Abstract: A method and system capture an image of the interior of the eye, for example the retina and determine whether the captured image is sufficient to provide data for identifying an individual or animal before attempting to generate the identification data. If the captured image is not sufficient, the method and system automatically capture another image of the interior of the eye.

Abstract: A method and system generates correlated biometric information by capturing an image of a retinal vessel pattern and simultaneously capturing an image of an iris minutia pattern. Retinal biometric data and iris biometric data are generated from the images. The retinal biometric data and the iris biometric data are then combined or linked to maintain the correlation between the two biometrics.

Abstract: A photodynamic therapy includes a particular combination of a photosensitizer and light source for a photodynamic therapy used to treat ocular diseases. The photosensitizer has a peak excitation level when exposed to light of a given wavelength where the wavelength of light is absorbed at a particular location of the eye to be treated. The light source has a wavelength within the excitation range of the photosensitizer and matched to the location of the diseased eye tissue. The light source also has an irradiance level and energy level that is effective for therapy but at levels below the maximum permissible exposure level.

Abstract: A method and system directs therapeutic light of a first wavelength to a patient's eye to excite a photosensitizing agent for PDT during a series of discrete periods of time that are separated by non-therapeutic intervals. Diagnostic light of a second wavelength can be directed to the eye during at least a portion of one or more of the non-therapeutic intervals to allow a physician to see the affect of the therapy.

Abstract: An ophthalmic lens with high definition, wide field of view and high magnification has, in one embodiment, a contact lens, an intermediate field lens and an image lens wherein a real image is formed inside the field lens. At least two of the lenses contribute to the magnification and three surfaces of the ophthalmic lens are aspheric to provide a better defined image. The ophthalmic lens is made disposable with high quality plastic lenses and a plastic holder. A portion of the holder changes appearance in response to change in environment to indicate that the disposable lens has been used.