Your common eyesight is one of the most valuable assets as 80% of what we perceive come through our sense of sight. In fact, a greater part of the brain is dedicated to vision than to all the other four senses combined. Most of us tend to take good eye health for granted, until the time we face a serious eye problem. Many eye problems have no early symptoms; you may not feel any pain or notice loss of vision until the issue has become quite advanced. The best way to avoid all such eye complications is through regular professional eye examinations. So what are some common issues affecting the eyes
Eye twitching medically referred to as Blepharospasm is an involuntary, abnormal blinking of the eyelid. This involuntary spasm of the eyelid muscles may happen in one or both eyelids and is rarely uncomfortable, but it can be irritating. They are very common and often last for a few seconds and often go away on their own, but if they last for more than 2 weeks, it is best to consult an ophthalmologist. Although anyone can experience eye-twitching at any time, it is fairly common in middle-aged people and elderly women.
Eye twitching or spasm of eyelid muscles can be attributed to the electrical activity in the brain that causes the nerve cells to flash signals to the eyelid muscles. There are no visible external or internal stimuli that cause eye twitching. Other conditions which may increase the likelihood of eye twitching include:
Mild cases of eye twitching do not require any medical treatment, getting some rest, minimizing caffeine and alcohol intake, and reducing stress can help relieve symptoms. However, more chronic forms of this condition may require any of the following medical treatments:
As the name suggests, the eye “floaters” are small spots, specks, strands, cobwebs, or lines that aimlessly drift through your field of vision. They are more prominent when you look at light-colored backgrounds such as a white wall or blue sky. They move as you move your eyes and usually disappear when you try to look at them directly. They may appear in different shapes and sizes and in most cases they are normal and harmless. Although anyone can experience eye floaters at any time, they are usually experienced by middle-aged people.
It is generally agreed that eye floaters are caused by an irregularity in the jelly-like fluid “vitreous humour” that makes the bulk of the eye. As we grow older, this jelly-like fluid becomes more watery with tiny clumps of protein floating through it. These tiny clumps of protein cast a shadow onto the retina as soon as bright light enters the eye; this is what we see as small spots, specks, strands, cobwebs, or lines floating through our field of vision.
Besides abnormalities in the vitreous humour, eye floaters can be caused as a result from other diseases and conditions, such as:
Witnessing something floating around your field of vision may at first seem like a matter of concern, but floaters are very common and usually harmless. Under very rare cases they require any medical treatment as they usually go away on their own with the passage of time. The best way to deal with floaters is to ignore them, however, if they start to interfere with your vision or create other complications, you should seek medical advice. Your doctor, after carrying out a detailed examination of your eyes, may consider any of the following treatment options:
Myopia, commonly known as “shortsightedness” or “nearsightedness” is a refractive error of the eye in which the eye fails to focus clearly on distant objects. People who suffer from this eye focusing disorder are unable to see distant objects clearly but often can see reasonably clear at short distances. It is generally categorized as an eye-focusing disorder, rather than a disease.
Myopia is a fairly common eye-focusing disorder and usually begins in childhood. It is estimated that by 2050, almost half of the global population will be affected by this disorder.
Myopia usually occurs when the eyes grow slightly too long from front to back. As a result of this deformity, the light does not focus on the retina (the light-sensitive tissue), instead, an image is created in front of the retina, resulting in blurred vision. Scientists are still unclear as to why this deformity of the eye happens, they often link it to heredity or environmental factors such as poor diet, poor posture, poor light, excessive reading, and lack of exposure to natural sunlight.
Despite so many advances in the field of medicine, no drug or treatment for myopia has been discovered. Recent research suggests that some drugs might slow the progression of myopia. A number of treatments, however, are available to correct myopia symptoms all of which focus on making the light rays fall on the retina to make a clearer image of the distant object.
Like myopia (nearsightedness/shortsightedness) and hyperopia (farsightedness), astigmatism is a refractive error/disorder of the eyes and not a disease. In astigmatism, the light entering the eye fails to focus on the retina, resulting in distorted or blurred vision. This refractive error occurs because of an irregularly shaped lens (lenticular astigmatism) inside the eye or irregularly shaped cornea (corneal astigmatism). In a normal eye, the cornea and the lens are curved like a basketball with an equal degree of roundness in all areas; this makes the light bend evenly to give a clear view. An eye with astigmatism, however, has a lens and cornea that is curved more like a football (egg-shaped), with one meridian being slightly more curved than the other, this makes the light bend more in one direction than the other resulting in blurred or distorted vision.
