The Pathophysiology and Treatment of Glaucoma: A Review
Open accessAbstract
IMPORTANCE: Glaucoma is a worldwide leading cause of irreversible vision loss. Because it may be asymptomatic until a relatively late stage, diagnosis is frequently delayed. A general understanding of the disease pathophysiology, diagnosis, and treatment may assist primary care physicians in referring high-risk patients for comprehensive ophthalmologic examination and in more actively participating in the care of patients affected by this condition. OBJECTIVE: To describe current evidence regarding the pathophysiology and treatment of open-angle glaucoma and angle-closure glaucoma. EVIDENCE REVIEW: A literature search was conducted using MEDLINE, the Cochrane Library, and manuscript references for studies published in English between January 2000 and September 2013 on the topics open-angle glaucoma and angle-closure glaucoma. From the 4334 abstracts screened, 210 articles were selected that contained information on pathophysiology and treatment with relevance to primary care physicians. FINDINGS: The glaucomas are a group of progressive optic neuropathies characterized by degeneration of retinal ganglion cells and resulting changes in the optic nerve head. Loss of ganglion cells is related to the level of intraocular pressure, but other factors may also play a role. Reduction of intraocular pressure is the only proven method to treat the disease. Although treatment is usually initiated with ocular hypotensive drops, laser trabeculoplasty and surgery may also be used to slow disease progression. CONCLUSIONS AND RELEVANCE: Primary care physicians can play an important role in the diagnosis of glaucoma by referring patients with positive family history or with suspicious optic nerve head findings for complete ophthalmologic examination. They can improve treatment outcomes by reinforcing the importance of medication adherence and persistence and by recognizing adverse reactions from glaucoma medications and surgeries.
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Lowering IOP is currently the only clinically approved therapeutic option for glaucoma patients.
“Lowering the IOP is currently the only clinically approved therapeutic option for patients and is achieved through drugs and/or surgery that target the aqueous humor outflow pathways in the anterior segment of the eye (Lusthaus and Goldberg, 2019; Weinreb et al., 2014).”
From Sustained Vision Recovery by OSK Gene Therapy in a Mouse Model of Glaucoma (2023) · cites this paper as Weinreb et al., 2014
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- Authors
- Weinreb, R. N., Aung, T., & Medeiros, F. A.
- Affiliations
- University of California San Diego (US)
- National University of Singapore (SG)
- Corresponding author
- Weinreb, Robert N.
- Venue
- JAMA
- Publisher
- American Medical Association (AMA)
- Published
- 2014-05-14
- Volume
- 311
- Issue
- 18
- Pages
- 1901
- ISSN
- 0002-9955 (ISSN-L)
- 0098-7484
- PMC
- PMC4523637
- OpenAlex
- W2034742711
- Cited by
- 4,210
- References
- 0
- Citations by year
- 2026: 512 · 2025: 594 · 2024: 536 · 2023: 507 · 2022: 466 · 2021: 447 · 2020: 376 · 2019: 260 · 2018: 173 · 2017: 139 · 2016: 108 · 2015: 75 · 2014: 16 · 2013: 1
- FWCI
- 105.98
- Type
- journal article
- Language
- en
- Open access
- green
- www.ncbi.nlm.nih.gov
- Locations
- JAMA (publishedVersion)
- PubMed (publishedVersion)
- Europe PMC (PubMed Central) (acceptedVersion)
- PubMed Central (acceptedVersion)
- eScholarship (California Digital Library) (submittedVersion)
- Funders
- National Eye Institute (R01EY021818, EY019692, EY021818, R01EY019692, P30EY022589)
- Topics
- Health Sciences › Medicine › Ophthalmology › Glaucoma and retinal disorders
- Health Sciences › Medicine › Ophthalmology › Drug-Induced Ocular Toxicity
- Health Sciences › Medicine › Radiology, Nuclear Medicine and Imaging › Corneal surgery and disorders
- Keywords
- glaucoma, open-angle glaucoma, angle-closure glaucoma, pathophysiology, intraocular pressure, retinal ganglion cell death, optic neuropathy, laser trabeculoplasty, glaucoma surgery, medication adherence, adverse drug reactions, primary care referral, vision loss
- MeSH terms
- Glaucoma, Open-Angle, Humans, Primary Health Care, Glaucoma, Angle-Closure
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