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Bikbov MM, Kazakbaeva GM, Rakhimova EM, Panda-Jonas S, Tuliakova AM, Fakhretdinova AA, Rusakova IA, Jonas JB. Intraocular pressure and its determinants in a very old population. The ural very old study. Heliyon 2024; 10:e25794. [PMID: 38375271 PMCID: PMC10875446 DOI: 10.1016/j.heliyon.2024.e25794] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2023] [Revised: 12/22/2023] [Accepted: 02/02/2024] [Indexed: 02/21/2024] Open
Abstract
Purpose To explore intraocular pressure (IOP) and its associated parameters in an aged population. Methods The epidemiologic Ural Very Old Study (UVOS) conducted in Bashkortostan/Russia included 1526 participants with an age of ≥85 years. Besides a whole series of ocular and systemic examinations, IOP was determined applying non-contact tonometry. Body mass index, diastolic blood pressure and age were the factors used to estimate the cerebrospinal fluid pressure (CSFP). Results The study consisted of 904 participants (age: 88.6 ± 2.7 years) with available IOP readings and without anti-glaucomatous therapy. Mean IOP was 14.5 ± 5.1 mmHg (median: 14 mm Hg; Q1:11; Q3:16; 95%CI:8,25) and 14.8 ± 4.6 mmHg (median: 14 mm Hg; Q1:12; Q3:17; 95%CI:8,28) in the right and left eyes, respectively. Higher IOP correlated (multivariable analysis; correlation coefficient r2:0.32) with female sex (P < 0.001), more sedentary lifestyle (P = 0.006), higher estimated CSFP (P < 0.001), higher total protein serum concentration (P < 0.001), stronger hand grip force (P = 0.01), thicker central cornea (P < 0.001), longer axial length (P = 0.01), absence of previous cataract surgery (P = 0.001), higher degree of pseudoexfoliation (P = 0.02, and thinner peripapillary retinal nerve fiber layer thickness (P = 0.004). Using this that model, IOP reading enlarged by 0.22 mmHg (95% CI: 0.09, 0.35) for each increase in estimated CSFP by 1 mm Hg, by 0.03 mm Hg (95% CI: 0.02,0.05) for each thickening in central corneal thickness by 1 μm, by 0.56 mm Hg (95%CI: 0.13,1.00) for each axial elongation by 1 mm, and by 0.40 mmHg (95% CI: 0.06,0.74) for each increase in the degree of pseudoexfoliation, and it decreased by 0.40 mmHg (95% CI: 0.06,0.74) by cataract surgery. Conclusions In this study population aged 85+years, IOP readings showed similar relationships as in younger study populations, including positive associations with higher estimated CSFP and longer axial length and a negative association with cataract surgery.
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Affiliation(s)
| | | | | | - Songhomitra Panda-Jonas
- Privatpraxis Prof Jonas und Dr Panda-Jonas, Heidelberg, Germany
- Department of Ophthalmology, Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany
| | | | | | | | - Jost B. Jonas
- Privatpraxis Prof Jonas und Dr Panda-Jonas, Heidelberg, Germany
- Department of Ophthalmology, Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany
- Institute of Molecular and Clinical Ophthalmology Basel, Switzerland
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Bikbov MM, Gilmanshin TR, Zainullin RM, Kazakbaeva GM, Nuriyev IF, Zaynetdinov AF, Panda-Jonas S, Bikbova GM, Rakhimova EM, Rusakova IA, Khalimov TA, Safiullina KR, Fakhretdinova AA, Tuliakova AM, Gizzatov AV, Jonas JB. Prevalence and Associated Factors of Diabetic Retinopathy in a Russian Population. The Ural Eye and Medical Study. Diabetes Metab Syndr Obes 2021; 14:4723-4734. [PMID: 34887670 PMCID: PMC8650832 DOI: 10.2147/dmso.s340211] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/20/2021] [Accepted: 11/12/2021] [Indexed: 01/10/2023] Open
Abstract
AIM To assess prevalence and associated factors of diabetic retinopathy (DR) in a Russian population. METHODS Out of 7328 eligible individuals, the population-based cross-sectional Ural Eye and Medical Study included 5899 (80.5%) individuals aged 40+ years, who underwent a detailed medical and ophthalmological examination. Using ocular fundus photographs and optical coherence tomographic images, we assessed prevalence and degree of DR in 5105 participants. RESULTS DR was present in 99/5105 individuals (1.9%; 95% confidence interval [CI]: 1.6, 2.3). Its prevalence increased from 6/657 (1.0%; 95% CI: 0.2, 1.6) in the age group of 45-50 years to 24/680 (3.5%; 95% CI: 2.1, 4.9) in the age group of 65-70 years, and