Comparison of Optic Nerve Head and Retinal Nerve Fiber Layer Parameters Derived From Two Different Methods of Scan Alignment

Inclusion Criteria

• •Able and willing to undergo the test procedures, give consent, and to follow instructions
• •Subjects that understand the nature of the trial
• •Signed informed consent
• •Age : 18 years or older
• •For "normal subjects", "normal" means, there is no reason that would prevent imaging of the eye, therefore:
• •Self-reported healthy eyes without prior intraocular surgery (except cataract surgery and laser in situ keratomileusis) and without clinically significant vitreal, retinal or choroidal diseases, diabetic retinopathy, or disease of the optic nerve (e.g. impacting central VA or RNFLT measurements as determined by the expertise of the investigator)
• •Visual field GHT within normal limits
• •For "glaucoma subjects": Early to advanced glaucoma according to existing medical charts and visual field GHT outside normal limits on at least two occasions during the testing.
• •Refraction between +6 and -6 diopters spherical equivalent and astigmatism ≤ 2 diopters
• •When both eyes are eligible, one randomly selected eye will be evaluated in the analysis