Archive for the ‘Eye Diseases’ category

Conjuctivitis Sufferers Should be Cautious in Using Eyeointment

April 18th, 2011

Ophthalmologists warn that if you have suffered from conjunctivitis you’d better go to the hospital to have your eyes examined and cure them accordingly. Don’t abuse eyeointment so that to avoid aggravating your disease and delaying its treatment. Instead, you should use the eyeointment correctly under the guidance of your doctor. Here I want to introduce you four notices of using eyeointment.


1.     Keep your eyes clean. As there are many secretions in your eyes when you are suffering cute conjunctivitis, it is insufficient to cure it only by relying on drug treatment. So it is of great importance to usually take good care of your eyes and keep them clean. You can wash your eyes with normal saline or 3% boric solution before using your eyeointment, thus getting the best effect.

2.     At the early period of suffering conjunctivitis, it is prohibited to use hormone eyeointment. On the contrary, cold compress should be better, which is helpful for detumescence. Don’t use hormone eyeointment until your inflammation is controlled.

3.     Use Moroxydine Hydrochloride Eye Drops and all kinds of anti-virus eye drops if you are suffering viral conjunctivitis.

4.     Protect your eyes from light and heat and don’t read or watch TV lying on the bed. Moreover, wear a pair of sunglasses to avoid the simulation of sunglight, wind, dirt, etc. If you find your conjunctivitis not getting better or you have got general malaise after accepting the treatment at home for a long time, this may mean you will get some complications. In such case, you should go to see doctor immediately. (Click here to learn more about conjunctivitis.)

Distance glasses for myopia correction

May 28th, 2010

The proportion of myopic or nearsighted individuals among the whole world population is on the rise in recent years. A testimony is that American eye care professionals found that myopia is more common in the United States now than it was 30 years ago. And it is estimated that approximately one third of the world’s population is affected by nearsightedness. So, myopia as a basic form of visual refractive error has become a major risk to human beings’ eyesight. Lots of activities will be affected by this condition. The typical symptom of nearsightedness is a difficulty in seeing objects in the distance. This explains why eyeglasses which are capable of correcting myopia are some times called distance glasses. With such a difficulty, myopic students and adults might squint or feel extremely fatigued during study and other activities like driving. In some cases, headaches and eye strain will be experienced.

Modern lifestyles may have contributed greatly to the high occurrence rate of myopia. But there have not been some preventable approaches that are commonly agreed and recognized by both the average and eye care experts. This makes finding the right solutions to this condition extremely important. If prevention remains highly impossible, the best practice is to find remedies. Present now, the commonest remedy to myopia is distance glasses or myopia glasses. Myopia occurs when the eyeball is slightly longer than usual so that light rays entering the eyes can not be focused properly on retina. And myopic glasses take use of prescription lenses are supposed to help the light rays focus properly, in which case normal, clear vision is “restored”. And myopia eyeglass lenses come in different powers according to the degrees of severity of the condition.

Except for distance glasses, there are actually other solutions to myopia, including mainly prescription contact lenses and eye surgeries. Contact lenses function in a similar way to prescription eyeglasses that they both utilize powered lenses. But refractive eye surgeries like PRK and LASIK will remove certain amount of corneal tissues and generate a permanent correction.

Common types of eye infection

March 31st, 2010

A small part of eyeball is exposed to air, chemical or industrial setting directly. So the eye has the risk of getting eye infection from bacteria, fungi, viruses, chemical drugs and so on.

Eye infections can occur in different parts of the eye, for example conjunctiva or eyelid. Two of the most common eye infections are conjunctivitis and stye. These eye infections can affect just one eye or both eyes. Conjunctivitis is also called pink eye or red eye. It is an eye infection of the conjunctiva, which is the thin transparent layer that lines the eyelid and covers the white part of the eye, due to the infection by bacteria, fungi, viruses, or sometimes the eye infection is associated with contact lens use. The symptoms of this kind of eye infections include redness, itching, swelling, pain or other vision problems. Infectious type of eye infections can spread easily. In this case, it is extremely important to wash hands frequently, and do not share things that connected with eyes directly, for example, towels, face cloths or eye drops.

