Abstract: Methods and apparatus are provided for evaluating an ocular tissue condition of a patient (e.g., a disease, a risk of developing a disease, etc.). For example, an indicator associated with the ocular tissue condition may be generated. A portion of ocular tissue of the patient is irradiated using a light source. Light from the portion of the ocular tissue is received. Raman spectra information associated with the received light is determined. An indicator of an ocular tissue condition is generated based at least on the Raman spectra information. The indicator may, for example, assist a physician in diagnosing or ruling out the ocular tissue condition.

Abstract: Methods and apparatus are provided for evaluating a connective tissue condition of a patient (e.g., a disease, a risk of developing a disease, a risk of developing a fracture, etc.). For example, an indicator associated with the connective tissue condition may be generated. First, tissue at a first location of the body of the patient is irradiated using a light source. The tissue may be irradiated in vivo through the skin or via an incision, for example. Alternatively, a biopsy of the tissue may be irradiated. Then, spectral content information for light scattered, reflected, or transmitted by the irradiated tissue is determined. The spectral content information may be used, at least in part, to generate an indicator associated with a condition of connective tissue at a second location of the body of the patient, the second location remote from the first location. The indicator may, for example, assist a physician in diagnosing or ruling out the connective tissue condition.

Abstract: In a method for measuring cartilage condition biological markers, a surface-enhanced Raman spectroscopy (SERS) substrate is irradiated using a light source, the SERS substrate having deposited thereon a biological sample. Light scattered by the SERS substrate is received, and spectral content information associated with the received light is determined. A level of a cartilage condition biological marker in the biological sample is determined based on the spectral content information.

Abstract: Methods and apparatus are provided for evaluating a connective tissue condition of a patient (e.g., a disease, a risk of developing a disease, a risk of developing a fracture, etc.). For example, an indicator associated with the connective tissue condition may be generated. First, tissue at a first location of the body of the patient is irradiated using a light source. The tissue may be irradiated in vivo through the skin or via an incision, for example. Alternatively, a biopsy of the tissue may be irradiated. Then, spectral content information for light scattered, reflected, or transmitted by the irradiated tissue is determined. The spectral content information may be used, at least in part, to generate an indicator associated with a condition of connective tissue at a second location of the body of the patient, the second location remote from the first location. The indicator may, for example, assist a physician in diagnosing or ruling out the connective tissue condition.