The exact cause of astigmatism (deformity) of the cornea or lens of the eyes is still not known, but scientists consider genetics to be a big factor. Astigmatism is often present at birth; however, there have also been instances of astigmatism developing in later part of life.
Like myopia and hyperopia, most cases of astigmatism can be effectively corrected with eyeglasses, contact lenses, or refractive surgery. If astigmatism is mild, your doctor may not suggest any treatment. The two most common treatment options for normal astigmatism are:
Tears are very important for the health and wellbeing of your eyes. We generally associate tears with emotions or onions. However, if you have tears in your eyes for no reason, an eye condition may be the reason. The good news is that most of these eye conditions can be effectively treated with over-the-counter medicines.
Epiphora or excessive abnormal tearing is a condition in which the eye/s make more tears than they can effectively drain making the eye/s wet for a prolonged period of time. While not necessarily harmful, watery eyes can be very frustrating and embarrassing at the time and can even cause vision problems.
Most cases of watery eyes are not serious and will resolve on their own with the passage of time or by using certain OTC medications. However, in case of tear drainage problems, minor surgery is performed to create a new channel of drainage from the tear sac to the inside of the nose. In case, the drainage channels are narrowed and not entirely blocked, the surgeon may use a probe to make them wider.
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Common Eye Problems
So what is hypertension? Our body requires a constant supply of fresh oxygenated blood to perform daily activities. The heart is in charge of supplying essential nutrients and oxygenated blood to different parts of the body through a complex network of blood vessels. As the blood passes through these blood vessels, it applies pressure to the walls of the vessels; this pressure is referred to as “blood pressure”. The size and flexibility of the arteries and the volume and force of the blood are the two major factors that determine our blood pressure at any given time.
Hypertension, more commonly known as “high blood pressure” is a condition in which the pressure inside the arteries increases to unhealthy levels, this can happen as a result of various factors such as:
The most common way of diagnosing hypertension (high blood pressure) is by using a device called a sphygmomanometer. The sphygmomanometer measures the blood pressure in units called millimeters of mercury (mmHg). The blood pressure is expressed by two numbers; the first number indicates the systolic pressure (the pressure in the arteries when the heart is pumping the blood), whereas the second number indicates the diastolic pressure (the pressure in the arteries while the heart is resting between beats).
The general classification of blood pressure reading is:
If your doctor has diagnosed you with high blood pressure, he/she may recommend you to regularly monitor your blood pressure at home in addition to regular healthcare visits. Since there is no permanent cure for hypertension, treatment for high blood pressure typically involves lifestyle changes accompanied by medications. Here is a list of some healthy lifestyle changes that can help you keep your blood pressure in the normal range and avoid health complications in the future:
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What is Hypertension
Despite significant advancements in the medicine for Australians in recent decades, heart diseases and diseases of the arteries, arterioles, and capillaries remain one of the leading causes of illness, disability, and premature death. Cardiovascular diseases such as coronary heart disease (CHD) or coronary artery disease (CAD) in particular affects one in six Australians and accounts for a larger portion of deaths (almost 35%) than any other disease group.
Coronary heart disease (CHD) also referred to as coronary artery disease (CAD) or ischaemic heart disease develops when the coronary arteries which carry blood, oxygen, and nutrients to the heart become damaged, narrowed, diseased, or blocked.
A healthy heart pumps approximately 3000 gallons of nutrient-rich blood through these arteries to different parts of the body every day. In order to carry out its work, the heart needs an adequate and dependable supply of fresh nutrient-rich blood. Reduced blood flow to the heart will not only make it weak; it will also greatly compromise its ability to pump enough blood to other parts of the body. This can create all sorts of health problems which can be detrimental at times.
A thorough understanding of the risk factors is essential to help prevent or decrease the likelihood of developing CHD. Here are some common risk factors that contribute to the development of coronary heart disease:
The best way to keep your heart healthy and minimise the chances of developing coronary heart disease is to control or reduce the risk factors. Some ways to keep your heart healthy and reduce your CHD risk are:
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What is Coronary Heart Disease