Wednesday, October 23, 2019

Theboegis : Various Unique Facts About Color Blindness

Theboegis : Various Unique Facts About Color Blindness

Color blindness or more precisely Color Vision Deficiency (CVD) is a term to describe the lack of perception sensitivity to certain colors. Color blindness is a commonly used term, although it is misleading if interpreted literally because people who have this condition can still see colors, even though they cannot see the difference between several complementary (contrasting) color pairs.

Color vision deficiency has nothing to do with visual acuity, and this condition is most often caused by hereditary conditions. The weakness of distinguishing red and green is the most common form of color blindness, which is around 99%. Blue and yellow vision deficiencies also exist, but that is rare and no general test is available for it.

What is the most disturbing thing for people who are color blind?
The following are some of the unique things that can upset a person who is color blind:

  • When grilling a piece of meat, people with red color deficiency cannot tell whether the meat is raw or cooked. In addition, many also can not distinguish between green tomatoes and red tomatoes or between soy sauce and chocolate syrup. There are also people who buy and bite raw bananas, because they cannot tell if they are yellow or green, and even natural ingredients make it more difficult to distinguish colors.
  • Some foods may look disgusting for individuals who are color blind. For example, a plate full of spinach will be seen as cow dung.
  • However, they can distinguish oranges and lemons, because oranges appear to have a lighter yellow color compared to lemons.
  • A person who is color blind generally cannot interpret chemical testing equipment for pool water, test strips for hard water, soil, or water pH, because they depend on subtle color differences.
  • Many people who are color blind cannot guess whether a woman is wearing lipstick or not. Even more difficult, if they have to distinguish between those with blonde hair with blue eyes and those with red hair and with green eyes.
  • Lack of vision in color can also interfere with children who are affected at a young time. At school, he would have trouble picking up blue crayons to color the sea.
  • They will also be confused to see bi-color and tri-color on the LED (Light Emitting Diodes), are the lights flashing red, yellow, or green? The same problem also occurs with traffic lights.

Various types of color blindness

1. Red-green color blindness
The most common type of this condition is caused by the loss of photopigments cone red (Protan) or green cone (deutran).
Types of red-green color blindness:

  • Protanomaly : The colors red, orange, and yellow turn greenish and the colors are not too bright.
  • Protanopia : The red color will be black. While the colors orange, yellow, and green, all will appear to be yellow.
  • Deuteranomaly : Yellow and green will look more reddish, and it is difficult to distinguish violet and blue.
  • Deuteranopia : The red color will be brownish yellow and green to beige.

2. Blue-yellow color blindness
This condition is less common than red-green. This is usually caused by a loss photopigments cone blue (Tritan). 
Types of blue-yellow color blindness:

  • Tritanomaly : The color blue will become green and it is difficult to distinguish yellow and red from pink.
  • Tritanopia : The blue color will appear green, while the yellow color will appear to be violet or light gray.

3. Total color blindness
People with total color blindness (monochromacy) cannot see colors at all and their visual acuity may have an effect.
Types of Monochromacy:

  • Cone monochromacy : People with monochromacy will have difficulty distinguishing colors, because the brain needs to compare signals from different types of cones  (red, green, and blue) to see colors. When there is only one cone that works, this comparison is not possible. People with blue cone monochromacy may also have poor visual acuity, nearsightedness, and uncontrolled eye movements (nystagmus). Cone monochromacy is an autosomal recessive disorder.
  • Rod monochromacy or achromatopsia : This is a rare type of monochromacy and is the most severe form of color blindness. This is usually present from birth. None of the cone cells have functional photopigments . People with this level of monochromacy see the world in black, white, and gray. People with rod monochromacy tend to be photophobic, very uncomfortable in bright environments. Rod monochromacy is an autosomal recessive disorder.

Other facts
Another rare form of CVD is unilateral dichromacy which affects people by having one normal eye and one color blind eye. For every color blind disease, there is no treatment to treat this condition, but that does not mean people who have color blindness have a significant disability. At one time, the US army found that people with color blindness could see color camouflage where people with normal color vision could be fooled by it. In fact, a decrease in color signal can make textural and brightness differences clearer.
Theboegis : This is the cause of infants suffering from cataracts from birth

Theboegis : This is the cause of infants suffering from cataracts from birth

During this time you might think that cataracts only occur in people who are old. However, it turns out that newborns can also suffer from cataracts. A baby's black eye lens is covered with grayish stains and this is called a congenital cataract. In some cases it may not have much impact on the baby's vision, but in severe cases it can cause blindness in the baby.

What is congenital cataract?
Congenital cataract is the opacification of the lens of the eye that occurs from birth. These eye lenses function to focus the light entering the eye toward the retina, so that the eye can capture images clearly. However, if a cataract occurs, the light rays that enter the eye become scattered when passing through a cloudy lens, so the images received by the eye become blurred and distorted.
Theboegis : Watching TV Too Much Turns Out Not to Damage Children's Eyes

Theboegis : Watching TV Too Much Turns Out Not to Damage Children's Eyes

When you were a child, your parents might be busy advising you - or staring, if you're still stubborn - not to watch TV too closely, because otherwise your eyes will be damaged. This advice sticks tightly in your mind to adulthood and now, as a parent, you are the 'on duty' to warn your children not to sit too close to the television screen.

