Compared with the traditional way of pupil dilation, Optomap retinal exam provides no discomfort to the patient, for the images taken are resulted from brief flash, and the patients, even the light sensitive ones, will not object to it; Optomap retinal exam presents a wider view of the retina, allowing the doctors more probably to do further investigations. Traditionally, when the doctors need to get a wider view to get some further exams, they have to dilate the patient’s eyes for 4 to 6 hours. It, on one hand, is a rather painful progress for the patients; on the other hand, they patients would experience a temporary blurred vision.

Of course, pupil dilation bears its own advantages. The biggest one is that by using an instrument that is worn on the doctor’s head called a binocular indirect ophthalmoscope(BIO) and asking the patient to look in different directions, a 3D(stereo view) fundus can be viewed. A good retinal camera will allow the examiner to see about 30% of the back of a patient’s eye at one time. By taking numerous images and piecing them together up to 60% of the fundus is viewable with a retinal camera.

Because of the respective comparative advantages of the two methods, one should select the proper one according to his/her own eye condition. Generally speaking, Optomap is for everyone, but the most recommended ones are those who can’t or don’t want to be dilated, children, anyone with a history of retinal problems and people that are light sensitive. It should be a wise choice if one get his/her retina checked once a year, because it will effectively discover the potential pathological changes and prevent its further development.

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Many physical problems can be detected via analyzing and diagnosing iridology charts- most problems can be reflected in certain areas of eyes. This is also why so many specialists tend to employ these charts in practice.

In fact, iridology is just used to detect or analyze something, not for treatment. But it really plays very important role in detecting some problems via the unusual refection of iris. What’s more important, it can help to detect some potential problems that have not occurred. Usually, if there is anything unusual, some further exam will be prompted.

People will find it is not an easy job to read these charts. Iridology charts try to divide eye into different parts, according to its functionality. In other words, each real part can find a reflected area in the image. This is also why so many specialists tend to use these charts if they have to analyze a certain area in practice. Of course, the whole process will be finished via compute system, which can ensure great accuracy. If there is any problem, other studies will be furthered.

Of course, these abnormal symptoms do not mean the same problems though in the same area. Or the same symptom can be caused by several different problems and further analysis is needed.

On the whole, iridology charts can do a lot of help for people who know little or nothing about iris (they can also help specialists). They can be found online or in many books. Keep in mind that these charts are just used to screen the possibility of certain problems and further exams are needed if there is anything unusual.

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Of course, accurate checkups are needed to further confirm the diagnosis. First, the ophthalmologist or optometrist will give you tests to check your visual acuity. It is a common test in which you will be asked to read letters from an eye chart. And then comes to the Keratoconus diagnosis. There are several test concerned.

Retinoscopy is one of the tests confirming Keratoconus. When a light is focused on the retina, if the reflex or reflection can be observed. It is a sign of Keratoconus; but when there is a scissor reflex, another test, usually a cornea ultrasound(Pachymetry), will be needed for the confirmation. Keratoconus patients usually have thin corneas.

A slit lamp, or Microscope, can be used in the Keratoconus confirmation as well. If there are yellow-brown or olive-green rings, the patients are probably one of sufferers of Keratoconus. The yellow-brown or olive-green rings, also referred as Fleischer ring, can be seen in 50% of the patients with Keratoconus. They are caused by Iron Oxide Hemosiderin that is deposit in the Cornea Epithelium. Other symptoms of Keratoconus include fines lines or stress lines caused by stretching. They appear on the front of the cornea; and munson’s sign, which is a V-shaped indentation. When the patients moves their line of sight in the downward direction, the V-shaped indentation can be observed in the lower eyelid. The muson’s sign is a symptom which would appear in the later stage of Keratoconus, therefore it is seldom used for diagnosing keratoconus.

Keratoconus is a complex and intractable eye disease. Sometimes it can not be confirmed by merely one test and several ones are needed, because some symptoms of other eye disease would appear to be similar to that of Keratoconus. Find a professional to get your eyes checked, so that the diagnosis would be accurately confirmed.

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On the whole regular eye exam can do people a lot of benefits. But what should the frequency be. People who are younger than forty should get one eye exam every two years and annual check is needed as they age. Of course, it is also a good idea to receive eye checks every year, no matter what their ages are. But one point should be noticed that people with certain vision problems should get eye exams according to their eye doctor’s suggestions.

