corneal pachymetry
Pronunciation: pa-KIM-eh-tree
Measurement of corneal thickness, important for glaucoma diagnosis and refractive surgery planning.
Full Definition
Corneal pachymetry is the measurement of corneal thickness, typically performed using ultrasonic or optical techniques. This measurement is crucial for accurate intraocular pressure interpretation, as thinner corneas may lead to underestimation of true IOP while thicker corneas may result in overestimation. Pachymetry is essential in glaucoma diagnosis and monitoring, refractive surgery candidacy evaluation, and corneal disease assessment. Normal central corneal thickness ranges from approximately 540-560 micrometers, with significant individual variation affecting clinical interpretation.
Usage
Usage note: Critical measurement affecting IOP interpretation and surgical planning.
In Context
- "Corneal pachymetry measured 520 micrometers centrally, indicating relatively thin corneas." — Glaucoma evaluation
- "Preoperative pachymetry confirmed adequate corneal thickness for LASIK candidacy." — Refractive surgery consultation