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Colour blindness is not a type of blindness at all; it is an insufficiency in the way some people see colour. Once afflicted by this vision problem, people face difficulty in distinguishing specific colours like red, green, blue or yellow. So to call it colour vision deficiency would be much appropriate, and it hits men more often than women. In a report by Prevent Blindness America, it is revealed that about 8% of males and less than 1% of females are affected with colour vision problems. Generally, red and green colour deficiency is the most commonly found. In very rare instances, a person may carry a trait which lessens his ability to distinguish between blue and yellow colours. This blue-yellow hue insufficiency normally is found in men and women equally.
Understanding signs and symptoms: Do you have any difficulty in seeing yellow, green or red colours? Do people often tell you that you are seeing the wrong colour? If so, then these are key signs that you are affected with a colour perception deficiency. Quite opposite to popular belief, hardly a colour blind person is able to see only the shades of gray. Most people who are deemed as colour blind are able to see shades but cannot distinguish between one colour and another and get easily confused with other shades, depending on the kind of colour blindness they are affected with. If you have suddenly developed a colour vision deficiency when you were able to view and distinguish all the shades previously, then you should visit an ophthalmologist without further delay.
Causes behind colour blindness: Colour blindness takes place when the light-sensitive cells within the retina stop responding accurately to variations in wavelengths of light.
Photoreceptors present in the retina are termed as rods and cones. Rods are present abundantly, and about 100 million rod cells are present in human retina and these cells are very sensitive to light, but rods are impervious to sunlight and therefore, are incapable of perceiving colours. The cones, on the other hand, are responsible for our understanding of different colours. There are three types of cones, each of which is responsible for perceiving red, green and blue light. The three cones work together to help us see the whole range of colours. People who are colour blind usually have faults in a particular cone cell, which makes them unable to distinguish that particular shade.
Combatting colour blindness: Gene therapies are reported to cure colour blindness in monkeys, as per the reports of a study conducted by researchers of the University of Washington and Florida in September 2009. While early methods appear promising, gene therapy is not considered effective for human beings unless the treatments are verified to be safe.
Hence there is no effective means of curing colour blindness, but there are some strategies that may aid you to function better. However, if you are into graphic designing or anything that requires handling of different colours, then you will need professional help. The sooner you become aware of your insufficiency, the better you can compensate for it.
Some people also use contact lenses or eyeglasses that act as filters to enhance colour perception. If you are affected by this problem, make sure you visit an eye-care practitioner for detailed advice. In case you have a concern or query you can always consult an expert & get answers to your questions!
You know that diabetes is a chronic condition that renders difficulties to the patient in several aspects. A comprehensive care is essential to manage it effectively as the condition can lead to many other diseases including eye diseases.
If you have been diagnosed with diabetic or hypertensive eyes, then it means that your vision has started to deteriorate. But you need not lose hope as it is still possible to remedy the situation. Understanding the issue in detail will help you cope with the situation better.
What are diabetic and hypertensive eyes?
Diabetic eye refers to the complications in the eyes as a result of diabetes. It affects the blood vessels of the retina and hence develop impairment of vision and loss of vision in severe cases. Similarly, hypertensive eye as indicated by the name is the situation where in the eye is affected as a result of hypertension. This is because high blood pressure affects the blood vessels of the retina. It does not allow the retina to function properly and puts pressure on the optic nerve resulting is vision problems.
What are the symptoms of diabetic retinopathy?
Like many conditions of this nature, the early stages of diabetic retinopathy may occur without symptoms and without pain. An actual influence on the vision will not occur until the disease advances. Symptoms may only become noticeable once the disease advances, but the typical symptoms of retinopathy to look out for include:
How to take care of the conditions?
In the conditions of the diabetic eye and hypertensive eye that prime step to take care is to control diabetes and hypertension respectively. By following the prescribed medications for these conditions, the vision problem can be managed. At the same time, some adequate preventive measures are of utmost importance to efficiently and effectively take care of both diabetic eye and hypertensive eye.
