The Role of Spectral Filtering in a Spectrally Adjustable Ocular Photosensitivity Analyzer

Inclusion criteria

• Potential subjects must satisfy all of the following criteria to be enrolled in the study:

• The subject must read and sign the Informed Consent form.
• The subject must appear able and willing to adhere to the instructions set forth in this clinical protocol.
• Healthy adult males or females age ≥18 and ≤30 years of age.
• Normal color vision as measured using the Ishihara 38-plate test.
• Normal stereopsis as measured by a suitable test.
• Auto-refraction must show a spherical component of -2.00 through +2.00 D, and a cylindrical component of 0.00 through 1.50 D.
• The subject's distance refractive sphere must be between -2.00 and +2.00 D in each eye.
• The subject's distance refractive cylinder must be ≤ 1.50 D in each eye.
• The subject must have unaided distance Snellen visual acuity of 20/200 or better for each eye.
• The subject must have best corrected distance Snellen visual acuity of 20/25 or better for each eye.

Exclusion criteria

• Potential subjects who meet any of the following criteria will be excluded from participating in the study:

• Currently pregnant or lactating (subjects who become pregnant during the study will be discontinued).
• History of refractive surgery or other ocular surgery.
• Employee or immediate family member of an employee of clinical site (e.g., Investigator, Coordinator, Technician).
• Subjects that participated in the pilot study CR-6318.
• Systemic conditions or the use of medications that the investigator believes will contraindicate participation in this study.
• Abnormal Level 3 neuro-ophthalmology exam including crystalline lens clarity Grade 3 or worse (Lens Opacities Classification System).
• Any Grade 3 or greater slit lamp findings (e.g., edema, corneal neovascularization, corneal staining, tarsal abnormalities, conjunctival injection) on the FDA Slit Lamp Classification Scale.