Eye Health Glossary

  • Macula is a small spot near the center of the retina that is responsible for sharp and clear vision.
  • Retina is the light-sensitive layer of tissue on the inner surface of the eye.
  • Corneal Epithelium is the thin transparent layer covering the front portion of the eye.
  • Macular Pigment Optical Density is the thickness of the macular pigment in the eye, which varies from person to person.  Research shows that low macular pigment optical density can significantly increase the risk of AMD.  This density can change due to aging, lifestyles and dietary choices.
  • Visual Acuity is the clearness of vision dependent on the sharpness of retinal focus within the eye.