Eyelid Neuroma Associated With Swim Goggle Use

The use of plastic swim goggles has been associated with several complications including supraorbital neuralgia, periorbital leukoderma, contact dermatitis, and even traumatic ruptured globe.1-2 Others have reported on the "competition swimmer's eyelid syndrome," a pseudobaggy eyelid localized to the medial part of the superior eyelid.3 The authors described 2 young, competitive swimmers with localized swelling of the upper eyelid related to their use of swim goggles. The report did not include microscopic analysis of the involved tissue, and the authors believed that the swelling was due to microtrauma from the rims of the plastic goggles.

We report our experience with the swimmer's eyelid syndrome as well as histopathologic analysis from one patient. It appears that traumatic neuroma is the cause of the mass effect in swimmer's eyelid. Report of a Case. A 22-year-old man had a 5-year history of bilateral upper eyelid masses, which was worse on the right side. The patient had been in competitive swimming for 9 years and used hard plastic swim goggles. He denied any previous episodes of facial or ocular trauma.
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Why use a tripod?

Eliminate Blurry Photos, A steady camera is essential for a sharp photo. Any slight movement such as pressing the shutter can cause a blurry photo. Blurry photos can be undetected until you download the image into your computer and display the photo on a bigger screen. Some features on a digital camera require a steady platform.

Depth-of-Field, Photography for selling merchandise online requires as much detail as possible without special effects. Keep the depth-of-field as long as possible. For instance, a larger aperture (smaller f-number, e.g. f/2) has a shallow depth-of-field. Thus, anything behind or in front of the main focus point will appear blurred. A smaller aperture (larger f-number, e.g. f/20) has a longer depth-of-field. Objects within a certain range behind or in front of the main focus point will appear sharp. A steady camera is key for this type of shot. Close-up or Macro-mode Photography, Smaller items may require macro photography or close-up photography. Macro-mode changes the camera's optics to be able to focus within 12 inches or less. A good macro lens attachment may be needed if your products are small or you want to emphasize on a particular area of the product.
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Variable Angle Spotting Scope

Most scopes require the user to strain their necks at certain angles in order to view objects from far away, but the Variable Angle Spotting Scope solves this potential neck strain problem by relying on a similar refracting telescopes prism system that can be tilted up to 90 degrees for the optimum viewing angle. This is also great for observing wildlife since it is able to tilt smoothly without resulting in any clicks that might scare off wildlife in the vicinity. Features include a 60mm objective lens and eyepiece lens that come fully-coated with a microscopic film of magnesium fluoride for optimal light transmission. You can even wear eyeglasses while observing, thanks to the 41mm eye relief. You can pick up this rather nifty scope for $299.95 from Hammacher.

It may not fit your birding style or your requirements for durability, field of view, low light capability, etc. Pick the spotting scope with the features and performance you and your budget will be comfortable with – but don’t underbuy, either. Buy the best optics you can afford. As we’ve said before, good optics are a lifetime investment – and investing in quality always pays visible dividends.
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How to Pick the Right Spotting Scope

Picking the right spotting scope is easier than picking the right binocular. There are fewer decisions to make and fewer models to choose from. It’s almost a matter of letting your budget decide which spotting scope is best for you.

If serious photography is planned, keep in mind that catadioptric scopes (and the few high-end prismatic exceptions noted in our catalog, particularly those with ED glass or fluorite optics) generally make better telephoto lenses than a small prismatic scope.If low light performance is important, look for the highest twilight factor.If you spend a lot of time in the field, look for a reasonably light weight.If you expect rough treatment or regular soakings, consider a rubber-armored and/or waterproof scope.If getting the sharpest, highest contrast image possible is more important than convenience or price, consider single power eyepieces rather than a zoom. Also consider ED glass or fluorite lens systems for ultimate sharpness.From $200 to $2000, each time you double the retail price of a spotting scope you can expect about a 10-15% improvement in optical performance.
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What Will Future Space Telescopes Observe?

Even with the help of large space telescopes, we might never find the answers to some of the most intriguing mysteries of the universe. Though mankind has a number of space telescopes in the close orbit of the Earth, scientists want even more powerful tools to make detailed observations of the universe, to build better models that would fully explain the galaxy formation process, or to understand the mysteries related to quasars and black holes.

The biggest space telescope so far will be launched in 2013 by NASA and will have a segmented mirror with a total diameter of 6.4 meters, meaning it will have a light collecting surface area about seven times that of the famous Hubble space telescope. The James Webb Space Telescope, with its high resolution will be able to see further back in time, to observe objects that now look to the other space telescope like fuzzy blobs of light. By being able to see further back in time, JWST will have the capability of viewing galaxies billions of years into the past, to observe the arms filled with stars of spiral galaxies and learn how some types of galaxies evolved, enabling astronomers to rapidly expand the scientific knowledge.