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Conjunctivitis, which is also known as ‘Pinkeye’, is an irritation on the outmost layer of the white portion of the eye and the inner layer of the eyelid. This makes the eye appear reddish or pink. There might be scratchiness, itchiness, or pain. The eye, which is affected, may be ‘stuck shut’ or have tears in the morning. Also, white portion of the eye can have swelling. Itching is very common in such cases because of allergies. Conjunctivitis can affect either both the eyes, or even one eye.
Anyone can get a pink eye, but schoolchildren, pre-schoolers, college student, day-care workers, and teachers are particularly at risk for the transmissible types of pinkeye because they closely work closely with others.
The very common contagious causes are viral followed by a bacterial infection. The viral infection might occur with other symptoms of common cold. Both the bacterial and viral cases are simply spread between the people. Allergies to animal hair or pollen are amongst the common causes. Diagnosis often depends on its signs and symptoms.
Conjunctivitis is also called neonatal conjunctivitis.
Few Facts on Conjunctivitis:
Here are a few facts about conjunctivitis. They are as follows:
- Pinkeye can result from an infection, an irritation, or an allergy.
- Bacteria or a virus can cause infection. Sometimes it is associated to a Sexually Transmitted Infection (STI).
- Antibiotics are used often, but these does not work if the cause if virus.
- The symptoms usually last up to two or three weeks, but they can continue for longer.
- It is vital to wash hands with care and not to share personal belongings, like towels, as this can spread the disease.
Types of Conjunctivitis:
There can be different types of Pinkeye. They are as follows:
Bacterial conjunctivitis is the most common type of pinkeye. It is caused by bacteria, which infects the eye via several sources of contamination. The bacteria can spread contact with exposure to contaminated surface, an infected person, or via other means like ear infection or sinus.
The common kinds of bacteria, which case bacterial conjunctivitis, are Streptococcus pneumonia, Pseudomonas aeruginosa, Haemophilus influenza and Staphylococcus aureus. A thick eye pus or discharge is usually produced in Bacterial conjunctivitis and one or both the eyes can get affected.
This type of conjunctivitis is another common form of pinkeye, which is highly infectious, as coughing and sneezing can spread airborne viruses. This form of pinkeye can also accompany common viral respiratory infections like the flu, the common cold, or measles.
Usually, a watery discharge is produced during viral conjunctivitis. Normally, the infection begins in one eye and rapidly spreads to the other eye.
Unlike with the bacterial infections, antibiotics do not work against virus. No ointments or eye drops affect against the common virus, which cause viral conjunctivitis. However, it is self-limited that means it will cure by itself after a short span of time.
Chlamydial and Gonococcal Conjunctivitis:
These bacterial forms are related to contamination from Sexually Transmitted Diseases (STDs) including Chlamydia and gonorrhoea. Newborn babies might be infected while passing through the birth canal of the infected mother. A form of Chlamydia infection called Trachoma causes scarring on the surface of the eye. Trachoma is the leading cause of avertable blindness of the world.
Neonatal Conjunctivitis, also called Ophthalmia neonatorum, is a type of pinkeye contracted by newborn babies during delivery. The eyes of the baby are infected during the passage via birth canal from an infected mother with either Chlamydia Trachomatis or Neisseria Gonorrhoeae. If left untreated, it can lead to blindness. It may be contagious or non-contagious.
Eye allergies cause this form of conjunctivitis. Allergens including dust mites, animal dander, and pollen trigger eye allergies.
The most common indicator of allergic pinkeye is itchy eyes that can be relieved with a special type of eye drop consisting of antihistamines to monitor allergic reactions. These drops are available over both at medical counters and by prescription.
It is also imperative to avoid the allergen in treatment of this type of pinkeye. Allergic pinkeye can be perennial (year-round) or seasonal, based on the allergen that causes the reaction.
Giant papillary conjunctivitis (GPC):
Giant papillary conjunctivitis, generally involves both the eye. Also, contact lens wearers, often, are affected by GPC. This state can cause itching, contact lens intolerance, red bumps inside the eyelids, tearing and a heavy discharge. The person who suffers from this type of pinkeye needs to stop wearing contact lenses. The doctor may recommend to switch different type of contact lends, to trim down the chances of pinkeye coming back.
Non-infectious conjunctivitis: Diesel exhaust, certain chemicals, smoke and perfumes cause non-infectious conjunctivitis. Some types of conjunctivitis are resultant of sensitivity to certain consumed substances including herbs like turmeric and eyebright.