Taking care of diabetic eye
First and foremost, you need to keep your diabetes under control and prevent it from being getting into the advanced stage. You should take utmost care to maintain the blood sugar level under control. After that, it is also necessary to keep the blood pressure in the correct range. Also, the cholesterol level in the blood needs to be under control. A proper and balanced diet is essential in this case. Whole grains, green leafy vegetables, fruits and lean protein should be included in the diet. Exercising is also very important to deal with diabetic, and if you are a smoker, you should quit it immediately since it causes problems with the blood vessels.
Taking care of hypertensive eye
You should bring down your blood pressure to the correct level and maintain it. You should consume a diet which contains all the essential nutrients, vitamins, and minerals. You should make sure not to do or involve in anything activity that can increase your tension or excite you. Smoking and drinking should be avoided to deal with the hypertensive eyes effectively. You should get yourself adequate and peaceful sleep which will help you to ease out of tension.
It is imperative to consult an ophthalmologist if you notice the classic symptoms of vision problems such as blurry vision, seeing floaters or flashes. If the condition progresses, treatment will involve medications or surgery depending on the severity of the condition. Hence, the best way to avoid such complications is to maintain a healthy lifestyle to take due care of your eyes.
In case you have a concern or query you can always consult an expert & get answers to your questions!
Do you wake up to see red shot eyes every morning? Along with this, if you are experiencing trouble, you might want to know if it is necessary to visit an ophthalmologist. Known as blurred vision and bloodshot eyes, these are two of the most common symptoms of many health conditions. From eye infection to eye injury, allergies, or any other physical condition can be the root cause behind them.
Read on further to understand how to proceed in such case:
What is redness of eyes?
The redness of eyes refers to a condition where the blood vessels, which are there right at the surface of the eyes, expand excessively and becomes congested with blood, turning the white areas of the eyes look reddish. It can be a physical condition or the presence of some irritants or infection causing the outer membrane of the eyeball to swell. Usually painless, in the majority of the cases it doesn't require medical attention.
What is blurry vision?
The term blurry vision usually refers to the loss of clarity in one’s eyesight. When someone's vision gets blurry, he or she fails to see the objects clearly, as they appear hazy and out of focus. One can have a dim or clouded vision in either any one of his eyes or in both of them. When left untreated for long, blurry vision can affect part or whole of vision.
What are the causes?
There are a number of factors that can cause redness of eyes that include allergies, inflammation affecting the eyelids, use of certain eye drops, foreign objects getting in the eye, decreased tear production or dry eyes, various corneal condition, any kind of injury to the eyes, conjunctivitis, inflammation of the eye’s middle layer, any condition damaging the optic nerve and others.
Just like the bloodshot eyes, there can be various reasons behind blurred vision as well. Some of the most common causes are cataracts, injury or trauma to the eyes, optic neuritis, corneal scarring, corneal abrasions, retinopathy, migraine headaches, significantly fluctuating blood sugar levels and more.
What are the complications of eye redness?
Most causes of eye redness will not result in serious complications. If you have an infection that causes vision changes, this may affect your ability to perform basic tasks such as cooking or driving. Vision impairments in these areas can result in accidental injury. Infections that are not treated may also result in permanent damage to the eye. For example:
- Infection could spread to other parts of eye and body
- Loss of vision may occur, possibly leading to blindness
- Scarring of the eye
- Loss of the eye
- Passing the condition on to others (such as in cases of conjunctivitis)
If eye redness does not resolve in two days, you should call your doctor.
What is the treatment?
While it might be just the rough handling of eyes that cause these symptoms, they may also be due to a condition that needs medical attention. When the blurred vision and the redness of the eyes are indeed due to some underlying medical condition, such as a migraine, or stroke, or blood sugar, etc., first treating those conditions is important.
Apart from the medical treatment, incorporating few practices such as avoiding rubbing the eyes, ensure the environment is allergen-free, or rinsing the eyes with cool water can help in preventing the condition from deteriorating further.
