Retina Collection (page 4)

Eye retina C017 / 7792
The retina, inside the eye, contains a light-sensitive membranous layer of cells. These are specialized nerve cells: elongated rods (flower like shapes) and cone-tipped cells, that produce vision

Eye retina and iris C017 / 7789
The retina, inside the eye, contains a light-sensitive membranous layer of cells. These are specialized nerve cells: elongated rods (flower like shapes) and cone-tipped cells, that produce vision

Eye retina C017 / 7790
The retina, inside the eye, contains a light-sensitive membranous layer of cells. These are specialized nerve cells: elongated rods (flower like shapes) and cone-tipped cells, that produce vision

Eye retina and iris C017 / 7788
The retina, inside the eye, contains a light-sensitive membranous layer of cells. These are specialized nerve cells: elongated rods (flower like shapes) and cone-tipped cells, that produce vision

Eye retina and iris C017 / 7785
The retina, inside the eye, contains a light-sensitive membranous layer of cells. These are specialized nerve cells: elongated rods (flower like shapes) and cone-tipped cells, that produce vision

Eye retina C017 / 7786
The retina, inside the eye, contains a light-sensitive membranous layer of cells. These are specialized nerve cells: elongated rods (flower like shapes) and cone-tipped cells, that produce vision

Eye retina C017 / 7784
The retina, inside the eye, contains a light-sensitive membranous layer of cells. These are specialized nerve cells: elongated rods (flower like shapes) and cone-tipped cells, that produce vision

Eye retina C017 / 7787
The retina, inside the eye, contains a light-sensitive membranous layer of cells. These are specialized nerve cells: elongated rods (flower like shapes) and cone-tipped cells, that produce vision

Eye retina C017 / 7783
The retina, inside the eye, contains a light-sensitive membranous layer of cells. These are specialized nerve cells: elongated rods (flower like shapes) and cone-tipped cells, that produce vision

Retinal rod cell, TEM C013 / 4805
Retinal rod cell. Transmission electron micrograph (TEM) of a section through a rod cell from the retina of an eye, showing the inner segment (bottom) filled with mitochondria (green)

Retinal rod cell, TEM C013 / 4804
Retinal rod cell. Transmission electron micrograph (TEM) of a section through a rod cell from the retina of an eye, showing the inner segment (bottom) filled with mitochondria (green)

Crayfish compound eye, light micrograph
Crayfish compound eye. Light micrograph of a longitudinal section through the compound eye (top) of a freshwater crayfish (Astacus astacus)

Face biometrics. Computer artwork of lines marking the contours (shape) of a human face. This kind of data could be obtained by scanning faces

Eye scanning

Embryonic stem cells. Computer-enhanced confocal light micrograph of dividing stem cells from the ventricular zone of the retina of a developing embryo

Artwork of human eye in front view and in section

Healthy retina
Normal retina, ophthalmoscope image. The retina is the light-sensitive membrane that lines the back of the eye. Blood vessels (red) radiate out from the optic disc (yellow, left)

Retina, SEM
Retina. Coloured scanning electron micrograph (SEM) of a section through a freeze-fractured retina, showing the light-sensitive rods and cones and their associated neurones

Retina rod cells, SEM
Retina rod cells. Coloured scanning electron micrograph (SEM) of a freeze-fractured section through a retina, revealing the structure of its photoreceptors

Artwork of eye in section demonstrating vision
Longsightedness. Artwork of a section through the human eye demonstrating longsightedness. In longsightedness or hyperopia close objects are seen blurred

Retina blood vessel and nerve cells
Retina cells. Fluorescent light micrograph of cells in the retina, the light-sensitive membrane that lines the back of the eyeball

Irradiation illusion. The white square against a black background on the left appears to be larger than the black square against a white background on the right. They are actually the same size

Hermann-Hering illusion
Hermann grid illusion. The intersections of the white horizontal and vertical lines in this image appear to be grey. But when looked at directly they are clearly white

Biometric eye scan. Computer artwork of a human eye overlaid with binary numbers and computer graphics symbolising eye scanning

Biometric identification

Artwork of diabetic retinopathy ophthalmoscope view
Diabetic retinopathy. Artwork of the retina of the eye (ophthalmoscope view) in a diabetic patient. Diabetic retinopathy is caused by damage to the blood supply of the retina - the light-sensitive

Retinal degeneration. Ophthalmoscope view of the retina of a patients eye, showing disciform macular degeneration (yellow patch)

Retina damage in diabetes
Retinal damage in diabetes. Ophthalmoscope image of diabetic retinopathy, damage to the retina caused by diabetes. Changes to the retinal blood vessels (red) mean that they leak

