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Well there is, you can buy them online. Many online opticals have popped up around the internet, these stores offer a greater value for your money. Online optical stores offer eyeglasses at a lower price due to their higher volumes and lower overhead. The only drawback is that you cannot try the frames on over the internet, some stores have solved this with digital try on. Others offer to send you multiple samples to try on to help make your decision easier. You do have to be aware, as some are processed in China and can take multiple weeks to receive. Not all online eyeglass retailers are inexpensive; some have comparable prices to your local optical without the personal service you receive locally.

To purchase your eyeglasses online you will need your Rx from your doctor and you will need a PD (pupilary Distance), which is the distance in millimeters between your pupils. Most people have their Rx available, but don’t have their PD. To find your PD the easiest way is to stand in a mirror (or have a friend) with your current glasses on and take a sharpie and dot the center of your pupil on each lens then measure the distance between the two dots. Next you have to choose your frame; this is a personal choice along with a technical. You have to love your new frames as they will be with you all day every day.

The frames also need to be correct for your prescription, if you wear a progressive lens you will need a frame tall enough to let you change from distance to near. If you have a high prescription you will want the smallest frame to make it the thinnest possible. Next you will need to choose the type of lens you need. If you have a higher script you might want to look into higher indexes. The higher the index the thinner the lens, standard plastic is 1.50 and the highest index available in plastic is 1.74. The higher the index the higher the price is going to be. Also you will need to decide if you want a single vision, bifocal, trifocal or progressive style lens.

It should take less than 2 weeks to receive your new glasses. Once you receive your new eyeglasses you will need to adjust them to sit on your face correctly. You can adjust plastic frames by dipping them in hot water to soften up the temples. Also be careful adjusting nose pads as they are usually attach on thin metal that can break if over bent. Now that you have the best eyeglasses for a great price, Take good care and they will last until your doctor changes your prescription. Then you know where to get your nest pair of discount eyeglasses.

Tony Lea- 25 years of optical experience

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Actually, It is the second most common vascular retinal disorder after diabetic retinopathy. Many of my friends were confusing vein occlusion with artery occlusion, but I always believe that if we understand something we will never confuse it with any similar thing.

You don’t need to study anything to answer the following question in an ophthalmology exam “Discuss central retinal vein occlusion.”

Let’s think together!!

First of all, any vein functions to carry blood away from the tissue it is draining (retina in this case). If the vein is occluded (information from the question you didn’t study) blood will not leave the retina leading to filling of blood vessels with blood, then they become tortuous and dilated. The increasing pressure on the wall of blood vessels will lead to retinal hemorrhages, edema which may reach the macula or the optic disc. That’s the picture that you will see on fundus examination of a patient with retinal vein occlusion. In addition you may find cotton wool spots which indicate capillary occlusion.

This will lead to gradual diminution in vision due to the direct effect on the retina with the haemorrhages, exudates and cotton wool spots.

I understood RVO but what caused it?

Something led to occlusion of the vein. This thing may be an internal cause like a thrombus that accumulated inside the lumen and occluded it. Predisposing factors for this thrombus include hypertension, diabetes mellitus and blood diseases (leukemia, polycythemia, sickle cell disease).

This thing may be also external like something pressing on the vein leading to its closure such as in cases of glaucoma and increased intraocular pressure or in cases of tumors pressing on the veins.

Management of retinal vein occlusion

It remains controversial however there are different approaches to treatment including:

Control of the cause which may be hypertension or diabetes.Give the patient anti platelet drugs such as aspirin to prevent the enlargement of the thrombus.After relief of the haemorrhages try to detect ischemia (areas of low blood supply) using fluorescein angiography.

In ischemic cases and neovascular glaucoma, Laser photocoagulation or intravitreal injection of steroids and anti Vascular Endothelial growth factors (anti VEGFs) can be used to prevent neovascularisation and oedema. I hope it now clear and differentiated from the retinal artery occlusion (RAO) and other abnormalities in the fundus examination for the medical students and interested people from the general public. I hope that this article helped you.

Ahmad AL Menabbawy decided to make medicine easy to understand for both medical students and the general public interested in medical topics and he is putting his work all together on his website http://www.2easymed.com.

Article Source: http://EzineArticles.com/?expert=Ahmad_AL_Menabbawy

The purpose of Eyeglasses is to protect eyes and avoid dust that exists in the air. These are very useful for different purposes such as protecting the eyes from dust and harmful particles and as protection against the harmful radiation from the sun.

Specs with powered lenses have the ability to improve one’s eyesight. They are usually worn by people who have an eyesight or vision problem. With the help of these powered lenses one can view his/her surroundings clearly. Safety glasses are those which protect the eyes from dust and its particles. Sunglasses provide a better vision in day light. Other glasses such as 3D glasses are only used to watch 3D movies.

In earlier days, there were specs with wooden frames and were handmade. The highlight of these glasses used to be that they were made by skilled artists.

Today, people are trying old-fashioned glasses. These are suitable for every individual and can be worn on many occasions. These glasses are named retro vintage sunglasses. To gain elegance, one can choose black vintage glasses that are mostly suitable for oval, long faces. Bold retro vintage glasses are often preferred by party animals.

In contemporary world, every individual makes sure to have designer spectacles to suit their outfit. One can find designer sunglasses that are attractively stylish and available in many colors. Multi-colored glasses can impart an attractive look to wearers.

Buying everything online has become a part of every individual’s life. There are branded and designer glasses that can be booked online. Buying online is much cheaper when compared to buying from a showroom.

Buying things online can save a lot of time too. During selection at online stores, if one gets confused, he/she may call the customer care and get a quick answer. People find online designer and branded eyewear stores more attractive with affordable prices.

Online retailers buy all kind of branded and designer glasses in bulk and sell them for low prices which are quite affordable.

Spectacles are being replaced by contact lenses today. There are different types of contact lenses. To have better vision, one should use corrective contact lenses. These are very delicate and small in size, exactly the size of cornea of an eye. Eyes of an individual can look differently by using Cosmetic contact lens.

There are many branded companies like Ad Lib glasses, Bongo glasses, Ferrari glasses, Ray Ban glasses, Titanium glasses, Vogue glasses, Hugo Boss glasses et al. Today millions of people are using all kinds of contact lenses and eyeglasses as per their requirement.

The Author of this article is an expert on the latest trends pertaining to designer eyewear. He has written many informative articles on various eyewear brand such as Fastrack sunglasses, MTV sunglasses and Vintage sunglasses. Buy Discount sunglasses and Eyeglasses at lenskart.

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