The shape of the retina is described as a circular disc.
According to the NCBI Bookshelf reference, "Simple Anatomy of the Retina - Webvision", the total retina is characterized as a circular disc with a diameter typically ranging between 30 and 40 mm. This delicate tissue lines the back of the eye and has an approximate thickness of 0.5 mm.
Key Characteristics from Reference
- Primary Shape: Circular disc
- Location: Lines the back of the eye
- Diameter: Between 30 and 40 mm
- Thickness: Approximately 0.5 mm
This specific description of its circular disc shape and dimensions provides insight into how the retina fits within the spherical structure of the eyeball, acting as the light-sensitive screen at the rear.
