choroid - a highly vascular membrane in the eye between the retina and the sclera; a dark pigmentation minimizes the scattering of light inside the eye.
(http://www.thefreedictionary.com/choroid)
The pigmented tunic you are referring to is the choroid, which contains melanin that absorbs excess light and prevents it from scattering within the eye. This helps to improve visual acuity and reduce glare.
The layer in the eye that contains dark pigment to absorb extra light and keep the inside of the eye dark is the choroid layer. The melanin pigment in this layer helps prevent light from scattering inside the eye, allowing for better vision and reducing glare.
The opaque middle layer of the eyeball is called the choroid. It is rich in blood vessels and helps to supply nutrients and oxygen to the retina, which is the light-sensitive layer at the back of the eye.
The choroid plexuses form the bulk of the heavily pigmented vascular layer in the eye. This layer is richly supplied with blood vessels and helps nourish the retina. The pigment in the choroid absorbs excess light, preventing it from scattering within the eye and improving visual acuity.
If the middle layer of your bones were heavy instead of light, it would likely affect the overall strength and density of your bones. You may experience increased risk of fractures due to the added weight in the middle layer, as it could compromise the structural integrity of your bones. This could also potentially impact your mobility and overall physical health.
Choriod
choroid :)
choroid
Retina
False.
the Iris
Did you mean the Lamina Fusca Sclera? The problem is the phrasing is awkward with this question so I have no idea what it is you're looking for. That's my best guess from what I can tell.
The pigmented tunic you are referring to is the choroid, which contains melanin that absorbs excess light and prevents it from scattering within the eye. This helps to improve visual acuity and reduce glare.
Scattering of light is called dispersion .
One can find information on light scattering on the Wikipedia website. There is a comprehensive description of light scattering on that page including descriptions of the different types of light scattering.
Mie scattering and Rayleigh scattering are both processes that cause light to scatter, but they differ in how they affect the scattering of light. Mie scattering occurs when particles are larger than the wavelength of light, leading to more uniform scattering in all directions. On the other hand, Rayleigh scattering occurs when particles are smaller than the wavelength of light, causing more intense scattering in the forward direction and less in other directions.
There are three main types of scattering: Rayleigh scattering, Mie scattering, and non-selective scattering. Rayleigh scattering occurs when light interacts with particles smaller than the wavelength of light, causing blue light to scatter more than other colors. Mie scattering happens when light interacts with particles similar in size to the wavelength of light, scattering all colors equally. Non-selective scattering occurs when light scatters in all directions regardless of particle size. These types of scattering affect the behavior of light in different mediums by influencing the color, intensity, and direction of light as it travels through the medium.