For example, some age related vision problems, like AMD, cataracts, are progressive problems and will lead to horrible results when some symptoms occur. But they can be well treated if detected at early state.

Of course, the importance of regular eye exams can never be ignored among people in other age group. For example it is needed for kids to receive eye exams at regular intervals. Doing so can avoid and predict many problems.

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Or in some cases, eye exams must be finished in aid of some of the latest technology and information. This ensures these checks are accurate and effective. And our detailed eye information can be well detected in the process. Or some of these exams can even help us detect physical diseases of certain kinds.

It is found that most of we Americans are threatened by various sorts of eye diseases. But most of these problems can be detected via early eye check. Therefore, we should try to get regular eye exams annually.

When we want to get eye exams, we should first contact an eye doctor, either optometrist or ophthalmologist. And it is needed for us to ask some details about the exam and something we do not know in the process. Doing so can help us know something more about eyes and eye health.

Though most of us are suggested to get eye exam annually, more checks are needed within a year if we have particular vision errors in certain age group. If there is any better ways for treating our vision problems, we may ask eye doctor for more details. And we should still make a plan for the next exam- it is better to make an appointment after the check.

In addition, it is a good idea to let other people around knows the importance of getting eye exams regularly. And if we want to have more detailed information about these exams, like eye doctors, procedures, etc., we can visit some special websites for help.

In a word, it is needed for us to receive regular eye exams and keep eye health. Prevention is much greater than treatment.

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On the whole, eye exam is suitable for people in almost all groups. Especially, babies should get eye exam sometime after birth. This can tell whether or not there are any problems in the eyes. Kids in other ages should also receive such eye checks regularly, so as to avoid some problems. This is because non-adult’s eyes are always in the process of growing and are vulnerable to various sorts of eye diseases. In addition, people who become older are also suggested to get eye exams regularly. This is because people’s eyes become degenerated when they are over forty. This is also why there are so many age-related eye problems, which will show no obvious symptoms at early stage. And when the symptoms occur, permanent vision damage or blindness is the ultimate result.

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The whole eye exam process is very complex. Eye doctors will first decide whether or not the receivers are good candidates by asking a lot of questions. People in certain eye condition can not wear lenses. After that, an eye check will be operated- this is the same as in eye exam for glasses. The eye doctors will make some observations on the eyes and their structures and reaction to certain drops, etc. After that, the eye condition of the patients can be well detected.

When the patients are proved ideal candidates for lenses, they will receive some examination for lenses. Unlike exam for glasses, this exam is really very complicated and personalized- patient’s eye balls, sizes, and other factors will all be measured in the process. Of course, the whole process is operated with the help of some high-tech equipments, which can accurately measure the sizes and other data.

Later, some other aspects, like how health the corneas are, will all be measured and tested. For example, in order to know how patient’s eyes react to lenses, its moisture will also be measured. And the result is every patient’s contact lenses are completely individualized and can not be worn by others.

After that, when every data is measured, the eye doctor may suggest patients to try on some trial contact lenses. This process is very important, for it determines whether patients can get used to lenses or not. Of course, the trial process is also time-consuming. Usually, people have to try on many pairs until their get the ones fit them most. While trying, eye doctor will also offer some guidance on how to insert and remove lenses. Other suggestions on eye health and lenses maintenance will also be given in details.

When people have brought their lenses home, they should also revisit their eye doctors regularly, until their eyes completely adapt the lenses and they know how to use the lenses. If there is anything unusual, just contact eye doctors for help.

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The vision of 20/20 is that you can read the letters on the 20/20 line correctly when you stand 20 feet away from the Snellen eye chart, which is considered normal. If you have 20/30 vision, you can only see what a person with 20/20 vision can see at 30 feet when you stand 20 feet away from the eye chart. Analogically, with a 20/40 vision, you can see what a person with 20/20 can see at 40 feet when you stand 20 feet away from the eye chart.

From the above explanation, we can see that the first number is always 20 which is the distance to the eye chart while the second number is the distance at which a person with 20/20 could read the line. The lowest line that you can read on the eye chart stands for your visual acuity. The larger the second number is, the worse your vision would be. The Snellen eye chart is the standard on which most eyeglass prescriptions are based because it is considered scientific and infallible, although it is not that scientific at the beginning. In 1862, Hermann Snellen simply based his 20/20 vision measurement on the vision of an assistant whom he thought as a person with good eyesight.

