The Different Vision Types: What Do You Have?

A vision type can be as unique to a person as their personality or sense of style. It is different in every single patient, but some visual conditions are quite common. Many of our patients have nearsightedness (myopia), farsightedness (hyperopia), astigmatism or near-perfect eyesight. What is the best vision type and what is the worst? At Optical Masters, we perform comprehensive exams that help us keep your eyes healthy. Let us discover what vision type you have today!
 

• 20/20 – According to the American Optometric Association, this is normal visual acuity (clarity and sharpness) at a distance of 20 feet. That means you can see clearly 20 feet away from an object.

• 20/100 – This is just an example, but those who have a vision type that is 20/100 would have to be 20 feet away from an object that most people can see at 100 feet. The same goes for 20/80, 20/60 and so on when it comes to distance.

• 20/10 – When the numbers go down, that indicates that you have better than average eyesight. When using an eye chart, you can see clearly at 20 feet away what a person with “normal” vision can see clearly at 10 feet away.

• 20/200 – This is the level at which you are considered to be legally blind. That means a person with 20/200 vision has to be 20 feet away from an object to see clearly, whereas a person with normal eyesight can see clearly at 200 feet away.
   

We’d like to make a special note that having 20/20 vision does NOT mean that you have perfect eyesight. It only means that you can see normal sharpness and clarity at a distance. 20/20 is generally the standard baseline with which most people are measured.
 

Common Eye Conditions

• Nearsightedness – This is also known as myopia. A person can see objects clearly when they are close to them, but objects at a distance will appear blurred. Nearsightedness affects about 30% of the population and is easily treated with contacts or glasses.

• Farsightedness – This is also known as hyperopia and is the opposite of nearsightedness. A person can see objects clearly that are far away, but objects close to them are blurry. This is also easily treatable just like myopia.

• Astigmatism – The surface of the cornea or lens is not spherical, causing your eyes to focus at two separate points instead of one. This can cause eye strain, discomfort, headaches, blurred/distorted eyesight, night vision problems and more. We can easily treat astigmatism with proper contacts or eyewear.

• Presbyopia – Condition in which the lens of your eye changes and is less flexible,  making it difficult to focus on objects that are near. This can occur around age 40 and later. There are many visual changes between ages 40-60, but after age 60 they become more severe.

• Macular Degeneration – This is a deterioration of the center part of your retina or the area in the back of the eye that receives the images and sends information to the brain. A person will start to see a gray/black dot in the center of their eyesight which will gradually grow larger. This condition is the leading cause of vision loss and is incurable, however, the effects can be slowed with treatment.

• Cataracts – The clouding of the lens in your eye that can affect only one eye or both eyes. The lens sits behind the colored part of your eye (the iris) and will cloud over, causing light to scatter and blur. You may also see a double vision with objects. This condition generally is caused by age or injury but sometimes can be caused by genetics, past eye conditions, surgeries, chronic illnesses, and medications.

• Glaucoma – Condition where the optic nerve of the eye is affected. The optic nerve carries images from the retina to the brain. Glaucoma often has no noticeable symptoms and is not painful. You will gradually lose your peripheral vision though, and that loss will continue. With frequent eye exams, we can detect glaucoma and greatly slow down the progress of the disease.
   

Our Comprehensive Exams

Did you know we have over 100 tests to measure your eyes with? Some of those include eye coordination, depth perception, color blindness, peripheral vision or awareness, focusing ability and more. With conditions such as glaucoma, a comprehensive exam can literally save your vision, as it can detect subtle changes in eyesight that you may not even be aware of.

With our comprehensive eye exams, we will measure your visual acuity, generally with an eye chart where you will have to identify specific letters and numbers. We will also have your eyes examined through a special machine where we can see if the muscles and tissues inside your eye are functioning properly. The AOA recommends that you receive an eye exam at least every two years, if not more often. If you haven’t had a recent exam, let us check your eyes for any abnormalities. Simply call our Optical Masters office at (720) 780-8881. It could just end up saving your vision!
 

