The different regions of the macula

The macular region of eye is made up of the umbo, foveola, fovea, parafoveal and perifoveal.

Tobiloba Adejumo
Tobiloba Adejumo

The macular region of eye is made up of the umbo, foveola, fovea, parafoveal and perifoveal.

  • Umbo is placed at center of fovea's foveola and the foveola is located at center of its fovea.
  • The fovea contains the highest concentration of cone cells
  • Located in the middle of the fovea, the foveola is roughly 0.35 millimeters in diameter and consists of solely cone cells and a cone-shaped region of MΓΌller cells.
  • It has been shown that there are more cone receptors in the foveola than everywhere else in the retina, allowing it to have the best visual clarity.
  • Because the cones do not fully form until many months after birth, a newborn's central focus is imperfect.

References

  1. Anatomy of the Retina: https://www.eophtha.com/posts/anatomy-of-retina.
  2. Facts and Figures concerning the human retina: https://www.ncbi.nlm.nih.gov/books/NBK11556/
  3. Wikipedia - Foveola https://en.wikipedia.org/wiki/Foveola
  4. https://doi.org/10.1001%2Farchopht.117.6.821
  5. Zeitz, Oliver. "Myron Yanoff and Jay S. Duker: Ophthalmology." (2019)
  6. Snell, Richard S., and Michael A. Lemp. Clinical anatomy of the eye. John Wiley & Sons, 2013.
πŸ“˜ Feynman series

Tobiloba Adejumo

Doctoral Student, Research Assistant at The University of Illinois Chicago | Biomedical Optics and Functional Imaging Lab