2006.9.1: Ophthalmometer, c. 1900

Additional Images

2006.9.1: Ophthalmometer.
Image No. 2229 ; Photographer: Helen Kingsley

Object Description

An electrical ophthalmometer designed to measure the curvature of the anterior surface of the cornea and deliver a primary index of a patient's astigmatism or other corneal irregularities. Consists of a telescope on the examiner's side. Patent details 'C.I. OPHTHALMOMETER. PAT Aug 22. 99 CHICAGO. ILL. U.S.A.' in relief on the frame supporting a chin rest and suspended eye cover. A plaque with the manufacturer's details 'F. A HARDY & CO. CHICAGO U.S.A.' is attached to the dish. The dish has 2 eye testing light sources illuminated from behind by lamp bulbs. The cast iron frame has an enamelled coating with gold paint decoration. The telescope and other brass attachment are lacquered.

Object Classification

Accession Number: 2006.9.1
Collection: Ophthalmology
Date: c. 1900

Object Dimensions

  • Height: 57 cm
  • Width: 31 cm
  • Depth: 58 cm

Object Parts

Object Materials

  • brass,
  • cast iron,
  • ceramic,
  • enameled paint,
  • filament,
  • glass,
  • gold paint,
  • lacquer,
  • metal,
  • paper,
  • plastic,
  • rubber

Acquisition Detail

  • Manufacturer: Hardy & Co., F.A.
  • Patent Country: U.S.Patent Date: 1899-08-22