What Do You Have?
– Vicci Eyewear

Vicci Blog

Vicci Eyewear

Jan 03, 2023

Do you know what your vision type is? There are a few different types, and each one uniquely sees the world. In this blog post, we’ll explore the different vision types and discuss what each one entails. If you’re not sure which type of vision you have, keep reading – we’ll help you figure it out!

Hyperopia

Hyperopia is a vision condition that makes it difficult to see distant objects. When the eyeball is too short or the cornea is too steep, images focus in front of the retina, causing it to float. Wearing contact lenses, which allow light rays to pass through your eye and focus on an image on a screen behind it, can correct this type of vision.

Presbyopia

Presbyopia is a loss of close-up vision that occurs in people over the age of 40. This can be caused by a gradual stiffening of the natural lens inside your eye, making it more difficult to focus on close-up objects. Presbyopia usually affects both eyes at the same time, but some people have more difficulty with one eye than the other.

Astigmatism

Astigmatism is a condition that causes blurry vision. It occurs when the cornea, the front portion of your eye, does not form a perfect spherical shape. This can cause one or more of the following symptoms:

• Double vision.
• Blurry vision in some parts of your field of view (called side effects).
• Reduced sharpness of objects in certain areas (called central scotomas).

Myopia

Myopia, the most common vision problem, refers to a refractive error in which the eye is too long or the cornea is too curved. This can cause distant objects to appear blurry while close-ups appear clear. Light rays are focused on the retina at a point closer to its surface than its center of curvature when a person has
myopia. Because they are focused on nearsightedness, distant objects appear blurry.

Aniseikonia

Aniseikonia is a rare condition that affects some people and causes them to see images as being distorted in size. It can be caused by a variety of factors, including refractive error, cataracts, or optic nerve damage. This can
also be caused by tumors or other eye growths. Aniseikonia is a condition that can be treated with glasses, contact lenses, or surgery.

Conclusion

If you have a 20/20 visual acuity (the ability to see clearly), then congratulations! You don’t need any further tests to determine what kind of glasses would work best for your eyesight.

However, if it appears that something isn’t quite right with the way things look through your glasses, or worse yet, if at all possible, without corrective lenses in front of them, then now might be the time for some additional testing by an optometrist before committing yourself financially by purchasing new ones.

You’ve learned about the three different types of vision and their unique benefits. Which type do you have? Knowing your dominant eye can help you understand how you process information and what strategies might work best for you when it comes to learning, reading, or completing other visual tasks.

If you want to learn more about your specific vision type or find out if any treatments could improve your eyesight, talk to an optometrist. Thanks for following along on this journey into the world of eyesight!

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A Mama’s Boy’s Love for His Mother

Vicci™ Eyewear was inspired by a son’s love for his mother and his passion for fashion.

David Abramovici, the Founder of Vicci™ Eyewear, came from a family of artisans dedicated to craftsmanship since the 1920s.

David recalls that when his mother was around 65 years old, she would always ask him to stop by the local pharmacy to pick up some generic readers.

He would spend at least 20 minutes every time he went there, just standing in front of a rack full of tacky, ugly readers. It was difficult for him to choose a “nice” design that he thought would look good on his mother.

His mother enjoyed attending events and spending money on her dresses and accessories. Unfortunately, the readers are often underwhelming, and she was embarrassed to ever be seen wearing them. Like most women, she’d usually hide it in her lovely purse and would always look around before using them to read the menu or bill.

David wondered why there weren’t more choices for high-quality and fashionable custom readers for older women like his mother. Something she’d actually love to wear and be proud to be seen wearing.

And that’s when it hit him!

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“I LOVE the shape of the frames, not a style you see everywhere. very unique but i feel like it’ll be a timeless style. they’re such a great quality. “

– Ava A.

“My new glasses are blue light treated with a progressive premium lens. My glasses have been a definite fashion statement and I will suggest Vicci Eyewear to everyone. Thank you Vicci !”

– Patricia M.

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Human binocular vision, types, disorders, treatment in Krasnoyarsk

Human binocular vision

1. What is binocular vision
2. Conditions for the formation of binocular vision
3. Binocular vision test
4. Types of binocular vision
5. Causes of impaired binocular vision
6. Complications of lack of binocular vision
7. Restoration of binocular vision

1. Binocular vision – the unique ability of both eyes and the brain to combine the information of each human eye into a single three-dimensional image.