decreased to 3/153 (2.0%; 95% CI: 0.00, 4.2) in the age group of 80+ years. DR prevalence within the 577 (11.4%; 95% CI: 10.5, 12.2) individuals with diabetes was 99/577 (17.2%; 95% CI: 14.1, 20.2). DR was the cause for moderate-to-severe vision impairment (best corrected visual acuity <6/18 but ≥3/60) in four individuals (4/5105; 0.07%). In multivariable analysis, higher DR prevalence was associated with higher serum glucose concentration (odds ratio [OR]: 1.30; 95% CI: 1.20, 141), longer diabetes duration (OR: 1.06; 95% CI: 1.02, 1.09), type of diabetes therapy (nil/diet/oral/insulin) (OR:4.19;95% CI:3.08, 5.70), lower educational level (OR:0.81;95% CI:0.67, 0.98), lower manual dynamometric force (OR: 0.96; 95% CI: 0.94, 0.99), shorter ocular axial length (OR: 0.73; 95% CI: 0.56, 0.96), and higher diastolic blood pressure (OR: 1.04; 95% CI: 1.01, 1.06), or alternatively, higher estimated cerebrospinal fluid pressure (OR: 1.09; 95% CI: 1.01, 1.18). CONCLUSION In this urban and rural Russian population aged 40+ years, DR prevalence was relatively low (1.9%; 95% CI: 1.6, 2.3), showed an inverted U-shaped association with age, and in a cross-sectional study design it was associated with shorter axial length and higher estimated cerebrospinal fluid pressure.
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Affiliation(s)
- Mukharram M Bikbov
- Ufa Eye Research Institute, Ufa, Bashkortostan, Russia
- Correspondence: Mukharram M Bikbov; Jost B Jonas Tel +7 347 272-37-75; +49-6221-3929320 Email ;
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - Jost B Jonas
- Department of Ophthalmology, Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany
- Institute of Molecular and Clinical Ophthalmology Basel, Basel, Switzerland
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Bikbov MM, Gilmanshin TR, Zainullin RM, Kazakbaeva GM, Arslangareeva II, Panda-Jonas S, Khikmatullin RI, Aminev SK, Nuriev IF, Zaynetdinov AF, Uzianbaeva YV, Nikitin NA, Mukhamadieva SR, Yakupova DF, Rakhimova EM, Rusakova IA, Bolshakova NI, Safiullina KR, Jonas JB. Prevalence and associated factors of glaucoma in the Russian Ural Eye and Medical Study. Sci Rep 2020; 10:20307. [PMID: 33219250 PMCID: PMC7679388 DOI: 10.1038/s41598-020-77344-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2020] [Accepted: 11/10/2020] [Indexed: 11/15/2022] Open
Abstract
To assess the prevalence and associated factors of glaucoma in a Russian population. The population-based Ural Eye and Medical Study included 5899 (mean age 59.0 ± 10.7 years; range 40–94 years). Glaucomatous optic neuropathy was diagnosed using International Society of Geographical and Epidemiological Ophthalmology (ISGEO) criteria. Among 5545 participants with assessable optic disc photographs, 246 individuals [4.4%; 95% confidence interval (CI) 3.9, 5.0] had glaucoma, with open-angle glaucoma (OAG) in 177 individuals (3.2%; 95% CI 2.7, 3.7) and angle-closure glaucoma (ACG) in 69 individuals (1.2; 95% CI 1.0, 1.5), with IOP > 21 mmHg in 79 (32.1%) patients, and with 80 (32.5%) patients on glaucoma therapy. Glaucoma prevalence increased from 3/485 (0.6%; 95% CI 0.0, 1.3) in the age group of 40–45 years to 33/165 (20.0%; 95% CI 13.8, 26.2) in the group aged 80 + years. Higher OAG prevalence correlated with older age [odds ratio (OR) 1.07; 95% CI 1.04, 1.09; P < 0.001], longer axial length (OR 1.36; 95% CI 1.17, 1.58; P < 0.001), higher intraocular pressure (IOP) (OR 1.18; 95% CI 1.13, 1.23; P < 0.001), higher stage of lens pseudoexfoliation (OR 1.26; 95% CI 1.08, 1.47; P = 0.004) and lower diastolic blood pressure (OR 0.98; 95% CI 0.96, 0.99; P = 0.035). Higher ACG prevalence correlated with older age (OR 1.07; 95% CI 1.03, 1.11; P < 0.001), narrower anterior chamber angle (OR 0.81; 95% CI 0.77, 0.86; P < 0.001), and higher IOP (OR 1.30; 95% CI 1.23, 1.38; P < 0.001). Glaucoma caused moderate to severe vision impairment (MSVI) in 9 (4.9%; 95% CI 1.8, 8.1) out of 184 individuals with MSVI (OAG, n = 7; ACG, n = 2), and blindness in one (9.1%) of 11 blind individuals. In this population from Russia, two thirds of glaucoma patients were not on therapy, and in two thirds of the glaucoma patients IOP was ≤ 21 mmHg. Otherwise, glaucoma prevalence, OAG-to-ACG ratio, and glaucoma associations did not differ markedly from Caucasian and East Asian populations.
