| 摘要 |
An improved tonometer is disclosed having a pachymetric device means for measuring a patient's corneal thickness to allow for correction of the intraocular pressure measurement where the corneal thickness measurement deviates from a calibration mean corneal thickness. In a preferred embodiment, a single light source is pulsed just prior to intraocular pressure measurement to illuminate a central corneal section, and a pair of lateral light detector arrays are arranged to obliquely image the corneal section and generate signals which may be processed by a CPU to produce a corneal thickness measurement. If the corneal thickness measurement deviates from the calibration mean corneal thickness, the CPU calculates a thickness-corrected intraocular pressure measurement. The intraocular pressure measurement, corneal thickness measurement, and/or corrected intraocular pressure measurement may then be reported by a suitable display. |
