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Ophthalmology. 1995 Dec;102(12):1810-2.

Ocular hypertension and central corneal thickness.

Author information

1
Fort Wayne Glaucoma Center, IN 46804, USA.

Abstract

PURPOSE:

To determine whether ocular hypertension (OHT) is over diagnosed in patients with increased corneal thickness.

METHODS:

Thirty-six patients with OHT were compared with 29 control subjects and 31 patients with glaucoma. Corneal thickness was determined by ultrasonic pachymetry and measured at a single point, 1.5 mm temporal to the corneal light reflex.

RESULTS:

The corneal thickness (mean +/- standard deviation) in patients with OHT was 0.610 +/- 0.033 mm. This was significantly greater than in patients with glaucoma (0.557 +/- 0.039 mm) and control subjects (0.567 +/- 0.036 mm).

CONCLUSION:

It is well documented that increased corneal thickness leads to artificially high estimations of intraocular pressure. This study confirms that a significant number of patients with OHT have a normal intraocular pressure if corneal thickness is taken into account. Corneal pachymetry is clinically helpful in estimating intraocular pressure, determining the risk of visual loss, and establishing a target pressure.

PMID:
9098281
DOI:
10.1016/s0161-6420(95)30790-7
[Indexed for MEDLINE]

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