Open-angle glaucoma

Preferred practice pattern: primary open-angle glaucoma, American Academy of Ophthalmology, 2020[8]American Academy of Ophthalmology. Primary open-angle glaucoma preferred practice pattern. Nov 2020 [internet publication]. https://www.aao.org/education/preferred-practice-pattern/primary-open-angle-glaucoma-ppp ​​

Clinical findings characteristic of open-angle glaucoma include:

• Evidence of optic nerve damage from:

  • Optic disk or retinal nerve fiber layer structural abnormalities AND/OR

  • Reliable and reproducible visual field abnormality

• Adult onset

• Open anterior chamber angles

• Absence of other known explanations.

Rotterdam Study (2000 criteria)[46]Wolfs RC, Borger PH, Ramrattan RS, et al. Changing views on open-angle glaucoma: definitions and prevalences - The Rotterdam Study. Invest Ophthalmol Vis Sci. 2000 Oct;41(11):3309-21. https://iovs.arvojournals.org/article.aspx?articleid=2123084 http://www.ncbi.nlm.nih.gov/pubmed/11006219?tool=bestpractice.com ​​

If present in at least one eye and no history of secondary glaucoma. No intraocular pressure criteria.

Three types of open-angle glaucoma:

• Definite: glaucomatous visual field defect and possible glaucomatous optic neuropathy (vertical cup-to-disk ratio ≥0.7 or asymmetry between eyes ≥0.2 or minimum rim width <0.1)

• Probable: glaucomatous visual field defect without possible glaucomatous optic neuropathy, or absence of glaucomatous visual field defect or of any visual field test with probable glaucomatous optic neuropathy (vertical cup-to-disk ratio ≥0.9 or asymmetry between eyes ≥0.3 or minimum rim width <0.05)

• Possible: possible glaucomatous optic neuropathy and no glaucomatous visual field defect.