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Canine eye: a china eye.

Scanning electron micrograph of a honeybee's eye. the honey bee has two large compound eyes made up of thousands of tiny light senstitive cells that detect light, colour and movement.

Honeybee eye

Photomacrograph of a human eye. The human eye is a complex organ and works in a similar way to a camera. Light enters the eye through the pupil (black). The size of the pupil is controlled by the iris (hazel) in order to adjust how much light enters the eye at any given time. Here, the iris is coloured hazel, but other colours such as brown, green, blue and grey can be present instead. Light enters the eye and is focused onto the retina at the back of the eye, which then converts these images into electrical signals and sends them on to the brain to interpret and make sense of. The sclera (white part of the eye) and eyelashes are also visible here. Width of image is 5 cm.

Human eye

Eye paralyses

SEM of the Drosophila compound eye. Close-up shows the multi-faceted cornea and the thin, hair-like structures called setae which are believed to reduce glare.

Drosophila eye

Eye operation.

Maximum intensity projection of a hoverfly (Syrphidae) eye. Autofluorescence (green) from the specimen is seen here. Horizontal image width is 2.1 mm.

Hoverfly eye

SEM of the Drosophila compound eye. Close-up shows the multi-faceted cornea (blue) and the thin, hair-like structures called setae(green) which are believed to reduce glare.

SEM of the Drosophila compound eye. Close-up shows the multi-faceted cornea (pink) and the thin, hair-like structures called setae (green) which are believed to reduce glare.

Early 18th-century Chinese woodcut illustrating 'Weeping Eye' sore (loujing chuang), from Yizong jinjian: Waike xinfa (The Golden Mirror Of Medicine: Essential Knowledge and Secrets of External Medicine).



A medical anthology in 90 juan (volumes/fascicles), Yizong jinjian was executed as an imperial commission by Wu Qian (Qing period, 1644-1911) et al., and printed in Beijing at Wuyingdian (the Hall of Martial Prowess - the imperial printing house) in 1742 (7th year of the Qianlong reign period of the Qing dynasty). Waike xinfa is one of 15 monographs included in the anthology. It is a systematic treatise on Chinese external medicine in 16 volumes. It covers the system of channel (meridians), ulcers and abscesses (yongju), and the treatment of external conditions of various parts of the body. 

It contains 266 illustrations.

Chinese C18 woodcut: External eye - 'Weeping Eye' sore

Dorsal view of the head region in a zebrafish
embryo which has been stained to show neuron
development in the epiphysial region of the
diencephalon, part of the developing forebrain.
This is the region where neurons first develop in
the forebrain. In this 'floating head' mutant,
neurons which should be seen at this stage (see
wildtype B0001159C) are missing from this area.

Zebrafish eye development

This differential interference contrast image
shows a section through the eye of a three-day old
zebrafish embryo. At this stage of development,
the nerve cells in the retina have begun to
separate into different layers. The outer layer of
cells are stained black with a marker for
photoreceptor cells, the neurons that respond to
light. (credit: R. MacDonald & S. Wilson) Biomedical Image Awards 1998.

Light microscope image of a zebrafish embryo
which has been injected with Sonic Hedgehog (shh)
RNA at an earlier stage. The embryo has been
stained with an antibody to Pax6 protein which
indicates early brain and eye development. In this
case, expression of the Pax6 protein has been
inhibited by shh, leading to abnormal development.
(Normal B1091C) Credit: R. MacDonald & S. Wilson

Lateral view of the head region in a zebrafish
embryo which shows neuronal structure in the
epiphysial region of the diencephalon, part of
the developing forebrain. This is the region where
where neurons first develop in the forebrain.
Here, axons labelled with diI can be seen
extending from epiphysial projection neurons.

Transmission electron microscope of a cross section through the compound eye of the Fruit fly (Drosophila melanogaster). The eye is made up of many small rounded units called ommatidia. Many of these units can be seen in this image as a circular cluster of cells surrounded by supporting cells. Inbetween each ommatidium is a single bristle.

Drosophila compound eye

Retinal ganglion cell axons cross at the optic chiasm as they make their way to the to the optic tectum. Confocal micrograph of the brain of a transgenic 60 hour old zebrafish embryo viewed from a ventral aspect. Some neurons express the green fluorescent protein (GFP) - (green) under the control of a specific promotor, which drives expression in retinal ganglion cells, neuromasts, habenulae and the optic tectum. Tracts and axons have been labeled using antibodies against tubulin (red). 




Width of image is 500 micrometres

Eye development, zebrafish

Transmission electron microscope of a cross section through the compound eye of the Fruit fly (Drosophila melanogaster). The eye is made up of many small rounded units called ommatidia. One such unit is shown here center frame, with others surrounding it. Each ommatidium is made up of a cluster of cells surrounded by supporting cells. Inbetween each ommatidium is an individual bristle.

Lateral view of the head of a one-day zebrafish
embryo which has been labelled with anti-tubulin
antibody to show the neurons and axon pathways.

Transverse section through the head of a zebrafish
embryo which has been stained with an antibody to
Pax6 protein to show normal early brain and eye
development. The widespread distribution of this
protein can be seen in the developing eyes on
either side of the forebrain in the midline.

Credit: R. MacDonald & S. Wilson

Metal eye bath

This differential interference contrast image
shows a section through the eye of a three-day old
zebrafish embryo. At this stage of development,
the nerve cells in the retina have begun to
separate into different layers. The outer layer of
cells are stained black with a marker for
photoreceptor cells, the neurons that respond to
light. (credit: R. MacDonald & S. Wilson)

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Canine eye: a china eye.

Honeybee eye

Human eye

Eye paralyses

Drosophila eye

Eye operation.

Hoverfly eye

Drosophila eye

Drosophila eye

Human eye

Human eye

Human eye

Chinese C18 woodcut: External eye - 'Weeping Eye' sore

Zebrafish eye development

Zebrafish eye development

Zebrafish eye development

Zebrafish eye development

Drosophila compound eye

Eye development, zebrafish

Drosophila compound eye

Zebrafish eye development

Zebrafish eye development

Zebrafish eye development

Metal eye bath

Zebrafish eye development

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Canine eye: a china eye.

Honeybee eye

Human eye

Eye paralyses

Drosophila eye

Eye operation.

Hoverfly eye

Drosophila eye

Drosophila eye

Human eye

Human eye

Human eye

Chinese C18 woodcut: External eye - 'Weeping Eye' sore

Zebrafish eye development

Zebrafish eye development

Zebrafish eye development

Zebrafish eye development

Drosophila compound eye

Eye development, zebrafish

Drosophila compound eye

Zebrafish eye development

Zebrafish eye development

Zebrafish eye development

Metal eye bath

Zebrafish eye development

Be the first to know

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