In most eye infection case, conjunctivitis usually doesn’t cause damage to the eyesight, but some eye infections can cause serious vision problems or even blindness. So it is important to seek medical advice when an eye infection occurred. Treatment for this eye infection can be eye drops, ointments, antibiotics or compresses depending on the cause.

Styp is another common eye infection, which is a bump on the eyelid when bacteria get into the hair follicle of the eyelash. Other types of eye infections include herpes zoster or shingles and herpes simplex infection.

What to Do If We Have Presbyopia and Other Near-vision Problems Simultaneously?

March 29th, 2010

Eye is such one of the most important organs for our human beings that we should care it a lot. However, each of us will get old as time goes on. And some unavoidable eye problems may occur as a result. For example, presbyopia is an eye problem that often strikes people who are over forty. And for some of us who have nearsighted or astigmatism, etc. they may suffer a lot when they are over forty.

Luckily, there are two methods to tackle such condition- wearing glasses and receiving surgery.

In fact, ordinary glasses are useless in solving those eye problems. And one of the best alternatives is bifocal lens. In fact, bifocal lenses are also called bifocal lenses Benjamin Franklin. This is because Bifocal lens history is firmly connected with him.  Almost two and a half centuries have passed and many innovations are made on it since bifocal lens was created by Benjamin Franklin. Bifocals are some of the most widely used reading glasses for many aged people or people of other age group.  Most of such lenses are lined, for they are combined by two different cut lenses. And now, there are some no-lined bifocal lenses, also called progressive bifocals. Those lenses are much advanced than conventional bifocals, for there is no radical vision change. Wearers will feel no lenses on their face, as those lenses can provide natural vision. Therefore, most people tend to wear progressive bifocals. And Facts have proved that many people have had their eye problems solved by wearing bifocals, be conventional bifocal lenses or progressive bifocals.

Or in some other cases, like the problems are very serious or the patients do not want to wear glasses, eye surgeries are better alternatives. Among all those eye surgeries, receiving bifocal lens implant is rather good. During this process, only some small incision will be made and patients will not suffer from any great pain. After the surgery, patient will find that they have new eyes, for their eye problems are cured successfully. However, surgery will cost much than ordinary methods.

Keep in mind, we should consult with our eye doctors, no matter which method we choose. If we can do as our doctors suggest, we can get very good results in solving those horrible eye problems.

What is glaucoma

March 7th, 2010

Glaucoma is an eye disease caused by increased intraocular pressure (IOP) resulting either from a malformation or malfunction of the eye’s drainage structures.  The eye constantly produces aqueous, which fills the anterior chamber, the space between the cornea and iris. If the aqueous can’t filter out of the anterior chamber through a complex drainage system, glaucoma occurred. If left untreated, glaucoma may lead to permanent damage of the optic nerve and resulted in vision loss. Normal people’s IOPs fall between 8 and 21 when the patients will be much higher, and it can be a signs for developing glaucoma.

There are several types of glaucoma, common types including open angle, acute angle closure, secondary glaucoma and congenital glaucoma. Some types of glaucoma such as angle closure and congenital have symptoms, for example, sudden decrease of vision, extreme eye pain, headache, or light sensitivity. But in most case, glaucoma does not have symptoms. This is reason why glaucoma has been called the “sneak thief of sight” causing the loss of vision gradually over a long period of time and is often recognized when the disease is quite advanced. So people with symptoms or those who are more than 40 years old should have an annual examination including the screening for glaucoma, for example measuring the intraocular pressure, or if necessary doctor will evaluate the health of optic nerve by ophthalmoscopy and the peripheral vision and the structures in the front of the eye by gonioscopy.

Most patients with glaucoma only need to control the eye pressure. They may use one or several medications, usually eye drops, to reduce the pressure. Surgery may be carried out when medical treatment fails to control the pressure, in order to allow fluid to drain from the eye efficiently.