The immune responses of eye like a reaction to wearing ocular prosthetics (artificial eye) or contact lenses can cause certain types of conjunctivitis including the Giant Papillary Conjunctivitis. Toxic conjunctivitis can be caused by a reaction to preservatives in ointments or eye drops.
The most prevalent conjunctivitis symptoms include the following:
- Itchiness in one or both the eyes
- Redness in one or both the eyes
- A pus or discharge in one or both the eyes forming a crust during night that may not allow one to open eye in the morning.
- Gritty feeling in one or both the eyes
Viral Conjunctivitis: Sensitivity to light, itchy and watery eyes, are the common symptoms of viral conjunctivitis. This type of pinkeye can affect one or both the eyes.
Bacterial Conjunctivitis: The eye discharges a sticky, greenish-yellow or yellow discharge or pus in the eye’s corner. In a few cases, this pus can be stern enough to cause one’s eyelids to be stuck when s/he wakes up. It can affect one or both the eyes. Bacterial pinkeye is contagious, usually by a direct contact with contaminated items or hands that have been in contact with eyes.
Allergic Conjunctivitis: Itchy, burning, watery eyes; often accompanied by a runny nose, light sensitivity, and stuffiness. Both the eyes are affected by allergic conjunctivitis. This type is not contagious.
Causes of Conjunctivitis:
A virus, most commonly, causes contagious conjunctivitis. Allergies, bacterial infections, dryness and other irritants are also the common causes. Both the viral infections and bacterial infections are infectious, passing from one to another through contaminated water or objects.
Viral: The most common cause of the viral conjunctivitis (adenoviral keratoconjunctivitis) is adenoviruses. Herpes simplex viruses can cause herpetic keratoconjunctivitis. This can be a serious problem and require treatment with acyclovir. Coxsackievirus A24 and Enterovirus 70, two types of enteroviruses can cause a highly contagious ailment called acute hemorrhagic conjunctivitis. These two enteroviruses were first identified in an outburst in Ghana in 1969. Since then, the viruses have spread across the world causing various epidemics.
Bacterial: Haemophilus influenza, streptococcus pneumonia, and staphylococcus are the most causes of acute bacteria conjunctivitis. Neisseria meningitides or Neisseria gonorrhoea usually cause hypercute cases (through very rare). Staphylococcus aureus, gram-negative enteric flora, or moraxella lacunata are the typical causes of chronic cases of the bacterial conjunctivitis, which lasts longer than 3 weeks.
Allergic: Allergens like perfumes, dust mites, pollens, cosmetics can cause allergic conjunctivitis.
Causes of Conjunctivitis in newborns:
Blocked tear duct, irritation, or infection can cause conjunctivitis in newborn babies. One cannot find it difficult to determine the cause as each form of pinkeye produces similar symptoms.
Sometimes, virus or bacteria are passed on from mother during her delivery, even though she has no symptoms of conjunctivitis. The virus or bacteria may be associated to STI.
If the infant has bacterial pinkeye due to Chlamydia, the symptoms usually, appear 5 to 12 days after delivery. The symptoms seem to appear 2 to 4 days if the infection is due to gonorrhoea.
The virus causing genital and oral can be transmitted at birth and emerge as conjunctivitis.
In a few cases, conjunctivitis arises as a reaction of the eye drops given to the infant at the time of birth, to prevent contamination. In such cases, the symptoms usually pass after 24 -36 hours.
Other causes of Pinkeye:
Red eyes can be symptoms of the following:
Acute Glaucoma is one of rarest forms of glaucoma. In this pressure is build up in eyes. Symptoms appear quickly including red eyes, pain, and loss of vision, which may be permanent, if not treated on time.
The cornea possible becomes ulcerated and inflamed. If the cornea is blemished, it can lead to perpetual vision loss.
Blepharitis, common inflammation of eyelids, causes irritation, itching, and redness. The patient will also have dandruff – like scales on eyelashes. This is not contagious.
Diagnosis of Conjunctivitis:
In many cases, the doctor can diagnose conjunctivitis by asking a few questions about the symptoms one experiences in recent past and perform a physical examination of the patient’s eye.
Not often, the doctor may also ask the patient to take a sample of the pus, which drains from his/her eye for lab analysis (culture). The doctor may require culture if s/he find the symptoms severe or suspects a high-risk cause like a serious bacterial contamination, sexually transmitted infection, or foreign body in the patient’s eye.