Remember, while some of the health conditions causing bloodshot eyes and blurry vision can be benign, others can be severe and may need immediate medical attention. Therefore, whenever experiencing any of these two conditions, don’t hesitate in consulting with an ophthalmologist right away. In case you have a concern or query you can always consult an expert & get answers to your questions!
When was the last time you visited an ophthalmologist? Chances are that unless you faced a problem in your eyes recently, it must have been months or even years. Most people only visit an eye specialist’s clinic when they experience some eye problem. This is not a good practice since the best way to avoid severe eye complications is to detect them in their early stages. Since some eye conditions are asymptomatic in their early stages, these conditions cannot be detected without a comprehensive eye exam. Either you must be aware of warning signs or visit an ophthalmologist once a year to avoid eye problems getting severe.
Warning signs that need immediate attention
- Blurry Vision: If your vision has suddenly got blurry or you are not able to focus clearly on objects, then this can be due to an underlying health issue. In case the blurry vision is in any one eye, and it comes and goes, an eye examination must be scheduled as soon as possible.
- Obstructed Vision: If you are experiencing any visual disturbances in the form of flashes of light, floaters or obstruction of vision, then you need to visit an eye specialist within 24 hours. Such symptoms may be the result of some underlying retinal pathology or may lead to retinal detachment, retinal tear or retinal hole.
- Far or near sight: Over time, some people tend to shift their books or computer screens a little further away from their usual reading distance to improve clarity. This can be a sign of gradual blurring of vision, and it indicates that it’s time to have your eyes examined. The reverse also calls for the same. If you are reading a book or viewing the TV or computer screen closer than usual, then you need to visit an eye specialist.
- Headaches: Another sign that indicates vision problems is headaches. If you are experiencing frequent headaches, then this is a sign of vision problem. Since vision change is usually slow and imperceptible in its initial stage, a frequent headache serves as a warning sign.
- Ear pain: Temporary eye pain or strain is normal and is not a cause of worry since it usually occurs during seasonal changes or cold and flu. However, persisting eye pain or fatigue that last for over a few days is an indicator of some eye infection or serious health condition.
- Squinting: Other than that, squinting is one of the most common warning signs of future eye problems. Squinting reduces extraneous light from entering the eye and reduces light scattering. This act helps improve vision but is an unnatural reaction and is one of the first signs for children who need prescription glasses. If you squint more than normal, then it is time for you to have your eyes checked.
- Irritation and redness: If you are experiencing itchiness, redness, and discharge from your eyes, then you may have an eye infection. Consult your eye specialist and have the infection treated as soon as possible to avoid further complications.
Prevention is always better than cure and eyes are one part of your body that you most likely ignore unless the problems start looming large. When the warning signs are felt, it is better to seek medical attention to rule out any sort of complication.
Technology is both boon and bane. Most jobs nowadays are partially automated, and it has become necessary for many to work long hours on the computer. If you are one such person, then you might be experiencing one or many symptoms related to eyes. The eye muscles get fatigued when eyes stare on the computer screen for a long time, and this can cause a host of eye problems. Referred to as Computer Vision Syndrome (CVS), the condition can range from eye pain to problems with eye sight.
The following is a short account of a few simple but effective measures that you can follow to avoid eye problems caused by extensive use of computers.
- Simple Tips to Follow: Eye care regimen should be followed by everyone, but special care needs to be taken by the individuals who always works on the computers and has to look on the screen at all the times. The current digital age has greatly altered the way we use our eyes. Here are few simple tips you can follow in this regard.
- Take Eye Breaks: You should make it a point to turn your eyes away from the screen of the computer for giving a break to the eyes. While working at the computer, it is to be made sure to take a break every 20 minutes and look away at least 20 feet for a duration of about 20 seconds. This is more popularly known as the 20 – 20 Rule and very helpful for the eyes.
- Frequent Blinking: Frequent blinking leads to spread of tear film. It might happen that you need to stare at the screen of the computer for a long period of time which denies you of taking any kind of breaks. In this situation, it is recommended that you should blink more frequently which is beneficial for the health of the eyes.