To be absolutely precise, binocular vision is a function of the brain that uses information from each eye to create three-dimensional images of the surrounding space.

A special feature of binocular vision is the ability to automatically determine the distance to all visible objects and their parts.

The presence of binocular vision has been confirmed not only in humans, but also in many animals.

Human binocular vision is one of the five main functions of the eye.

At the same time, binocular vision has a fundamental difference from all other functions of the eye (central vision, peripheral vision, color and light perception). Binocular vision is possible only with simultaneous full and accurate work of both human eyes.

If all other functions are determined for each eye separately and they characterize the work of each eye separately, then in the study of binocular vision, the synchronous simultaneous work of both eyes is determined.

2. Necessary conditions for the formation of binocular vision

An indispensable condition for the presence of binocular vision is good vision in both eyes , synchronized work of the oculomotor muscles of both eyes and training of the brain to perceive information from both eyes and merge it into a single picture.

Each point of the retina of one eye corresponds to a strictly defined point on the retina of the other eye. These points are called the corresponding retinal points. And if the rays from one object fall exactly on the corresponding points of the two eyes, then the brain can merge the information from each eye into a single image.

For this process, or the presence of binocular vision, the information falling on the corresponding points of the retina must be equally clear and the same in area.

If one eye sees worse than the other, then there will be clear lines from the object on one eye, and blurry lines on the other. The brain will not be able to merge two objects of different clarity, and binocular vision will be absent.

The first prerequisite for the presence of binocular vision must be the presence of high visual acuity of each eye. The difference in visual acuity between the eyes cannot be more than 6 lines of the table.

The second condition is the same or close refraction of both eyes . When using spectacle or contact correction, the area of ​​the object on the retina changes. Anyone who wears glasses knows that minus glasses reduce all objects, while plus glasses increase them. Therefore, if the correction is different in strength before the eyes, then the area of ​​the object on the retina will be different and the rays will not fall on the corresponding points, which means that the brain will not be able to merge information into a single image and there will be no binocular vision.

The third condition for the presence of binocular vision is synchronous work of the oculomotor muscles , which are capable of directing the eyes exactly to the object. With an unbalanced work of the muscles of the eye, strabismus will be present and binocular vision will be absent. Thus, the absence of strabismus is a prerequisite for the presence of binocular vision.

3. Binocular vision examination

Binocular vision examination can be carried out both in a medical institution and at home.

Determining the presence of binocular vision in a clinical setting:

The most common way to determine binocular vision is with a 4-point color test.

The essence of the study is very simple. The patient puts on glasses with glasses of different colors, red – in front of the right eye and green – in front of the left eye.

Then the patient is asked to look at four luminous points. Two green, one red, one white.

In the presence of binocular vision, the patient sees all points in the same color.

If the patient sees two red dots and two green dots, then he has binocular vision with the dominant right eye. If he sees three green and one red dots, then the patient has binocular vision and his dominant eye is his left.

Thus, in the presence of binocular vision, a person always sees 4 points on the color test.

Violation of binocular vision gives a different picture on a four-point color test.

If the patient sees only two dots of red, then he has monocular vision of the right eye, if he sees three dots of green, then he has monocular vision of the left eye, if he sees five dots, this means that the nature of the patient’s vision is simultaneous.

Any impairment of binocular vision does not allow a person to see the surrounding world in volume and determine the distance to objects. Such people see the world in one plane, which does not allow them to correctly determine the distance to objects. This can be very dangerous, for example, when driving a car, playing sports such as skiing, paragliding, auto and motorcycle racing, and many others.

Binocular vision test at home:

Binocular stereoscopic vision can also be tested at home. The easiest way to determine if binocular vision is present or impaired is with the tube and palm test.

Looks into the distance with one eye through a tube folded from paper, and places his hand in front of the other eye at the level of the end of the tube. In the presence of binocular vision, images are superimposed and the patient sees a hole in the palm, and all objects visible with the second eye.

According to the above information, we can talk about several types of binocular vision and its disorders.

