Is diabetes mellitus a risk factor or a protector for primary open angle glaucoma?

2007 ◽  
Vol 69 (1) ◽  
pp. 233-234 ◽  
Author(s):  
Fatih Özcura ◽  
Sayime Aydın
2017 ◽  
Vol 9 (1) ◽  
pp. 17-23 ◽  
Author(s):  
P Lavaju ◽  
S Shah ◽  
S Sharma ◽  
R Maskey

Background: Diabetes mellitus (DM) is one of the risk factors for Primary open angle glaucoma (POAG). Inclusion of DM as a risk factor for POAG is controversial. The objectives of the study were to investigate whether Type II (T2) DM is a risk factor for POAG and to determine central corneal thickness (CCT) in the subjects with T2DM and to examine the relationship between T2DM and intraocular pressure (IOP).Materials and methods: A comparative cross sectional study was conducted including 189 subjects of age > 40 years. In Group I, 113 patients diagnosed with T2DM and Group II, age and sex matched 76 subjects with POAG without DM was included. Detailed ocular examination, IOP, CCT and funduscopy evaluation was done. Results: Most of the patients were more than 60 years of age with mean age 58 ± 11 years. Male: female ratio was 1:1. POAG was seen in 27.4% of patients with T2DM. Mean IOP in T2DM was 14.67± 2.63mmHg and in non diabetic, 17.25±4.47 mmHg (p <0.00). In group I, mean CCT was 538.83± 22.7μm and in group II, 531.26 ± 20.9μm (p-0.126). There was no association between CCT and glaucoma (p=0.072, 95% CI: -0.76 –17.46). The study could not elicit an association of T2DM with glaucoma. Duration of T2DM did not affect an association between T2DM and glaucoma (p-0.757). Random blood sugar (p<0.001) and oral hypoglycemic drugs (p=0.030) showed an association with glaucoma. Conclusion: The study failed to show an association between T2DM and primary open angle glaucoma and CCT though an association seen with IOP. A larger prospective comparative study may be help in understanding this association. 


2021 ◽  
Vol 8 (33) ◽  
pp. 3084-3089
Author(s):  
Ram Kumar Jaiswal ◽  
Ramyash Singh Yadav ◽  
Mridula Ranjan ◽  
Dipti Wahi ◽  
Chiranji Rai

BACKGROUND Myopia is a complex trait including both genetic and environmental factors as well as gene-environment interactions. It has been recognized as a risk factor for development of glaucoma. Both Myopia and raised IOP are known to increase mechanical stress at optic nerve head leading to glaucomatous nerve damage. This study intends to evaluate the clinical profile of myopic subjects and its correlation with Primary open angle glaucoma (POAG). METHODS A prospective observational study done from November 2019 to December 2020 after taking proper informed consent and ethical clearance. 164 eyes of 96 patients studied were divided into three groups, Group 1: low myopia (< -3.00D), Group 2: moderate myopia (-3.00 D to -5.75 D), Group 3: high myopia (≥ -6.00 D). A complete ocular examination was performed. Intraocular pressure was measured using Goldmann applanation tonometer. Visual field analysis using Humphrey automated perimetry was done in patients with suspected primary open angle glaucoma (POAG). Angle parameters and central corneal thickness (CCT) were measured using anterior segment optical coherence tomography (AS-OCT). RESULTS 164 eyes of 96 Myopic subjects were studied with no dropout during study period. Mean age was 46.05 yr. (range: 25-75 yr.). The refraction ranged from -0.50 DS to -17.00 DS. There was no statistically significant difference between Intraocular pressure (IOP), Central corneal thickness (CCT), corrected IOP and Nasal and Temporal Trabecular-iris Angle (TIA) between male and female of same age group. Mean IOP and mean CCT were found to vary significantly with age and with higher degree of myopia. Corrected IOP, Nasal and Temporal TIA increase significantly with higher degree of myopia. Cup-disc ratio (CDR) was found to be significantly higher in patients with moderate to high degree of Myopia. CONCLUSIONS Myopia is an important risk factor for development of primary open angle glaucoma, with its incidence increasing in patients with moderate to high myopia. KEYWORDS Myopia, Primary Open Angle Glaucoma, Intraocular Pressure, Central Corneal Thickness, Trabecular Iris Angle


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