Glaucoma classification

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]

Classification

Glaucoma has been classified into specific types:

Primary Glaucoma and its Variants (H40.1-H40.2)

• Primary glaucoma

• Primary open-angle glaucoma, also known as chronic open-angle glaucoma, chronic simple glaucoma, glaucoma simplex
• Low-tension glaucoma
• Primary angle-closure glaucoma, also known as primary closed-angle glaucoma, narrow-angle glaucoma, iris- block glaucoma, acute congestive glaucoma

• Acute angle-closure glaucoma
• Chronic angle-closure glaucoma
• Intermittent angle-closure glaucoma
• Superimposed on chronic open-angle closure glaucoma (combined mechanism)

• Variants of primary glaucoma

• Pigmentary glaucoma
• Exfoliation glaucoma, also known as pseudoexfoliative glaucoma or glaucoma capsulare

Developmental Glaucoma (Q15.0)

• Developmental glaucoma

• Primary congenital glaucoma
• Infantile glaucoma
• Glaucoma associated with hereditary of familial diseases

Secondary Glaucoma (H40.3-H40.6)

• Secondary glaucoma

• Inflammatory glaucoma

• Uveitis of all types
• Fuchs heterochromic iridocyclitis

• Phacogenic glaucoma

• Angle-closure glaucoma with mature cataract
• Phacoanaphylactic glaucoma secondary to rupture of lens capsule
• Phacolytic glaucoma due to phacotoxic meshwork blockage
• Subluxation of lens

• Glaucoma secondary to intraocular hemorrhage

• Hyphema
• Hemolytic glaucoma, also known as erythroclastic glaucoma

• Traumatic glaucoma

• Angle recession glaucoma: Traumatic recession on anterior chamber angle
• Postsurgical glaucoma

• Aphakic pupillary block
• Ciliary block glaucoma

• Neovascular glaucoma
• Drug-induced glaucoma

• Corticosteroid induced glaucoma
• Alpha- chymotrypsin glaucoma. Postoperative ocular hypertension from use of alpha chymotrypsin.

• Glaucoma of miscellaneous origin

• Associated with intraocular tumors
• Associated with retinal detachments
• Secondary to severe chemical burns of the eye
• Associated with essential iris atrophy

Absolute Glaucoma (H44.5)

• Absolute glaucoma