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Glaucoma 1419

Glaucoma
VetBooks.ir Glaucoma suspected

Tonometry
Not available

Refer immediately for Confirm diagnosis with tonometry Between
tonometry and (i.e., intraocular pressure [IOP] 30 mm Hg) 20 and 30 mm Hg
additional testing – Recheck
in 24 hours
Evidence of intraocular disease
Yes No

Secondary glaucoma Suspect primary glaucoma
(fellow eye at risk; prophylactic treatment
indicated; see Glaucoma, p. 387)
• Determine and treat underlying cause (see Glaucoma, p. 387)
• Topical (q 8h) or systemic carbonic anhydrase
inhibitor topical beta-adrenergic blocker q 8h Vision present in affected eye(s)
can be used for reducing IOP regardless of cause
Yes No

Institute emergency medical therapy: Buphthalmos
Topical prostaglandin analog q 12h (dogs only)
mannitol IV (1-2 g/kg) over 20 minutes topical No Yes
(q 8h) or systemic carbonic anhydrase inhibitor
topical beta-adrenergic blocker q 8h
Consider enucleation
or evisceration and
prosthesis, and
IOP normal ( 20-25 mm Hg)
histopathologic
examination of tissue to
No Yes
confirm type of glaucoma
Consult veterinary Consider referral for surgical options
ophthalmologist (cyclophotocoagulation; anterior chamber
shunt) to help preserve vision longer term
versus continued medical management

UPDATED AND EDITED BY: Leah A. Cohn, DVM, PhD, DACVIM
ORIGINALLY WRITTEN BY: Cheryl L. Cullen, DVM, MVetSc, DACVO
Clinical Algorithms

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