Prescription eyeglasses for sports

Prescription eyeglasses for sports are almost indispensable to those who indulge in serious sporting activities. People who play sports need to see clearly which is why they have to choose special prescription eyeglasses. Besides allowing you to see clearly, these items of eyewear will also provide protection to your eyes and because such items are impact resistant they also reduce the risk of suffering injuries from broken lenses. Continue reading Prescription eyeglasses for sports

Four types of eye occlusion

Blocked blood flow may bring strokes in some parts of the body, including the eye. Eye-related blockage can be caused by damage to any vital eye structures or parts such as the retina and optic nerve. Once an ocular blockage is caused, nutrients and oxygen can no longer flow through the blood, which in turn may result in eye strokes. Eye exams can search out signs of an eye occlusion. There are mainly four types of eye occlusion, depending on the location in which they are found. Continue reading Four types of eye occlusion

Reasons for color blindness

If you can not distinguish blue from yellow or red from green, or sometimes other people may correct the color you see, you probably have color blindness. Color blindness is neither a form of blindness nor a full range of color disability. People with color blindness usually lack the ability to see certain colors properly. This is just a form of vision deficiency. Generally speaking, people suffering color blindness can not perceive differences between some of the colors that normal people can differentiate. Genetic nature is the major cause, whereas damage to the eye, nerve or brain may also cause color vision deficiency. Continue reading Reasons for color blindness

Causes and treatments of corneal ulcer

Involving disruption of the corneal epithelial layer, corneal ulcer is one of the most common eye problems. Other names for this ocular condition contain ulcerative keratitis and eyesore. This can be an inflammatory or infective condition. In particular, people living in the tropics and the agrarian societies are more susceptible to this problem. There are a wide variety of contributing factors. Continue reading Causes and treatments of corneal ulcer

Causes and treatments of CMV retinitis

Cytomegalovirus (CMV) retinitis is an eye disease that closely relates to Acquired Immunodeficiency Syndrome (AIDS). CMV is a DNA virus in the family Herpesviridae and it can produce large cells containing nuclear and cytoplasmic inclusions. This virus can be found in everyone but a normal immune system can fight against is and prevent related damage. However, an ineffective immune system can not avoid the development of CMV retinitis, which always invades the retina and affects the light-sensitive receptors, leading to acuity reduction and peripheral vision decrease. Without proper treatment, a detached retina and blindness can be caused within two to six months. Continue reading Causes and treatments of CMV retinitis

Cornea transplant procedure and recovery

Also called corneal graft or penetrating keratoplasty, a cornea transplant replaces the damaged central corneal tissue with healthy corneal tissue. People with damaged corneal tissue usually suffer blurry vision or glary vision. It is estimated that about 40,000 people in the United States receive cornea transplant each year, and 79% of them do not experience graft rejection. Even if graft rejection occurs, it can be treated with successful management. Continue reading Cornea transplant procedure and recovery

Types of glaucoma and diagnosis

In the United States, more than a half of the 2.5 million glaucoma patients suffer from different degrees of vision loss. More seriously, vision loss caused by glaucoma is often irreversible. Resulted from internal eye pressure (IOP) build-up and optic nerve damage, glaucoma has been the second leading cause of blindness, second only to age-related macular degeneration. At the beginning, only vision deterioration is caused but untreated glaucoma always leads to permanent damage of the optic nerve and resultant loss of visual field. Eye drops with medication can be used to control glaucoma by bringing down IOP. Careless use of these eye drops may bring higher risks of vision loss. Further treatments include glaucoma surgery, lasers and medications. This article focuses on the classification of different types of glaucoma. Continue reading Types of glaucoma and diagnosis

Chalazion treatments

Also named as Meibomian gland lipogranuloma, chalazion is one of the common eyelid problems. This ocular problem usually appears in the form of benign, painless bump or cyst inside the eyelid. More exactly, chalazia are subacute, nontender, and painless nodules, so that they are different from styles. In addition, chalazion differs from stye in the fact that it can become acutely inflamed out but usually point inside the eyelid. Continue reading Chalazion treatments

Treatments for various types of conjunctivitis

Sometimes called madras eye, conjunctivitis refers to the condition of acute inflammation of the eye’s conjunctiva, which is the outermost layer of the eye. This abnormal ocular condition has some noticeable signs, e.g. redness, irritation and watering. The reason for conjunctivitis is quite complex and many factors may be involved. Classified by cause, conjunctivitis cases can be divided into allergic conjunctivitis, bacterial conjunctivitis, viral conjunctivitis and so forth. Different types of conjunctivitis have different symptoms and require dedicated treatments. For instance, viral and bacterial conjunctivitis can be relieved by warm compress and eye drops or pills can be used to treat allergic conjunctivitis. Continue reading Treatments for various types of conjunctivitis

An introduction to pink eye

As an acute inflammation, conjunctivitis has various symptoms, e.g. pink eye, burning, stinging, irritation and pain, among which pink eye is the most obvious and common one. As a result, conjunctivitis is usually called pink eye for easier understanding. Pink eye can occur in both the young and adults. Contagious pink eye spreads via coughing, sneezing, communal settings and similar channels. Frequent hand washing and disinfection spray are some of the common treatments. With a timely treatment, most cases of pink eye can be cured, while untreated and persistent pink eye can lead to a consequence as serious as vision loss. Continue reading An introduction to pink eye