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The Normal Field of Vision

 The normal field of vision refers to the area that can be seen by an individual without moving their eyes or head. It is typically measured in degrees and can vary slightly from person to person. The average normal field of vision is around 200 degrees, with some variation based on age, sex, and other factors. The normal field of vision can be divided into two main categories: central vision and peripheral vision. Central vision is the area of the visual field that is directly in front of an individual and is responsible for detailed vision tasks such as reading and writing. It is typically around 5 degrees and is centered around the fovea, a small area in the retina responsible for high acuity vision. Peripheral vision, on the other hand, is the area of the visual field outside of central vision and is responsible for detecting movement and changes in the environment. It is typically around 195 degrees and is less sensitive to detail and color compared to central vision....
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The Sensory Nerve of Eye

The sensory nerves of the eye are a group of nerves that transmit information about the visual environment from the eye to the brain. They are responsible for allowing us to see and perceive the world around us. In this article, we will explore the anatomy of the sensory nerves of the eye, the role of these nerves in vision, and common conditions that can affect the function of the sensory nerves. The Anatomy of the Sensory Nerves of the Eye The sensory nerves of the eye are part of the optic nerve system, which consists of the optic nerve (CN II) and the retina. The optic nerve is a large nerve that originates in the retina and carries visual information to the brain. It is responsible for transmitting information about the visual environment from the eye to the brain. The retina is a layer of light-sensitive cells at the back of the eye that are responsible for converting light into electrical signals. The retina contains two types of photoreceptors: rods and cones. Rods...
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Scleritis

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