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SPIE Press is the largest independent publisher of optics and photonics books - access our growing scientific eBook collection ranging from monographs, ...

The Original Pilot was first released to provide the US military sunglasses in 1958. Expect uncompromising quality - engineered to rigid military specifications.

It’s no coincidence that AO Sunwear was the choice of JFK, the first astronauts on the moon, and has been immortalized in Hollywood history.

There’s a reason some things never go out of style. Marrying form, function, and quality, AO sunglasses have the power to last through the decades. It’s not about fads, it’s about creating designs that become an integral part of your look. Find your go-to AO style below.

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The MTF describes how well an imaging system performs in depiction of fine structures with minimal blur. Image quality can be improved with increased signal ...

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Why Choose Brown Frame Sunglasses? Timeless style: Brown sunglasses are as classic as it gets; they never go out of style.

Metallic sunglasses are always in style. Classic colors, lightweight comfort – what’s not to like. Shop American Optical’s iconic looks.

The first number in eyewear sizing refers to the width of each lens in millimeters. The 55mm sunglasses size fits and flatters an average-sized face and is one of our best-selling sizes.

American Optical proudly offers army-grade sunglasses, originally designed for military personnel, first responders, pilots, and outdoor enthusiasts.

Polarized lenses not only protect your eyes from the sun, they eliminate glare for crisp, clear vision. Shop our polarized sunglasses.

Elevate your style with American Optical’s two-tone sunglasses. Discover the perfect blend of classic charm and modern flair in our diverse range of color combinations and frame shapes.

20241013 — The discovery of a World War II-era bomb forced the partial evacuation of the Sternschanze nightlife district in the German city of Hamburg late Saturday.

Silver glasses look crisp year-round. From timeless aviators to on-trend round frames, AO has the silver sunglasses you’ll want to reach for every day.

Tortoise sunglasses are emblematic of American style and a key part of any wardrobe. Our tortoise frames are handcrafted in the US from the finest acetate sourced from around the globe.

Apr 21, 2022 — Second-focal-plane reticles are the best choice if the scope will see a third or more use in the lower half of the magnification range. SFP ...

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Diabetic macular edema: In people with diabetes, blood vessels in the retina can become leaky. This causes swelling in a part of the retina called the macula.

OCT is a common eye care test. It is used when you may be at risk for eye disease or when you already have an eye condition.

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A pinion is a round gear—usually the smaller of two meshed gears—used in several applications, including drivetrain and rack and pinion systems.

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Eye disease in babies: Babies born before the 37th week of pregnancy or at a very low weight are at risk for a condition called retinopathy of prematurity. This happens when abnormal blood vessels grow in the retina.

Elevate your style when you wear classic sunglasses from American Optical. Wearing our timeless shades offers a perfect blend of elegance and functionality.

Optical coherence tomography helps diagnose, treat and manage the eye diseases that are the leading causes of blindness.

Make your day a little rosier with rose gold sunglasses. 23K rose gold plating brings a modern touch to timeless AO sunglasses.

Get uncompromised comfort and unparalleled style with American Optical’s exclusive collection of sunglasses without nose pads.

OCT was co-invented by David Huang, an OHSU ophthalmologist and biomedical engineer. It’s now a standard test for finding conditions that can cause vision loss, often before patients notice symptoms. OCT is used in more than 30 million eye procedures each year.

Oregon Health & Science University is dedicated to improving the health and quality of life for all Oregonians through excellence, innovation and leadership in health care, education and research.

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How to Measure MTF and other Properties of Lenses · where Frequency is measured in line pairs (cycles of dark-light) per millimeter. · In the above expression f ...

Why Choose Square Sunglasses from American Optical? There are several benefits in choosing square sunglasses from American Optical.

AO’s collection of full rim sunglasses is full of iconic styles, like the Original Pilot, Saratoga, General, and Sirmont.

When shopping for plastic sunglasses, choose quality over inexpensive injection plastic. Acetate is a high-quality, durable plastic material with a rich look and feel.

Often called JFK sunglasses for the man who made this style a classic, the Saratoga is a cult favorite that flatters everyone.

Macular degeneration: In age-related macular degeneration, a part of the retina called the macula is damaged, causing loss of central vision.

The dark gray finish of gunmetal, aka dark ruthenium, lends a classic, easy-to-wear vibe to American Optical sunglasses. Learn more about our gunmetal frame glasses below.

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OCT scans a beam of light to create 3D images that show the retina’s layers in microscopic detail. OCT can also image the optic nerve, which connects the eye to the brain.

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Diabetic retinopathy: If people with diabetes have excess blood sugar over a long time, it can damage the retina and its blood vessels.

Step into the world of American Optical’s festival sunglasses: a dazzling array of eclectic eyewear designed to enhance your style.

There are lots of reasons that wire framed sunglasses are always in style. The low profile frames don’t get in the way of your field of vision.

Why Choose Black Framed Sunglasses? They’re a no-brainer. AO is known for timeless style, and nothing is more timeless than black sunglasses.

Level up your look with teen shades that make a statement while protecting your eyes. Shop popular styles to find the perfect frames that show off your personal flair.

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Lens width is an important consideration when shopping for sunglasses. This curated collection features 52mm sunglasses. Explore new styles in your size.

The OHSU Casey Eye Institute is a leader in developing noninvasive imaging to help prevent vision loss. Dr. Huang, our associate director and director of research, is known worldwide for his vision research and inventions. He holds 42 patents and has won top prizes in vision research and biomedical engineering.

OCT of the eye is noninvasive, meaning it does not enter or even touch the eye. Standard OCT uses invisible infrared light, so it is more comfortable than imaging that uses visible light.

What can anOCTscan detect

In 1904, American Optical released the very first driving goggles. Our commitment to protecting drivers’ vision is as strong as it was over 100 years ago.

CCS INC., a leader in the machine vision industry since 1993, provides innovative LED lighting solutions for inspection. As an official distributor, Proax ...

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Cornea disease: The cornea is the clear front window of the eye. Damage to the cornea can make vision cloudy or out of focus.

As we age, our eyes need extra protection from sunlight’s glare and UV rays which can lead to age-related macular degeneration, cataracts, and other eye diseases.

Optical coherence tomography creates highly precise 3D images. It is most commonly used to image the retina in the back of the eye.

Glaucoma: Glaucoma damages the optic nerve, which connects the eye to the brain. It commonly causes loss of peripheral vision.

Surface Roughness Terminology. This section explains the terms used in ISO 25178 Surface Texture. Angular spectrum (graph), The angular spectrum indicates ...

Often called JFK sunglasses for the man who made this style a classic, the Saratoga is a cult favorite that flatters everyone.

Whether you’re searching for men’s gray sunglasses or gray tint sunglasses for women, we have a wide range of different styles to suit your individual taste and protect your eyes.

AO’s 23k gold plated sunglasses blend premium quality with timeless style. Gold frames add a touch of sophistication to any style, from aviators, to round and even cateye styles.