Guide to Eye Diseases

Four types of eye occlusion: Blocked blood flow may bring strokes in some parts of the body, including the eye. Eye blockage is caused by damage on vital structures such as retina and optic nerve.
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Reasons for color blindness: If you can not distinguish blue and yellow or red and 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.
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Causes and treatments of corneal ulcer: A corneal ulcer is one of the most common eye problems, which may be caused by a variety of reasons. Bacterial infections from eye injury and trauma are common causes of corneal ulcer symptoms such as red, painful eye, discharge and vision reduction.
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Causes and treatments of CMV retinitis: Cytomegalovirus (CMV) retinitis is an eye disease that closely relates to Acquired Immunodeficiency Syndrome (AIDS). CMV retinitis 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.
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Cornea transplant procedure and recovery: Also called corneal graft and penetrating keratoplasty, a cornea transplant replaces the damaged central corneal tissue with healthy corneal tissue. People with damaged corneal tissue have blurry vision or glary vision. It is estimated that about 40,000 people in the United States receive cornea transplant each year, 79% of which never suffer from graft rejection. Even if graft rejection occurs, it can be treated with successful management.
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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. Resulted from internal eye pressure (IOP) built-up and optic nerve damage, glaucoma has been the second leading cause of blindness.
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Chalazion treatments: Chalazion is one of the common eyelid problems, which displays in the form of benign, painless bump or nodule inside the eyelid. Chalazia contain pus and blocked fatty secretions, which can no longer drain out. Most of the chalazia drain out under periodic warm compresses and eyelid massaging.
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Treatments for various types of conjunctivitis: Viral and bacterial conjunctivitis can be relieved by warm compress and eye drops or pills are used to treat allergic conjunctivitis. Different types of conjunctivitis have different symptoms and require different treatments.
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An introduction to pink eye: Conjunctivitis has various symptoms such as pink eye, burning, stinging, irritation and pain, among which pink eye is the most obvious and common one.
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Basic and mixed multifocal IOLs: Since standard monofocal IOLs can only provide clear distance vision and require patients to wear reading glasses for close vision, presbyopia-correcting IOLs with multifocal designs are approved to offer clear vision at multiple distances. There are three brands of multifocal IOLs that are FDA-approval: AcrySof IQ ReSTOR, ReZoom and Tecnis.
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