Comfortable and Stabilizing Chin & Forehead Rest Attachment for Slit Lamp Configurations

Inclusion Criteria: * Healthy volunteers; OR, * AMD, diabetic retinopathy, central serous chorioretinopathy, and/or glaucoma or glaucoma suspects or any other suspected eye disease Group-Specific Inclusion Criteria: \-- There are no group-specific inclusion criteria for patients with AMD, diabetic retinopathy, and central serous chorioretinopathy. Healthy Volunteers * A normal clinical ophthalmic examination. * Reliable VF, reproducible glaucoma hemifield tests labeled within normal limits on at least one test. * Good quality (adequate signal strength ≥ 6/10, without segmentation algorithm failure and motion artifacts \> 1 vessel diameter) RNFL and Ganglion Cell Inner Plexiform Layer (GCIPL) OCT, within normal limits. Primary Open Angle Glaucoma (POAG) * Clinical characteristics of glaucoma: optic nerve head (ONH) abnormalities: global rim thinning, rim notch, or disc hemorrhage; retinal nerve fiber layer (RNFL) defect. * Typical glaucomatous field loss in reliable VF, reproducible glaucoma hemifield tests labeled outside normal limits on at least two consecutive tests. * Good quality (adequate signal strength ≥ 6/10, without segmentation algorithm failure and motion artifacts \> 1 vessel diameter) RNFL and GCIPL OCT, labeled outside normal limits with typical glaucomatous RNFL and GCIL thinning. Normal Tension Glaucoma (NTG) * Identical to POAG criteria with IOP recorded at ≤ 21 mmHg at any time point. Exclusion Criteria: An individual who meets any of the following criteria will be excluded from participation in this study: \- Any medical treatment (e.g., chronic corticosteroid, hydroxychloroquine, chloroquine, thioridazine, canthaxanthine) or conditions that affect VF (e.g., stroke) and retinal thickness other than glaucoma.