Serving Your Vision

眼科機器製品情報 ご利用上の注意



AT-1 Applanation Tonometer

R-type applanation tonometer compatible with a wide range of TAKAGI slit lamps

AT-1 is based on Goldmann applanation tonometry and designed for use with TAKAGI slit lamps, the AT-1 (R-type) provides rapid, safe, and accurate intraocular pressure (IOP) measurement required for the diagnosis of such conditions as glaucoma, ocular hypertension, and retinal detachment.

AT-1 conforms to international standard ISO 8612:2009, which sets out requirements concerning accuracy and reliability of the measurements of applanation tonometers.

Compatible with all current TAKAGI slit lamps. An optional tonometer base is required for installation (Please see the table below for information about tonometer bases that are compatible with each slit lamp model).



  • Check weight & Check weight holder (included as standard)
  • Measuring Prism (included as standard)
  • A Tonometer Base (option) is required to install AT-1.



Reusable Measuring Prism

Smart integrated structure reduces risk of infection
Measuring Prism S12-18 features an integrated structure that reduces infection risk. Its environmentally conscious design is ideal for re-use, and enables highly accurate and safe intraocular pressure measurement. Methacrylic resin, one of the hardest and most highly transparent optical-use plastic materials, is used to realise brightness and clarity of observation and to maximise product life.

Major Specifications

Attachable slit lamp models 700GL, 700GL NSW, 700GL LPH, 4ZL, 2ZL 30GL
Mounting tonometer base TB700 TB30
Measurement range 0~80 mmHg
Minimum scale value 2 mmHg
Measurement method Goldmann method (Goldmann Applanation Tonometry)
Measurement deviation Nominal value ±1.5% or ±0.49 mN, whichever greater
Reverse span (Hysteresis) ≦0.29 mN
Diameter of applanation field 3.06 mm
Depression area 7.354 mm2
Equation for conversion from mmHg to kPa 1 mmHg = 101325 / 760 Pa 133.3 Pa 100 Pa = 0.1 kPa
Dimensions 71.2 mm (W) x 135.0 mm (D) x 249.0 mm (H)
Weight 0.44 kg

Optional Components