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      A review of systemic medications that may modulate the risk of glaucoma

      , , ,
      Eye
      Springer Science and Business Media LLC

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          Abstract

          With increasing longevity, patients are developing more and more chronic diseases that require treatment with medications. Yet, it is not fully understood the extent by which these systemic medications affect ocular structures and whether they may increase or decrease the risk of sight-threatening ocular diseases. This review provides a summary of reported associations between different systemic medications and the risk of developing glaucoma or experiencing disease progression. Medication classes covered in this review that are known to or may modulate the risk of open-angle glaucoma include corticosteroids, beta blockers, calcium channel blockers, metformin, statins, selective serotonin reuptake inhibitors, bupropion, postmenopausal hormones, and cannabinoids. Medication classes addressed in this review that may increase the risk of angle closure glaucoma include anticholinergics, adrenergic agonists, certain classes of antidepressants, sulfonamides, and topiramate.

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          Most cited references144

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          Is Open Access

          Global variations and time trends in the prevalence of primary open angle glaucoma (POAG): a systematic review and meta-analysis

          Systematic review of published population based surveys to examine the relationship between primary open angle glaucoma (POAG) prevalence and demographic factors. A literature search identified population-based studies with quantitative estimates of POAG prevalence (to October 2014). Multilevel binomial logistic regression of log-odds of POAG was used to examine the effect of age and gender among populations of different geographical and ethnic origins, adjusting for study design factors. Eighty-one studies were included (37 countries, 216 214 participants, 5266 POAG cases). Black populations showed highest POAG prevalence, with 5.2% (95% credible interval (CrI) 3.7%, 7.2%) at 60 years, rising to 12.2% (95% CrI 8.9% to 16.6%) at 80 years. Increase in POAG prevalence per decade of age was greatest among Hispanics (2.31, 95% CrI 2.12, 2.52) and White populations (1.99, 95% CrI 1.86, 2.12), and lowest in East and South Asians (1.48, 95% CrI 1.39, 1.57; 1.56, 95% CrI 1.31, 1.88, respectively). Men were more likely to have POAG than women (1.30, 95% CrI 1.22, 1.41). Older studies had lower POAG prevalence, which was related to the inclusion of intraocular pressure in the glaucoma definition. Studies with visual field data on all participants had a higher POAG prevalence than those with visual field data on a subset. Globally 57.5 million people (95% CI 46.4 to 73.1 million) were affected by POAG in 2015, rising to 65.5 million (95% CrI 52.8, 83.2 million) by 2020. This systematic review provides the most precise estimates of POAG prevalence and shows omitting routine visual field assessment in population surveys may have affected case ascertainment. Our findings will be useful to future studies and healthcare planning.
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            Intraocular pressure-lowering effects of all commonly used glaucoma drugs: a meta-analysis of randomized clinical trials.

            To estimate the intraocular pressure (IOP) reduction achieved by the most frequently prescribed glaucoma drugs and a placebo in a meta-analysis of randomized clinical trials. Meta-analysis of randomized clinical trials. Twenty-seven articles reporting on 28 randomized clinical trials. These articles reported 6953 participants for the trough and 6841 for the peak. Articles published up to December 2003 were identified in the following data sources: Medline, Embase, and the Cochrane Controlled Trials Register, and references from relevant articles. Over 85% of the patients had to be diagnosed with primary open-angle glaucoma (POAG) or ocular hypertension (OH), and articles had to be written in English, German, French, or Dutch. Quality of trials was assessed by a Delphi list with additions. The pooled 1-month IOP-lowering effect from baseline at peak and trough was calculated by performing meta-analysis using the random effects model. Absolute and relative change in IOP from baseline, for peak and trough moments. Relative IOP reductions from baseline [mean (95% confidence interval)] were -23% (-25% to -22%) for a peak and -20% (-23% to -17%) for a trough for 0.5% betaxolol; peak, -27% (-29% to -25%), and trough, -26% (-28% to -25%), for 0.5% timolol; peak, -22% (-24% to -20%), and trough, -17% (-19% to -15%), for 2.0% dorzolamide; peak, -17% (-19% to -15%), and trough, -17% (-19% to -15%) for 1.0% brinzolamide; peak, -25% (-28% to -22%), and trough, -18% (-21% to -14%) for 0.2% brimonidine; peak, -31% (-33% to -29%), and trough, -28% (-30% to -26%) for 0.005% latanoprost; peak, -31% (-32% to -29%), and trough, -29% (-32% to -25%) for 0.004% travoprost; peak, -33% (-35% to -31%), and trough, -28% (-29% to -27%) for 0.03% bimatoprost; and peak, -5% (-9% to -1%), and trough, -5% (-10% to -0%) for the placebo. The difference in absolute IOP reduction from baseline between timolol and prostaglandin analogs or prostamide varied from -0.4 to 0.1 mmHg at trough and from 1.0 to 1.5 mmHg at peak. Quality scores of included studies were generally high, a mean of 14.2 on a scale from 0 to 20 (interquartile range, 13-16). This meta-analysis suggests that bimatoprost, travoprost, latanoprost, and timolol are the most effective intraocular pressure-reducing agents in POAG and OH patients.
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              Rho GTPases, statins, and nitric oxide.

              The lipid-lowering drugs, 3-hydroxy-3-methylgulutaryl-coenzyme A (HMG-CoA) reductase inhibitors or statins, are used in the prevention and treatment of cardiovascular diseases. Recent experimental and clinical studies suggest that statins may exert vascular protective effects beyond cholesterol reduction. For example, statins improve endothelial function by cholesterol-dependent and -independent mechanisms. The cholesterol-independent or "pleiotropic" effects of statins include the upregulation and activation of endothelial NO synthase (eNOS). Because statins inhibit an early step in the cholesterol biosynthetic pathway, they also inhibit the synthesis of isoprenoids such as farnesylpyrophosphate and geranylgeranylpyrophosphate, which are important posttranslational lipid attachments for intracellular signaling molecules such as the Rho GTPases. Indeed, decrease in Rho GTPase responses as a consequence of statin treatment increases the production and bioavailability of endothelium-derived NO. The mechanism involves, in part, Rho/Rho-kinase (ROCK)-mediated changes in the actin cytoskeleton, which leads to decreases in eNOS mRNA stability. The regulation of eNOS by Rho GTPases, therefore, may be an important mechanism underlying the cardiovascular protective effect of statins.
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                Author and article information

                Journal
                Eye
                Eye
                Springer Science and Business Media LLC
                0950-222X
                1476-5454
                October 8 2019
                Article
                10.1038/s41433-019-0603-z
                7002596
                31595027
                b1b737ac-457d-4905-8736-5c67e6aa8a69
                © 2019

                http://www.springer.com/tdm

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