Nearsighted eyeglass check are focused on and prescribed for 20 feet because all readings of the Snellen eye chart are done at 20 feet. Distance vision eyeglasses are suited for looking 20 feet and farther because eyes do not have to focus at this distance, but they are unsuited for looking closer than 20 feet because the eyes must focus to see objects closer than 20 feet.

The 20/20 eyeglasses make the nearsighted eyes adjust focus to see objects closer than 20 feet and further adjust focus to overcome the comfortlessness brought about by eyeglasses prescribed for 20 feet. The eyes are forced to adjust focus, only to result in more nearsightedness that eventually requires bifocal eyeglasses. The Snellen eye chart, upon which most eyeglass prescriptions are based, really measures one visual skill – our distance vision which is only one small part of our vision including near vision, peripheral vision, eye coordination, color perception, light sensitivity, endurance, etc. It is unnecessary to base our eyeglass prescriptions on 20/20 vision because it would eventually and finally harm our eyes.

In fact, optometrist is just a kind of eye doctors. Sometimes, people can not tell what these eye doctors are. In fact, optometrist is eye doctor who is responsible for the examination and prescription for people’s eyes. In most situations, optometrist has to spend a lot of time examining people’s eyes.

When people enter into the office of an optometrist, they are required to sit in chairs for eye examinations. After a long time, the optometrist will get the eye information on which is people’s prescriptions based. Any eye problems can be detected and the solution for them will be reflected in the prescription of the lenses. People of different eye problems will have different prescription.

During the testing, many items are to be checked, such as color viewing, focusing ability, etc. Of course, Glaucoma check is essential with other common eye problems. Sometimes, eye problems are not only caused by pressures and strain, but also other physical diseases, as diabetes, high blood pressure, etc. Anyway, the optometrist will find out the causes of these eye problems. Once the causes of eye problems are detected, the patients are required to receive some therapy.

Many people may wonder what an ophthalmologist is responsible for. In fact, an ophthalmologist is an eye doctor who mainly deals with eye problems and makes some prescriptions. Sometimes, he is also responsible for eye surgery.

Accordingly, optometrists have many things to do. They are responsible for out-calls. They also go between their office and the patient’s home. Sometimes, they have also to manipulate the running of the office.

For any suffers of eye problems, it is essential for them to visit the two kinds of eye doctors simultaneously. But before going, they should know what the two doctors are referring to.

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Vision therapy is a very effective tool to develop visual skills. It is far more about what we Optometrists are measuring rather than the child’s actual performance, compared with the tedious and boring traditional eye exercises purely designed to increase eye coordination and focus skills.

Time and effort should be invested into developing visual skills in vision therapy to help children overcome learning disabilities. It’s not just about the eyes but developing real skills developed by vision therapy, including eye movements, focus and eye coordination, visualization and recall, directionality, cross patterning and other developmental areas like coding, sequencing, fine and gross motor, etc. Eye movements help children flow in their reading and stop misreading words or skipping lines, as well as ball sports. Focus and eye coordination helps children concentrate and apply themselves to their school work. Visualization and recall helps children to effectively remember sight words and spelling, giving them a large vocabulary to help them to read. Directionality helps children with learning disabilities overcome reversals, writing letters back to front. Cross Patterning allows children to use both sides of their brain efficiently.

It has a huge impact on children who display learning disabilities. As for younger kids and preschoolers who may or may not be showing signs of deficiency, vision therapy is a highly effective tool in developing the visual skills that child may need to catch up and move ahead. It works because these skills, which should be developing in children through this period, sometimes are not developed or underdeveloped. If we can develop them quickly and effectively, the child will improve significantly. When it comes to normal children, vision therapy can accelerate their performance and thereby increase the learning ability.

What we need to do is tailor our program to suit the preschool or kindergarten level. That’s why I have produced a home based on vision therapy program just for preschoolers, and it works very effectively in making struggling preschoolers far better, and preschoolers who were performing good, rise to be even better. It is achieved by training the specific areas which really matter in children and their visual development.

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