4. Types of binocular vision
1) binocular vision perfectly balanced in both eyes

2) Binocular vision with leading right eye

3) Binocular vision with leading left eye

Types of binocular vision impairment

1) Monocular vision of the right eye

2) Monocular vision of the left eye

3) Simultaneous vision

5. Causes of binocular vision impairment

The most common causes of binocular vision impairment:
1. Decreased visual acuity in one or both eyes
2. The presence of different refractions in both eyes (anisometropia)

3. Presence of strabismus

4. Pathology of the visual analyzer and pathways (pathology of the retina and (or) optic nerve).

5. Obscurative causes of vision loss (thorns, cataracts).

6. Complications of lack of binocular vision

Binocular vision makes it possible to see in volume and automatically determine the distance to various points for a person.

This allows you to estimate the depth on the surface of the earth when walking, determine the distance between walking cars, estimate the distance when playing sports, such as playing basketball or skiing.

In the absence of binocular vision, life becomes more dangerous than in people with the preservation of this function.

It is impossible to master a number of professions in which the presence of binocular vision is a prerequisite (drivers, high-altitude workers, military, and others).

People with a lack of binocular vision are also unable to access many sports that require estimating the distance between objects.

The smallest problem for people with binocular vision loss is the inability to watch movies in 3-D. Since it is the presence of binocular vision that allows you to see the film in volume. Any attempts to watch such a film result in headaches and other asthenic complaints.

This point is often overlooked by cinemas with 3D format and do not warn customers about the need to have binocular vision when watching movies, so as not to cause painful symptoms of the brain.

The question arises reasonably.

How do people see without binocular vision? Is it possible to drive a car without binocular vision? Exercise?

People without binocular vision cannot automatically estimate the distance to objects, so they learn to estimate the distance between objects based on the analysis of the relationship of objects to each other.

So if one car is near the beginning of the house, the second is in its middle, the third is at the end of the house. So the analysis says that the first car is closer, the second is farther, and the third is the farthest.

If one tree grows near the fence, and the second between the fence and the eyes. So the tree is next to the fence.

The lack of automatic determination of distances to objects in space is replaced by a constant analysis of the location of objects among themselves. So a person with a lack of binocular vision can estimate the distance to objects.

Thus, the absence of binocular vision is not a contraindication to driving a car, but the risk of an accident increases.

Since, if the gaze has nothing to attach to, then the whole picture is seen in a single plane and a person cannot determine the distances to objects in such a situation.

This applies to all sports where you need to quickly estimate the distance between objects.

7. Treatment and training of binocular vision

To restore binocular vision, it is necessary to identify and eliminate the cause that caused its violation.

Need to restore visual acuity in both eyes. The best tool for this is laser correction. Since spectacle correction does not always increase visual acuity to the required values, especially in the presence of astigmatism. You also need to remember that correction with glasses or lenses will not give the desired result in the presence of anisometropia.

Strabismus, if any, needs to be corrected. Since binocular vision with strabismus simply does not happen, because a prerequisite for its presence is the need to look at an object with two eyes that have good vision.

It must be remembered that the formation of binocular vision occurs from the moment of birth, when the brain learns to see and use stereoscopic vision. Therefore, it is very important to eliminate all the causes that interfere with the formation of binocular vision, even in childhood.

After removing the cause of the disturbance, binocular vision will begin to recover on its own. The brain will begin to learn to merge the information of each eye into a single image. And the sooner this happens, the easier and faster binocular vision will be restored.

In severe advanced cases, you can help the brain restore binocular vision in specialized ophthalmology rooms for impaired binocular vision on a device called a synaptophore.

A little effort and care for your health will allow you to enjoy the world in volume.

Binocular vision is one of the main functions of the eyes, so the presence of this function is very important for a person’s adaptation to the outside world and for his safe life.

Corresponding points of the retina.

04/12/2021

author, ophthalmologist Yatsinova N.A.

Types and types of vision correction, the choice of a modern method of vision correction

Contents

1. Types and types of vision correction
2. Laser vision correction: pros and cons
3. Vision correction in adulthood
4. About the benefits of gymnastics for the eyes
5. Selecting the correction method
6. Where to make the correction?