Treatment of red eye is based on the type of pinkeye.
Bacterial Conjunctivitis: The eye-specialist normally will prescribe an antibiotic ointment or eye-drop for the treatment of bacterial conjunctivitis.
Viral Conjunctivitis: In many cases, this form of conjunctivitis will run for several days, and no medical treatment is indicated or required. One can try a home remedy like applying a wet washcloth, or cold water to the eyes many times in a day can relieve conjunctivitis symptoms.
Allergic Redeye: Allergic pinkeye can be prevented by allergy medications or this can even shorten the bouts of this form of conjunctivitis. Sometimes the medication should be started before allergy flare-ups or allergy season begins. Consult the doctor for details.
Prevention from Conjunctivitis:
The following remedies can reduce the risk of passing or catching an infective conjunctivitis:
- Avoid rubbing and touching the affected eye.
- Wash hands frequently with warm water and soap, or use sanitizer.
- Keep eyeglasses clean
- Use goggles in swimming pool, and do not swim if infectious.
- Always remove contact lens at night, and follow instructions about lens hygiene.
- Avoid sharing personal stuff such as pillows and towels, contact lenses and make up with other people.
- It is better to throw away any make-up or contact lens solution, after the contagion is gone.
- One can reduce the risk of allergic and irritant pinkeye by avoiding known or potential allergens and irritants.
- This includes ensuring air conditioning units are maintained and clean, rooms are well ventilated, and avoiding misty or smoky atmosphere.
Myths Related to Conjunctivitis:
Following are the most common myths about pinkeye:
Myth #1: All types of conjunctivitis are contagious:
One of the most harmful and common misconception about red eye is that there is only one, highly infectious form. Red eye actually has various causes, including advanced dry eye, allergies, infections, and exposure to chemical fumes.
Myth #2: Any pinkness points to Conjunctivitis:
Many people believe that any red or pink colouration in the eye indicate the presence of conjunctivitis. However, ‘pink eye’ applies to colouration changes of the eyeball itself.
One can be infected at first sight: This is the most persistent myths about conjunctivitis is that the infected person can transmit the ailment at a single glance. Nevertheless, there is no transmission of diseases through eye contact, including conjunctivitis.
Refractive error is when the shape of your eye fails in bending the light correctly leading to a blurred image. One of the main types of refractive errors are myopia
A cataract is defined as a clouding of lens in the eye where your vision gets blurred. A cataract affects the eyes, when light that passes through the lens prevents a clearly formed image from reaching your retina. The disease is very common and usually, develops as your eyes age or due to any injury caused to the tissues that cover your eye's lens.
Types of cataracts:
- Senile Cataract: This is the commonest of all. It is age-related clouding of the lens. It can affect the near or distance vision and can also cause glare and change in glasses power.
- Secondary Cataract: It can be developed after surgery for other eye problems like glaucoma and other health conditions such as diabetes.
- Traumatic Cataract: It can develop many years later after an injury caused to your eye.
- Congenital Cataract: As the term explains, the disease may be inborn or some children might develop it at a later stage which often affects both eyes.
- Radiation Cataract: It can form after you are exposed to some form of radiation.
A cataract surgery involves the extraction or cleaning of the cloudy lens, which is then replaced by a clear artificial lens.
There are lenses that lies behind our iris and pupil which act much like a camera lens. It helps concentrate light onto the retina at the back of our eye to form a sharply defined image. Besides, the lens also helps our eyes to adjust focus and allows us to see things clearly both far away and up close. The lens is composed of protein and water where the protein is arranged in a manner to keep the lens clear thereby letting light pass through it.
However, as we grow old, some of the protein starts to become thick and cloud a small lens area. This is known as a cataract. With the passage of time, it may inflate and cover more of the lens, making it difficult for us to see.
Besides, there are other causes of cataract such as smoking, addiction of alcohol, prolonged sunlight exposure, to name a few.
When should you opt for a cataract surgery?
Believe it or not, but till date no eye drop or medication has proven to reverse or prevent the formation of a cataract. If a cataract is affecting your nearsightednessor alteration in your prescription, then new prescription eyeglasses may help to better your blurred vision. However, the only treatment for a cataract is the surgical removal of your natural lens. And, most eye doctors recommend this surgery only when the problem becomes severe and starts hampering your day-to-day activities, such as studying or driving at night.
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Cataract surgery is a procedure to remove the lens of your eye and, in most cases, replace it with an artificial lens. Normally, the lens of your eye is clear. A cataract causes the lens to become cloudy, which eventually affects your vision.
