Heidelberg Perimeter with 90 degree rotating arm 1883

Heidelberg Perimeter with 90 degree rotating arm 1883

Heidelberg perimeter with 90 degree rotating arm from around 1883. Ophthalmic surgeon, Malcolm MacDonald McHardy (1852-1913),published the first perimeter with a quarter arc in 1882.

The Jung company produced the Heidelberg perimeter which looked like the one shown here. This is a modification of the Priestley Smith perimeter.

The perimeter was a huge breakthrough in examining and recording a patient’s peripheral vision. It allows the eye doctor to follow the success or failure of treatment of diseases such as chronic open angle glaucoma.