Inclusion Criteria:  Subjects will be recruited if willing and able to comply with clinic visit and study-related procedures, and provide signed informed consent Gender of Subjects: Both males and females will be invited to participate. Age of Subjects: Patients will be over 50 years and older  Exclusion Criteria:  Unable to provide informed consent. Other retinal degenerations and retinal vascular diseases such as diabetic retinopathy or macular edema, prior retinal surgery.