Cataract surgery is performed by an eye doctor (ophthalmologist) on an outpatient basis, which means you don't have to stay in the hospital after the surgery. Cataract surgery is very common and is generally a safe procedure.
How a cataract affects your vision
Cataract surgery is performed to treat cataracts. Cataracts can cause blurry vision and increase the glare from lights. If a cataract makes it difficult for you to carry out your normal activities, your doctor may suggest cataract surgery.
When a cataract interferes with the treatment of another eye problem, cataract surgery may be recommended. For example, doctors may recommend cataract surgery if a cataract makes it difficult for your eye doctor to examine the back of your eye to monitor or treat other eye problems such as age-related macular degeneration or diabetic retinopathy.
In most cases, waiting to have cataract surgery won't harm your eye, so you have time to consider your options. If your vision is still quite good, you may not need cataract surgery for many years, if ever.
When considering cataract surgery, keep these questions in mind:
- Can you see to safely do your job and to drive?
- Do you have problems reading or watching television?
- Is it difficult to cook, shop, do hardwork, climb stairs or take medications?
- Do vision problems affect your level of independence?
- Do bright lights make it more difficult to see?
Complications after cataract surgery are uncommon, and most can be treated successfully.
Cataract surgery risks include:
- Drooping eyelid
- Dislocation of artificial lens
- Retinal detachment
- Secondary cataract
Loss of vision
Your risk of complications is greater if you have another eye disease or a serious medical condition. Occasionally, cataract surgery fails to improve vision because of underlying eye damage from other conditions, such as glaucoma or macular degeneration. If possible, it may be beneficial to evaluate and treat other eye problems before making the decision to have cataract surgery.
Hello doctor My problem is My Left Eyelid is continuously twitching. People are saying so many things about like" It is a sign of Some sort of problem and all that" I don't know why it is happening continuously Please tell me Reason And solution?
Hey can I take fish oil supplements ,my eyes are little weak so can I take em or not please suggest.
My son age 12 now. He is used to see iPad daily more than a hour and I have taken him for eye test and result was right eye was 1.75 and left 0.75 .can I reduce his eye sight by food and exercises. Please suggest.
My mother aged 53 year old, some times her left eye becomes red around eye ball, and whole of left part of head gets pain and two days the reddish eye will get to normal. Why is this happening? Please help.
Cataract can be defined as the clouding of the natural lenses in the eyes. This is caused by the clumping of protein in the eye lens. Cataract is a common eye disorder and the leading cause of loss of vision in people who are past their fortieth birthday. Cataract can occur in one or both eyes. When diagnosed properly, cataract can be treated with surgery to prevent blindness.
Depending on where and how they develop, there are many types of cataract. The most common amongst these are:
1. Subcapsular cataract
These occur at the back of the eye lens. Diabetic patients are very susceptible to this kind of cataract.
2. Nuclear cataract
Yellowish-brown cataract that form in the center of the lens are called nuclear cataract. This is usually seen in cataract caused by ageing.
3. Cortical cataract
Cataract in the lens cortex are known as cortical cataract. These are wedge shaped and whitish in color. Spokes protruding out of these opaque wedges can be seen moving towards the center of the eye.
4. Congenital cataract
Though they are not common, babies can also have cataract. Cataract formed at birth or within the first year of a baby's birth are known as congenital cataract.
5. Secondary cataract
6. Traumatic cataract
If your vision becomes cloudy years after an eye injury, it could be a traumatic cataract. It can take several years for this to happen.
7. Radiation cataract
Though the type of cataract might differ from person to person, the symptoms are usually the same. Some of the common symptoms of cataract are:
1. Blurred vision
2. Reduced night vision
3. Increased sensitivity to light and glare
4. Seeing halos around lights
5. Colors appearing faded
6. Double vision
A reading test is the first step towards diagnosing cataracts. This is followed by tests to measure the eye pressure. Your doctor will also need to dilate the pupil to check the condition of the optic nerves and retina.
Surgery is the safest way to remove a cataract. Surgery is usually recommended when cataract begin inhibiting your daily life such as preventing you from driving, interfering with reading etc.
In most cases, this can be done as an outpatient procedure. The earlier it is diagnosed, the easier it is to treat. Hence, if you notice any of the symptoms mentioned above, get your eyes checked at once. The surgery is a day-care surgery only, so a person can go home the same day.