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Affiliation(s)
- Mukharram M Bikbov
- Ufa Eye Research Institute, 90 Pushkin Street, Ufa, Bashkortostan, Russia, 450077.
| | - Timur R Gilmanshin
- Ufa Eye Research Institute, 90 Pushkin Street, Ufa, Bashkortostan, Russia, 450077
| | - Rinat M Zainullin
- Ufa Eye Research Institute, 90 Pushkin Street, Ufa, Bashkortostan, Russia, 450077
| | - Gyulli M Kazakbaeva
- Ufa Eye Research Institute, 90 Pushkin Street, Ufa, Bashkortostan, Russia, 450077
| | - Inga I Arslangareeva
- Ufa Eye Research Institute, 90 Pushkin Street, Ufa, Bashkortostan, Russia, 450077
| | - Songhomitra Panda-Jonas
- Department of Ophthalmology, Medical Faculty Mannheim, Theodor-Kutzerufer 1, 68167, Mannheim, Germany
| | - Renat I Khikmatullin
- Ufa Eye Research Institute, 90 Pushkin Street, Ufa, Bashkortostan, Russia, 450077
| | - Said K Aminev
- Ufa Eye Research Institute, 90 Pushkin Street, Ufa, Bashkortostan, Russia, 450077
| | - Ildar F Nuriev
- Ufa Eye Research Institute, 90 Pushkin Street, Ufa, Bashkortostan, Russia, 450077
| | - Artur F Zaynetdinov
- Ufa Eye Research Institute, 90 Pushkin Street, Ufa, Bashkortostan, Russia, 450077
| | - Yulia V Uzianbaeva
- Ufa Eye Research Institute, 90 Pushkin Street, Ufa, Bashkortostan, Russia, 450077
| | - Nikolay A Nikitin
- Ufa Eye Research Institute, 90 Pushkin Street, Ufa, Bashkortostan, Russia, 450077
| | | | - Dilya F Yakupova
- Ufa Eye Research Institute, 90 Pushkin Street, Ufa, Bashkortostan, Russia, 450077
| | - Ellina M Rakhimova
- Ufa Eye Research Institute, 90 Pushkin Street, Ufa, Bashkortostan, Russia, 450077
| | - Iulia A Rusakova
- Ufa Eye Research Institute, 90 Pushkin Street, Ufa, Bashkortostan, Russia, 450077
| | - Natalia I Bolshakova
- Ufa Eye Research Institute, 90 Pushkin Street, Ufa, Bashkortostan, Russia, 450077
| | - Kamila R Safiullina
- Ufa Eye Research Institute, 90 Pushkin Street, Ufa, Bashkortostan, Russia, 450077
| | - Jost B Jonas
- Department of Ophthalmology, Medical Faculty Mannheim, Theodor-Kutzerufer 1, 68167, Mannheim, Germany.
