽  
Study Group ◽  
Vitamin D Levels ◽  
Corneal Endothelial Cell Density

Vitamin D deficiency is a common health problem worldwide. Many parts of the human eye, including the epithelium of the cornea, lens, ciliary body, and retinal pigment epithelium, as well as the corneal endothelium, ganglion cell layer, and retinal photoreceptors, contain vitamin D receptor. Physiological effects of vitamin D From an ocular point of view, the role in macular and retinal health had been advanced, as well as the involvement in corneal inflammatory response, wound healing, and dry eye disease. The most important effect of vitamin D is on, phosphorus, calcium metabolism and on bone mineralization. Recently, it was observed that vitamin D deficiency and insufficiency are related with common cancers, cardiovascular diseases, metabolic syndromes, infectious, and many chronic diseases including autoimmune disease. Benefits of vitamin D may be amplified through synergistic interaction with topical corticosteroids which accelerates improvement in corneal shape and optics, substantially benefiting the control of ocular surface disease and dry eye symptoms. Aqueous humour is the primary source responsible for the feeding of corneal endothelial layer hence endothelial abnormalities can be expected due to accumulated inflammatory cytokines and multiple toxic products in the aqueous humour of the patients with vitamin D deficiency. MATERIAL AND METHODS: Subjects were selected with vitamin D deficiency in the age group of 20–55 years. 50 patients having serum vitamin D levels <15 ng/ml were included in the study. Serum vitamin D levels of <15 ng/ml were included in the control group. Vitamin D levels in tear fluid were measured by direct competitive chemiluminescent enzyme linked immunoassay. A complete ophthalmic evaluation was performed in all participants which includes assessment of visual acuity, anterior segment evaluation and posterior segment evaluation. Specular microscopy was performed on the eyes of the patients with vitamin D deficiency and healthy control group individuals. Corneal endothelial cell density (CD) and central corneal thickness (CCT) values were calculated automatically using the software of the specular microscope.  RESULTS: The study group included 23 male and 27 female subjects while study group included 24 male and 26 female. Mean age of male in study group was 46.4 ± 12.56 and female was 45.6 ± 11.77. In control group mean male age was 48.5 ± 9.25 and female age was 49.56 ± 12.55. In study group Mean Corneal endothelial cell density (CD)  was observed as 2632.89 ± 189.25 cells/mm 2  and Mean central corneal thickness (CCT) was 587.2 ± 25.89 μ. In control group Mean Corneal endothelial cell density (CD) was observed as 2954.97 ± 116.89 cells/mm 2  and Mean central corneal thickness (CCT) was 546.0 ± 36.22 μ. Vitamin D levels of Tears in study group was 8.4 ± 1.7 ng/ml  and in control group it was 16.2 ± 2.3 ng/ml. CONCLUSION: It has been observed that there is statistically significant difference in the corneal endothelial cell density (CD) and central corneal thickness (CCT) in patients with vitamin D deficiency. It was observed that Vitamin D is present in tear fluid and there is significant difference in the levels of vitamin D in study and control group.

scholarly journals The effects of type 2 diabetes mellitus on the corneal endothelium and central corneal thickness

2020 ◽  
Author(s):  
Tae Gi Kim ◽  
Yoo Jin Kim
Keyword(s):  
Type 2 Diabetes ◽  
Endothelial Cell ◽  
Central Corneal Thickness ◽  
Corneal Thickness ◽  
Corneal Endothelial Cell ◽  
Control Group ◽  
Diabetic Patients ◽  
Duration Of Diabetes ◽  
Significant Difference

Abstract Aim of this study is to evaluate the differences in corneal endothelial cell morphology and corneal thickness in patients with and without type 2 diabetes related to age, disease duration, and HbA1c percentage. This retrospective cross-sectional study included 511 type 2 diabetes patients (1022 eyes) and 900 (1799 eyes) non-diabetic patients. The endothelial cell density (ECD), variation in endothelial cell size (CV), percentage of hexagonal cells, and central corneal thickness (CCT) were analyzed using a noncontact specular microscope and a Pentacam Scheimpflug camera. We also examined the correlation between the corneal parameters and the duration of diabetes. Blood HbA1c results in DM patients were used within 2 months of ophthalmic examination. The controls had no diabetes confirmed by blood tests. For all ages, the subjects with type 2 diabetes showed significantly lower ECD, hexagonality, higher CV, and thicker CCT than the control group. This difference was more pronounced in patients with long-standing DM (≥10 years) and high HbA1c (≥7 %). When stratified by age group, from the 60s group, corneal endothelial cell parameters showed a statistically significant difference between DM and control groups. The duration of diabetes was inversely correlated with ECD (r=-0.167; P=0.000), but HbA1c was not correlated with ECD. These findings suggest that diabetes affects corneal endothelial cell in older age and those with long-standing DM and higher HbA1c. Regular corneal endothelial examinations are required in diabetic patients.

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