- Use Eye Drops: This can be another healthy tip for the maintaining good and healthy eyes. Using the eye drops for the eyes which are actually artificial tears or eye lubricants which play a crucial role in reducing the strain in the eyes always keeping the eyes hydrated. One point is to be remembered here is that the eye drops should be used after consultation with an ophthalmologist so that no side effects arise later on.
- Using Computer Glasses: The individuals who heavily use computers can use single vision glasses for creating a gap between the eyes and the screen of the computer. A mininmum of 30 inches from eye is required. This can have a significant impact on the health of the eyes.
- Orthoptic Exercises: Certain types of muscle imbalances (forms of strabismus) can be improved with eye exercises. This form of therapy is called orthoptic therapy. The most common disorders that respond to orthoptic therapy are convergence insufficiency and intermittent exotropia.
- Anti-glare Screens: Anti-glare glasses can certainly help you work from your laptop screen more comfortably, but you can also protect your eyes by adjusting the screen so it's in a good position for your eye line. Remember to give your eyes a break every now and then by focusing on something in the distance.
Apart from these practices, adopting healthy lifestyle habits such as eating a balanced diet, exercising, quitting smoking and wearing sunglasses while out can help preserve eye health in general. Also, it is essential to undergo regular eye check up to catch any eye problems at its early stages.
In case you have a concern or query you can always consult an expert & get answers to your questions!
Your eyes are one of the most significant of all the sense organs since it allows you to see things around you. It is essential to take good care of your eyes. But, many lack an awareness on ocular care. Read on to know a few lifestyle habits that will help in maintaining a good ocular hygiene thus ensuring normal vision.
Ensure your ocular hygiene with these healthy lifestyle habits
- Balanced diet: Eating right and maintaining a healthy diet does not just go for your overall health but your eye health as well. While carrots are good for your health, eating fresh fruits and green leafy vegetables offer the minerals and nutrients necessary for maintaining healthy eyesight. Dark leafy vegetables such as spinach or kale are especially good for eye health. Moreover, eating fish rich in omega-3 fatty acids such as tuna or salmon is very beneficial for maintaining proper eyesight.
- Right body weight: Body weight is indirectly related to eye health. An individual must maintain proper body weight since being overweight leads to health problems like diabetes and blood pressure. A person with diabetes is at risk of deteriorating eye sight caused by diabetic eye disease or glaucoma. If you have problems with weight maintenance, consult a health expert and seek professional guidance.
- Ocular hygiene: Maintaining ocular hygiene has become very important these days. Due to the level of pollution and germs around us, certain preventive measures need to be taken to prevent eye infections. People who play sports or perform other physical activities should wear protective eyewear. Wear safety goggles while swimming and make sure you wear polycarbonate eye gear if you play sports such as squash. These lenses are 10 times stronger than usual plastic and are available in protective eyewear stores as well as sporting goods stores.
- Quit smoking: Never take up smoking and if you already have then you better quit it as soon as possible. Just like for the rest of your body, smoking is very harmful to your eyesight as well. Research has proven that smoking causes severe macular degeneration, cataract and optic nerve damage in aging people. Over time, this can lead to permanent blindness.
- Protect your eyes: Sunglasses are not just meant for style, they also protect your eyes from harmful UV rays. While purchasing sunglasses, make sure the ones you purchase block out 99-100% UV-A and UV-B rays. Moreover, it is vital to give your eyes rest. If you work on the computer or watch TV, it is advised to look away from the screen for around 20 seconds in every 20 minute time interval. It is vital to get sufficient sleep as well.
Most of these tips may sound simple, but they are highly effective and can help avoid eye problems completely. And don’t forget to get your routine eye check-up done as well. All that is required is to incorporate these basic lifestyle changes to protect the amazing part of your body, your eyes. If you wish to discuss about any specific problem, you can consult an Ophthalmologist.