Vision correction is a correction of optical imperfections of the eye (nearsightedness, farsightedness, astigmatism) in order to improve visual acuity. Today it is possible both by conservative methods (external optical correction) and by surgical methods (refractive surgery).

Normally, the optical system of the eye is designed so that the light rays are focused exactly on the retina, which gives a clear image of visible objects and ensures good vision. When, due to violations of the optics of the eye, focusing light on the retina is impossible, they speak of a certain refractive error. Among them are distinguished:

• Myopia. A similar condition occurs when the optics of the eye refract the light rays too much and focus them in front of the retina, which makes it difficult to see far away. Myopia is often complicated by astigmatism.

• Hyperopia. In this case, the refraction of light rays is not strong enough, so the focus occurs behind the retina, which adversely affects near vision. The combination of farsightedness and astigmatism worsens vision even more.

• Astigmatism. A visual disorder in which light rays are focused at several points. It can occur both in front of and behind the retina, which especially worsens the clarity of the image.

However, in modern ophthalmology there are enough funds to correct any kind of refractive error.

Types and types of vision correction

Ophthalmologists can offer the patient a choice of several methods for correcting eye disorders, both conservative and surgical. The main ones among them are:

• Points. This is the most ancient, time-tested method of vision correction. In addition to the return of the ability to see well, glasses today have become a fashion accessory that emphasizes individuality and style. With their help, you can correct almost any visual problem. The latest eyeglass lens materials and special coatings are able to provide proper high quality vision under any external conditions.

• Contact lenses. This method is very popular and quite convenient, provided that the eyes are accustomed to a foreign object inside. True, it is worth mentioning that eye tolerance of contact lenses rarely lasts more than 15 years of daily wear. For the correction of myopia in children, the use of night orthokeratological lenses gives very good results.

• Laser vision correction . The most painless and safest way to surgically correct refractive errors. It is popular all over the world and includes at least a dozen methods of performing the operation, from PRK and LASIK, which are losing their relevance, to the most modern ones with a minimum of complications and side effects, such as SMILE.
• Intraocular surgery. They are prescribed to correct vision in patients with very high degrees of visual impairment that cannot be corrected by laser (for example, with myopia of -18.0 D or hyperopia of more than +6 D). In this case, the natural lens of the eye is replaced with an artificial intraocular (intraocular) lens.
• Corneal surgery. They are needed to improve vision in complex eye pathologies. For example, with keratoconus, leukomas, scars and corneal opacities, when their treatment in other ways has no effect. The operation involves replacing the altered cornea with a donor graft.

Laser vision correction: pros and cons

The most popular and widely used method of refractive error correction worldwide is laser vision correction. At least 1 million people resort to it every year, and there is an explanation for this. Almost all laser correction techniques guarantee high results and fast postoperative recovery. In addition, they have the following advantages:

• The patient gets rid of dependence on external correction means – glasses and contact lenses.
• The results of the operation are completely predictable.
• Visual acuity after surgery is very high.
• The operation is completely painless and does not take much time (up to 20 minutes).
• Postoperative rehabilitation has a short period.
• The risk of complications is minimal (especially with SMILE correction).
• Opportunity to perform the operation on an outpatient basis.
• The cost of the operation is justified in a few years, compared with the cost of glasses or contact lenses over the same period.

The disadvantages of laser vision correction occur infrequently and only in a very small proportion of patients. Complications can be of varying severity (especially in correction methods with the formation of a LASIK corneal flap, etc.), but in most cases they are reversible and disappear over time. These include:

• Dry eye syndrome, keratoectasia, hayes may occur.
• In head and eye injuries, techniques associated with the formation of a corneal flap (LASIK) are complicated by its dislocation.
• Halo effects are noted – the appearance of halos and flashes around light sources, as a rule, in the dark.
• With the progression of myopia, the possibility of a second operation is not excluded.
• There is a possibility of undercorrection and overcorrection.
• There are contraindications for laser treatment.
• With high degrees of ametropia (refractive error), complete restoration of vision cannot be guaranteed.

At the same time, it is worth remembering that any vision correction does not cure the disease, but only eliminates its consequence – poor vision.

