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Applanation tonometers F 900 and A 900
The applanation tonometers F 900 and A 900 are accessory appliances to the SL 990 Slit Lamp and they are used to measure ocular pressure.
Thanks to its versatility the applanation tonometer can also be mounted and combined with other manufacturers equipment.
The applanation tonometer operates according to the “Goldmann method”. In other words, it measures the pressure required for maintaining uniform applanation of the corneal surface.
Precise measurement of the small flattened area is made using a slit lamp at 10x maginification.
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