Canadian perspectives in glaucoma management: the role of central corneal thickness

Corneal Thickness and Anterior Chamber Depth by Orbscan in Normal and Primary Open-angle Glaucoma Patients in Korea

“…4 It is accepted that the lowest consistent measurement will represent (perpendicular) CCT and averages taken from multiple measure tend to overestimate true CCT. 8 To our knowledge, only one study 9 has compared the CCT among different glaucoma group that measured not by ultrasonic method, but by optical coherence tomography. However, the sample size of this study was relatively small (n = 20 and 36, for POAG and normal subjects, respectively) and the analysis was performed in univariate model not considering factors that possibly affect CCT.…”

“…In other words, if CCT is different between normal and POAG, it may be more likely that CCT could be independently useful in distinguishing patient with glaucoma from those without glaucoma. 8 Most previous studies about various corneal thicknesses among glaucoma subgroups were done by comparing CCT measurement by pachymeter. Cornea is generally thinnest in center area and the measurement of CCT is done by placing pachymeter's tip on subject's corneal surface, which is thought to be the center on examiners decision.…”