Vision correction in adulthood

When a person approaches the age of 40-45, he faces a natural age-related change – a deterioration in near vision. This condition is called age-related farsightedness or presbyopia. It is due to the gradual loss of the lens of its elasticity and age-related weakness of the ciliary muscle of the eye, which makes it difficult to see at close range. This problem awaits every person after reaching a certain age, regardless of the quality of his vision in his youth.

However, presbyopia is not a death sentence. Modern ophthalmology can offer a lot of options for correcting age-related farsightedness:

• Reading glasses . This is the simplest and most widely used vision correction method for presbyopic patients. With these glasses, you can not only read, but also perform any work at close range.
• Progressive glasses . These glasses are suitable for patients with refractive errors – myopia, hyperopia, astigmatism. Several optical zones in the lenses of these glasses provide good vision for distance, near and medium distances.
• Multifocal contact lenses . Just like progressive glasses, they have several correction zones that provide good vision at various distances.
• Laser vision correction. “Monovision” option, when one eye is corrected for near vision, the other for distance vision. The Presby LASIK variant, when during laser correction, the cornea of ​​the eye is made similar to a multifocal lens and the ability to see well at any distance returns.
• Multifocal artificial lenses . They are implanted in place of the natural lens of the human eye and vision at all distances remains good for life.

About the benefits of eye gymnastics

All refractive errors and associated visual impairments are due to an incorrectly formed optical system of the eye – changes in the length of the eye axis, as well as in the shape of the cornea, the strength or weakness of the lens.

Gymnastic exercises for the eyes, unfortunately, cannot correct the formed anatomy of the eye and restore the correct refraction of light rays for high visual acuity. Of course, exercise for the eyes plays a huge role, but only as a prevention of visual fatigue and myopia provoked by it.

Choosing a correction method

Age-related changes in the eyes often cause changes in indications for laser and other types of vision correction. Methods that are ideal for young patients are often contraindicated or inappropriate for people of mature and older age.

For example, patients under the age of 18 who are in the phase of constant body growth cannot be considered as candidates for laser vision restoration due to the growth of the eye. Although there are exceptions when the operation can be performed for medical reasons.

The choice of correction method very often depends on the lifestyle and occupation of the patient. So, people of intellectual labor often need good near vision, for computer users, comfort in working at an average distance is of great importance. In addition, there are many professions for which representatives (pilots, drivers) require excellent distance vision and depth perception.

To decide on the corrective method, it is better to visit an experienced ophthalmologist for an examination and consultation, as a result of which vision correction will be carried out effectively and safely.

Where to make a correction?

The solution to the issue of vision correction is possible only on the basis of the results of a comprehensive examination of the organ of vision by a professional ophthalmologist. In each case, the right choice depends on a well-conducted diagnosis and identification of indications and contraindications for conservative and surgical methods of correction.

Be sure to take into account that all surgical techniques, even the most modern and high-tech, are associated with some degree of risk.

To minimize the risk of negative consequences and complications of vision correction, it is worth finding a trustworthy eye clinic in advance, getting to a good surgeon and undergoing a thorough diagnosis.

The patient is free to choose between public health facilities and private clinics. Regardless of the form of ownership, certain medical centers have both advantages and disadvantages.

As a piece of advice, we can point out that the main selection criterion should not be the price of the service, but the equipment of the clinic with high-quality modern diagnostic and surgical equipment, as well as the possibility of choosing a correction option among several presented methods. In addition, the practical experience of the doctor performing the operation, confirmed by the reviews of the patients operated on by him, is of great importance.

Only under these conditions, laser vision correction will turn from a dubious lottery with unpredictable consequences into a safe procedure that, along with vision, will return a special feeling and joy of life.

Our clinic is equipped with the best equipment for the diagnosis and surgical treatment of refractive disorders from the leading manufacturer of medical equipment, Carl Zeiss (Germany), which eliminates medical errors and guarantees excellent results. The specialists of the clinic undergo the necessary training abroad and master all the methods of vision correction, including the most popular in the world, the safest and most effective ReLEx SMILE myopia correction technology. In our favor, the fact that patients have the opportunity to perform the operation by one of the best microsurgeons in Moscow, the reference surgeon of Carl Zeiss, Professor T.