A list of eye diseases

February 19th, 2010

Human Eyes are important organs that detect light and allow light to enter it and project onto retina, at the rear of the eye, and then send signals along the optic nerve to the visual areas of the brain. The eye includes a lens that is very similar to lenses of optical instruments such as cameras. The muscles around the iris can relax or tighten the pupil to regulate the amount of light that enters the eye.

Every parts of the eyes may be disordered, thus different kinds of eye diseases occurred. The WHO divided eye diseases mainly into several parts. Cataract and glaucoma are two of the most common eye diseases, the former one is due to the opaque of lens, and the later eye disease is belong to optic neuropathy.

The eye disease of disorders of sclera, cornea, iris and ciliary body, including scleritis, keratitis, corneal uler, snow blindness – a painful eye disease caused by exposure of bright light, corneal neovascularization, fuchs’ dystrophy, keratocunus, Keratoconjunctivitis sicca – an eye disease usually called dry eyes, iritis, and uveitis.

Other eye diseases are disorders of choroid and retina. For instance, retinal detachment – a kind of eye disease refers to the detachment of retina from the choroid, retinoschisis, hypertensive retinopathy, diabetic retinopathy, retinopathy, retinopathy of prematurity, age-related macular degeneration, macular degeneration, retinitis pigmentosa, and macular edema.

Floaters is an eye disease dur to the disorders of vitreous body and globe with shadow-like shapes appare sometimes in the field of vision.

When ocular muscles are out of control, many common eye diseases arise, such as strabismus, progressive external ophthalmoplegia, esotropia, exotropia, hypermetropia, myopia, astigmatism, anisometropia, presbyopia and internal ophthalmoplegia.

Many eye diseases belong to visual disturbances, for example amblyopia – an eye disease also called lazy eye, scotoma, color blindness, achromatopsia and nyctalopia.

Blindness is the most severe eye disease in which the brain can’t receive optical information.

Eye treatment methods for common eye diseases

January 4th, 2010

Eyes are easy to be affected by bacteria, fungi or viruses, or to be injured, with exposure to a foreign body or chemical. There are hundreds types of diseases related with human eyes.

Eye treatment is the method that an ophthalmologist adopt to cure eye diseases in his office or an emergency department. Eye treatment can also be carried out at home by your own, for example, flushing the eye with great amounts of lukewarm tap water or commercially prepared eyewash solution under eye infection by chemical or eye injury. However, when a foreign body gets into the eye, you should not rob your eyes, and eye irrigation is usually not recommended. Eye treatment methods are usually different according to different types of eye disease. Following listed some medical eye treatment methods for common eye diseases.

Viral conjunctivitis and bacterial conjunctivitis are usually treated with antibiotic eye drops, when allergic conjunctivitis is normally treated with antihistamines.

The eye treatment for corneal abrasions and ulcerations includes antibiotic eye drops, eye ointment, and pain medication.

Chemical eye burns should be evaluated by an ophthalmologist besides an eye treatment of eye irrigation.

Scrubbing the eyelid edges with mild shampoo is the eye treatment method for curing blepharitis by removing excess oil.

The eye treatment method for styes or chalozions is usually conservative, by placing warm compresses for 15 to 20 minutes with cloth with hot water several times a day.

The eye treatment method for glaucoma is more complex. Treatment for severe glaucoma usually begins with several types of eye drops, such as a topical beta-blocker, a topical steroid drop, and a pupillary constricting eyedrop. Emergency surgery may be carried out for acute glaucoma.

Traumatic events to the eye should be managed by ophthalmologists and need immediate evaluation in the emergency department.

Knowledge of cataract

December 23rd, 2009

A cataract is a clouding of the eye’s lens, which is behind the iris and the pupil. Cataracts affect vision of more than half of the old over 80. A cataract may happen to either or both eyes. But it is not contagious. Three types of cataracts are commonly recognized: subcapsular cataract, nuclear cataract and corticl cataract.