Sunday, October 13, 2019

 Theboegis : Here's How To Wear and Take Care of Contact Lenses So That The Eyes Are Not Irritated

Theboegis : Here's How To Wear and Take Care of Contact Lenses So That The Eyes Are Not Irritated

Contact lenses are a popular choice to help your vision problems. Or sometimes, contact lenses can also be used only for fashion. However, be careful, if you do not treat your contact lenses properly, then your eyes will be the victims too. Here are tips so that you avoid infection due to contact lens wear

The type of contact lens you use determines how you treat the contact lens. For example, disposable contact lenses require easier maintenance than conventional contact lenses. To avoid complications in your eyes, you must strictly follow the guidelines given by eye experts. If you have difficulty cleaning your contact lenses, tell your eye specialist. Maybe they will help you ease the steps needed, or you might even be advised to change the type of contact lens you wear.
Theboegis : There are 12 Eye Conditions that Overcome Eye Drops

Theboegis : There are 12 Eye Conditions that Overcome Eye Drops

There are 12 Eye Conditions that Overcome Eye Drops
Eye drops are a liquid that is used for various eye conditions, such as red eye and after eye surgery. Eye drops usually contain saline as a basic ingredient. Depending on the intended use, eye drops can also contain artificial tear lubricants, or anti-redness substances, as well as medications. There are eye drops that can be purchased at stalls, there are some that are prescribed by doctors, and there are some that are only used by eye specialists.

When do eye drops be needed?
Eye drops are usually used for the following conditions:

1. Cataract surgery
Lens removal surgery and replacement with artificial lenses require eye drops. Before surgery, eye drops are used to prevent infection, make pupils bigger, and numb in the eye area. After surgery, eye drops can reduce the risk of infection and help cure.

2. Conjunctivitis (infectious eye disease)
Conjunctivitis is an infection or irritation of the conjunctiva (a thin and clear membrane on the inside of the eyelid that covers the whites of the eye). The cause is a bacterial or viral infection, environmental irritation, and allergies. In addition, conjunctivitis can also be caused by toxicity or allergic eye drops, or by eye drops that have been contaminated.

The symptoms that arise are itching, heat, redness, and swelling. Treatment of these conditions can be done by using antibiotic or anti-inflammatory eye drops, or by removing eye irritation.
 Theboegis : There Are 3 Things Around Squints You Should Know

Theboegis : There Are 3 Things Around Squints You Should Know

Cross strabismus is a condition where the position of the two eyes is not aligned, which causes the person's gaze to not be fixed on one object at the same time. One side of the eye can be upside down, inside, up, or down like it is distracted to look the other way. In many cases, the eyes will be turned in turn. Familiar with this condition?

Crossed eyes are caused by genetic factors
Squinting usually occurs in people who have weak eye muscle control or who have nearsightedness. In many cases, there is no exact cause for this eye condition. Crossed eyes can occur all the time or only at certain times, such as when under stress, after a lot of reading , or due to an underlying disease. Apart from daily activities, a squint of eyes that just arises in adulthood can be a sign of the beginning of a stroke .
Parai Tenggiri Beach, Bangka Belitung

Parai Tenggiri Beach, Bangka Belitung - Parai Tenggiri Beach is located in Sinar Baru Village, Sungai Liat District, Bangka Regency, Bangka Belitung Province. Parai Tenggiri Beach is the same as most beaches which have white sand. however, what is unique from this beach is its green beaches, Tosca green which adds to the Tenggiri beach ecosystem. initially this beach is managed by the local government but, now this beach has been managed by the private sector. This beach is a green tourism that is also called Parai Green Resort as a form of saving the environment. not only the unique waters, but on this beach there are rocks scattered along the beach in various shapes and sizes. these rocks add to the beauty of this Parai Tenggiri Beach. You can do various activities on this beach such as relaxing , seeing the rocks which are sitting still in the middle of the water, swimming , sunbathing , riding a banana boat , diving and various other water activities. for those of you who like fishing, in this place there are fishing boat rentals with various fishing equipment. This beach is very clean from air pollution and very comfortable.
Way Kambas National Park, Lampung

Way Kambas National Park, Lampung

Way Kambas National Park, Lampung, a place for exotic wildlife conservation.

Lampung is not only known for its beautiful beaches, but the area also has a facility for breeding and training for elephants in Way Kambas National Park.

Way Kambas National Park in Lampung has been established since 1985 and is the first elephant school in Indonesia. According to information, this location was originally called the Elephant Training Center (PLG), and over the last few years the name has changed to the Elephant Conservation Center (PKG).

The Elephant Conservation Center in Lampung is expected to be able to become an elephant conservation center in domestication, training, breeding and conservation. Until now this PKG has trained more than about 300 elephants that have been distributed to all corners of the country of Indonesia.