Ophthalmoscopy of disciform macula degeneration
Macula degeneration. Ophthalmoscope view of the retina of a patients eye, showing disciform macula degeneration. At centre right is a large disc-shaped discoloured area covering the macula

Macular degeneration, ophthalmoscope image. Numerous yellow drusen spots are seen on the retina, the light-sensitive membrane that lines the back of the eyeball

Shortsightedness. Artwork of section through an eyeball affected by shortsightedness, or myopia. This is a condition in which distant objects appear blurred

Light micrograph of monkey retina, high power
Rods and cones of monkey retina. Light micrograph of a tangential section through the retina of a monkeys eye, showing the rod cells (small) and cone cells (large)

Coloured SEM of rod cells in the retina of the eye
Rod cells. Coloured scanning electron micrograph (SEM) of a group of rod cells in the retina of the eye. Rod cells are light sensitive cells which respond to dim light

Optic nerve, light micrograph
Optic nerve. Coloured light micrograph of a section through the optic nerve. The optic nerve (bright pink) collects impulses from the light sensitive cells of the retina and relays them to the brain

Eye structure, light micrograph
Eye structure. Coloured light micrograph of a section through the inner surface of a human eye. This slice shows the vitreous humour (transparent liquid in the eye, top), the retina (pink)

Eye retina
Structure of the retina. Computer artwork showing the structure of the eye retina. The retina is a thin tissue layer on the inner eye responsible for sight. Light strikes from the top

Computer artwork of the structure of the retina
Structure of the retina. Computer artwork showing the structure of the eye retina. The retina is a thin tissue layer on the inner eye responsible for sight. Light strikes from the top

Blood vessels in eye
False-colour scanning electron micrograph (SEM) of blood vessels in the choroid of the eye. A branch- ing network of arteries and veins can be seen in this area under the central fovea

False-colour SEM of the structure of the retina
False-colour scanning electron micrograph (SEM) of the eye retina. The retina, which detects visible images, is made up of many layers of cells (seen here)

False-colour SEM of rod cells in human retina
False-colour scanning electron micrograph (SEM) of rod cells situated in the human retina. Two layers are visible here : one at top (pinkish)

Normal retina of eye
Fundus camera image of the retina of a normal eye, showing the distribution of the retinal veins & arteries: the central retinal artery (a branch of the opthalmic artery)

Skate research. Skate (Raja erinacea) eye being studied under a microscope at the Woods Hole Marine Biology Laboratory (MBL) in Massachusetts, USA

Cell death. Computer-enhanced confocal light micrograph of cells in the retina of the eye undergoing programmed cell death (apoptosis)

Skates collected for research
Skate specimens. Fishing net holding skates (Raja erinacea, with long tails) caught for biological research at the Woods Hole Marine Biology Labora- tory (MBL) in Massachusetts, USA

Developing pig eye, light micrograph. From right the structures seen are: the cornea (brown), the lens (purple), the retina (pink), the choroid (dark brown line) and the sclera (white of the eye)

Retina, light micrograph
Retina. Light micrograph of a section through the retina showing its 10 layers. Magnification: x250 when printed at 10 centimetres wide

Human eye anatomy, artwork
Human eye anatomy, computer artwork

Bird eye anatomy, artwork. The structure of a birds eye is similar to that of humans and other vertebrates, with a clear cornea forming a bulge (left) in front of the lens (oval)

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The retina, a fascinating structure within the human eye, has captivated scientists and artists alike throughout history. From histological diagrams to intricate artwork, the intricacies of its anatomy have been meticulously studied and depicted. In the 17th century, Descartes' optics theory shed light on how light interacts with the retina. This groundbreaking understanding paved the way for further exploration into this complex organ. An engraving from 1899 beautifully illustrates the external anatomy of the human eye, showcasing how it works in harmony with the retina. The rod and cone cells of the eye are highlighted in another image taken through a scanning electron microscope (SEM), revealing their delicate structures responsible for vision. Advancements in technology have allowed us to delve deeper into studying retinas through biometric scans. These scans provide valuable insights into individual characteristics and contribute to fields like artificial intelligence. A captivating false-color SEM image showcases a central fovea within a retina—an area crucial for sharp vision—highlighting its intricate details that make it an essential part of our visual system. At a molecular level, rhodopsin protein molecules play a vital role in converting light signals received by retinal cells into electrical impulses sent to our brain—a process critical for sight perception. As we explore further, we discover not only its anatomical features but also its network of blood vessels that supply oxygen and nutrients to sustain this remarkable organ's functionality. From ancient theories to modern scientific discoveries, artful depictions or microscopic examinations—the study of retinas continues to intrigue us as we unravel more about one of nature's most incredible creations: our eyes.