In order to achieve maximum fluorescence intensity, a fluorophore (often termed a dye) is usually excited at wavelengths near or at the peak of the excitation ...

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Most people who have a single episode of optic neuritis eventually recover their vision without treatment. Sometimes steroid medications may speed the recovery of vision after optic neuritis.

Signs and symptoms of optic neuritis can be the first indication of multiple sclerosis (MS), or they can occur later in the course of MS. MS is a disease that causes inflammation and damage to nerves in your brain as well as the optic nerve.

Barrel distortion is one of the most common lens distortions in photography, and it generally happens when you use a wide-angle lens (or the wide portion of a ...

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Basically when using lower magnification microscope objective lenses (4x, 10x, 40x) the light refraction is not usually noticeable. However, once you use the ...

A HeNe laser (also helium-neon laser or he-ne laser) is a type of continuously operating, or continuous-wave (CW) gas laser that uses a mixture of helium and ...

Besides MS, optic nerve inflammation can occur with other conditions, including infections or immune diseases, such as lupus. Rarely, another disease called neuromyelitis optica causes inflammation of the optic nerve and spinal cord.

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Your risk of developing multiple sclerosis after optic neuritis increases further if an Magnetic resonance imaging (MRI) scan shows lesions on your brain.

Normally, the myelin helps electrical impulses travel quickly from the eye to the brain, where they're converted into visual information. Optic neuritis disrupts this process, affecting vision.

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NEEWER offers a wide range of lens adapters. Whether you need an EF mount adapter or an M mount adapter, you can find the product you want here.

Bandpass filters are used to filter narrow spectral ranges. They only permit light at the defined operating wavelength to pass through and suppress the rest of ...

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Tiffen 52mm Circular Polarizer Filter 52CP Filters Camera Filters Glass cameras 52mm Tiffen 52mm Circular Polarizer Filters are used to select which light ...

Pitch, Roll & Yaw. Sacral motion can be compared to that of an airplane undergoing pitch, roll, and yaw, where sacral flexion/extension is comparable to pitch, ...

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Optic neuritis occurs when swelling (inflammation) damages the optic nerve — a bundle of nerve fibers that transmits visual information from your eye to your brain. Common symptoms of optic neuritis include pain with eye movement and temporary vision loss in one eye.

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Related glass types ... N-BK7 is a very pure universal optical glass made by SCHOTT. It is one of the most common standard glass types used to produce high- ...

Eye conditions can be serious. Some can lead to permanent vision loss, and some are associated with other serious medical problems. Contact your doctor if:

The exact cause of optic neuritis is unknown. It's believed to develop when the immune system mistakenly targets the substance covering your optic nerve, resulting in inflammation and damage to the myelin.

where: n is the order of diffraction, λ is the diffracted wavelength d is the grating constant (the distance between successive grooves) θi is the angle of ...

The optic nerve is a bundle of nerve fibers that serves as the communication cable between your eyes and your brain. The nerve fibers have a special coating called myelin.

Multiple sclerosis. Multiple sclerosis is a disease in which your autoimmune system attacks the myelin sheath covering nerve fibers in your brain. In people with optic neuritis, the risk of developing multiple sclerosis after one episode of optic neuritis is about 50% over a lifetime.