Patent Document ID: 5474548
Application ID: 08091670
Patent Status: 1

Claim One:
1. A method for aligning the line of sight of a patient's eye to an optical axis of an ophthalmic instrument, said instrument having an aperture through which the patient may look along the optical axis, comprising the steps of: imaging a first reference target on said ophthalmic optical axis of the instrument with said optical device, imaging a second reference target on the optical axis of the instrument with an optical device, said second reference target being imaged, with respect to the patient's eye, at an optical distance farther along the optical axis than the first reference target, and effecting movement of the patient's eye laterally to a position where the images of the first and second reference targets appear in alignment as viewed by the patient's eye. whereby the patient's line of sight and the optical axis of the instrument are aligned.