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Bikbov MM, Gilmanshin TR, Kazakbaeva GM, Zainullin RM, Rakhimova EM, Rusakova IA, Bolshakova NI, Safiullina KR, Zaynetdinov AF, Zinatullin AA, Nuriev IF, Khalimov TA, Panda-Jonas S, Arslangareeva II, Bikbova GM, Yakupova DF, Uzianbaeva YV, Jonas JB. Prevalence of Myopic Maculopathy Among Adults in a Russian Population. JAMA Netw Open 2020; 3:e200567. [PMID: 32142129 PMCID: PMC7060490 DOI: 10.1001/jamanetworkopen.2020.0567] [Citation(s) in RCA: 50] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
Abstract
IMPORTANCE Although myopic maculopathy has become a major cause of vision impairment worldwide, few data from Russia and Central Asia on the prevalence of myopic maculopathy have been available. OBJECTIVE To assess the prevalence of myopic maculopathy and its associations with ocular and systemic parameters in a population in Russia. DESIGN, SETTING, AND PARTICIPANTS The Ural Eye and Medical Study, a population-based case-control study, was conducted in rural and urban areas in Bashkortostan, Russia, from October 26, 2015, to July 4, 2017. Data analysis was performed from September 13 to September 15, 2019. The Ural Eye and Medical Study included 5899 of 7328 eligible individuals (80.5%) aged 40 years or older. EXPOSURES A detailed ocular and systemic examination included fundus photography and optic coherence tomography for the assessment of myopic maculopathy. MAIN OUTCOMES AND MEASURES Prevalence of myopic maculopathy. RESULTS The present investigation included 5794 of the 5899 eligible individuals (98.2%; 3277 [56.6%] women; mean [SD] age, 58.9 [10.7] years) with available information about myopic maculopathy. Mean (SD) axial length was 23.3 (1.1) mm (range, 19.78-32.87 mm). Prevalence of any myopic maculopathy was 1.3% (95% CI, 1.0%-1.6%); myopic maculopathy stage 2, 0.8% (95% CI, 0.6%-10.0%); stage 3, 0.2% (95% CI, 0.1%-0.4%); and stage 4, 0.2% (95% CI, 0.1%-0.4%). The prevalence of moderate to severe vision impairment and blindness was 29.8% (14 of 47 participants; 95% CI, 16.2%-43.3%) in stage 2 myopic maculopathy, 57.1% (8 of 14 participants; 95% CI, 27.5%-86.8%) in stage 3, and 100% (13 of 13 participants; 95% CI, 100%-100%) in stage 4. In multivariable analysis, a higher myopic maculopathy prevalence was associated with longer axial length (odds ratio [OR], 4.54; 95% CI, 3.48-5.92; P < .001), older age (OR, 1.04; 95% CI, 1.01-1.07; P = .03), and thinner peripapillary retinal nerve fiber layer thickness (OR, 0.96; 95% CI, 0.95-0.98; P < .001). After exclusion of glaucomatous eyes, the association between myopic maculopathy prevalence and thinner retinal nerve fiber layer remained significant (OR, 0.96; 95% CI, 0.95-0.98; P < .001). Myopic maculopathy prevalence was not significantly associated with sex; region of habitation; level of education; ethnicity; prevalence of arterial hypertension, chronic obstructive pulmonary disease, chronic kidney disease, diabetes, and inflammatory liver disease; hearing loss; depression score; or anxiety score. CONCLUSIONS AND RELEVANCE In this ethnically mixed population from Russia, myopic maculopathy prevalence was mainly associated with elongated axial length and thinner peripapillary retinal nerve fiber layer, but was not associated with any major internal medical disease, level of education, ethnicity, or sex. Higher myopic maculopathy stage was associated with vision impairment and blindness. In addition to a known association between high axial myopia and glaucoma, myopic maculopathy may be associated with nonglaucomatous optic neuropathy.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | | | | | | | - Songhomitra Panda-Jonas
- Department of Ophthalmology, Medical Faculty Mannheim of the Ruprecht-Karls-University of Heidelberg, Mannheim, Germany
| | | | | | | | | | - Jost B. Jonas
- Department of Ophthalmology, Medical Faculty Mannheim of the Ruprecht-Karls-University of Heidelberg, Mannheim, Germany
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Abstract
Crystal growth upon firing of hydrous transition metal oxide gels can be effectively inhibited by replacing the surface hydroxyl group before firing with another functional group that does not condense and that can produce small, secondary-phase particles that restrict advancing of grain boundaries at elevated temperatures. Accordingly, fully crystallized SnO(2), TiO(2), and ZrO(2) materials with mean crystallite sizes of approximately 20, 50, and 15 angstroms, respectively, were synthesized by replacing the hydroxyl group with methyl siloxyl before firing at 500 degrees C. An ultrasensitive SnO(2)-based chemical sensor resulting from the microstructural miniaturization was demonstrated.
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Affiliation(s)
- NL Wu
- Department of Chemical Engineering, National Taiwan University, Taipei, Taiwan 106, Republic of China. Texas Center for Superconductivity at the University of Houston, Houston, TX 77204-5932, USA
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