There are many clear symptoms of a cataract, such as cloudy and blurry vision, fading colors, poor night vision, glare and double vision or multiple images in one eye. Patients show these symptoms more or less according to the size of the cataracts.

The lens is a part of the eye that is responsible for focusing light onto the retina and adjusting focus. Nerve signals are formed once light reaches the retina and then sent to the brain. As people age, some of the proteins clump together and cloud a part of the lens, then a cataract is formed. Over the time, cataracts may grow larger and cover more of the lens, making the vision worse. So cataracts are always related to aging. But according to many studies, ultraviolet light and cosmic radiation are associated with cataract development. People with diabetes are more probably to suffer from cataracts. Bad habits such as cigarette smoking and heavy alcohol consumption may also cause a cataract.

How to treat cataracts? At the early stage of a cataract, glasses, strong bifocals and magnifier may be enough. But when the cataract has progressed enough that seriously impairs the vision, Cataract surgery is needed. Cataract surgery is simple and safe and will effectively restore your good vision.

Differences between hyperopia and presbyopia

December 6th, 2009

Hyperopia is also known as farsightedness or farsighted eye. It is the opposite eye condition of myopia or nearsightedness. Hyperopia is a defect of vision that has difficulty in focusing on near objects that can see distance objects, or in an extreme situation cause a patient to be unable to focus on object at any distance. When the eyeball of the farsighted patient is too short or when the power of the cornea and lens is insufficient that the lens of the eye cannot become round enough, farsightedness or farsighted eye appears, and the vision will be blurred. People with hyperopia or farsightedness can also suffer ashthenopia, amblyopia, strabismus, accommodative dysfunction and binocular dysfunction.

Hyperopia is often confused with another kind of eye disease — presbyopia, which is also referred to as farsightedness or farsighted eye, since presbyopia just like hyperopia can’t focus on near objects. Their causes are totally different, although their signals may very similar. The causes of hyperopia are typically genetic and involve the eye structure. When the causes of presbyopia are related with a reduced accommodative amplitude by natural aging changes with the crystalline lens.

Hyperopia or farsightedness can be corrected by convex lenses in eyeglasses or contact lenses, which should be provide by an eye doctor (such as ophthalmologists, optometrists, or orthoptists) or opticians, after an eye examination. A few amounts of hyperopia may be left uncorrected. In other conditions, if eyeglasses or contact lenses are not favorable by the patient with farsighted eyes, refractive surgery procedures may be carried out for correcting farsightedness.

Age-related diabetes

November 27th, 2009

Retinal problems caused by diabetes are called microvascular abnormalities. Bleeding is also possible resulted from both natural blood and new blood vessels. These blood leaks damage the retina and cause vision loss. In some cases, diabetes leads to diabetic retinopathy.

Visual symptoms of diabetes include double vision and droopy eyes and so on. Usually, a medical doctor can determine diabetes with a blood sugar measurement but an eye doctor is supposed to treat vision problems caused by the disease. Diabetes appears in high sugar count in the blood and insufficient insulin production. Actually, it causes vision problems because there is a lack of oxygen in diabetic patients’ eyes. This lack of oxygen is in turn caused by new blood vessel growth.

Diabetes has been the leading cause of blindness in America. Early detection and treatment are essential to control the disease, thus decreasing the risk of vision loss. What’s more, it is also important for diabetic patients to maintain regular visit to the doctor’s. Yearly exams are highly recommended, in case of blood leakage. Once any leakage is detected, the doctor will use a laser to seal the bleeding vessels or destroy unnecessary retinal areas.

In fact, natural aging is associated with other visual problems such as presbyopia, in addition to diabetic retinopathy. Eye liquids also change in color and density, resulting in dim vision. Dry eye problems can be caused by tears change in old people. Eye droopiness is quite common in old individuals and their pupils become smaller and move slowly. While most of these changes are natural and require no worry, those serious ones should be under regular monitor, including diabetes, high blood pressure, macular degeneration and glaucoma.