How is penetrating keratoplasty and glaucoma (PKPG) diagnosed?

Updated: Dec 30, 2020
  • Author: Shibandri Das, MD; Chief Editor: Inci Irak Dersu, MD, MPH  more...
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Answer

In the early postoperative period, the diagnosis of PKPG is made on the basis of IOP measurements. In the late postoperative period, the diagnosis of PKPG is based on IOP, optic disc changes, and progressive visual field changes. Ideally, eyes should be examined for optic disc changes, and exams should be performed at least once per year to monitor progression of glaucomatous optic neuropathy. [30]  Patients with extremely high IOP might present with graft edema and/or failure. A timely diagnosis of PKPG is pivotal to preserve both graft clarity and optic nerve function. [30]

Measurements of IOP can be made by using Goldmann applanation, pneumatic applanation tonometer, a Tono-Pen, Icare rebound tonometry, or a dynamic contour tonometer. [5, 6, 7]  


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