Dr. Hui N/a Zhao MD, PHD

Recommended Articles

• What Are the Causes of Conjunctivitis?

  What is conjunctivitis?Conjunctivitis, also commonly called as “pink eye”, is an eye infection caused by either bacteria or viruses. You can also develop a "pink eye" if you are exposed to certain allergens that can irritate your eyes. When you have a pink eye, the conjunctiva of your eye is...

• What is Chalazion? Know about its Symptoms, Causes and Treatment

  What is Chalazion?A chalazion is a benign and painless nodule which can occur in the upper or lower eyelid. It is common and is sometimes called a meibomian cyst or a tarsal cyst. The term chalazion (pronounced kah-la'-ze-on) originates from the Greek word which means a small lump. These nodules...

• What is Blepharitis?

  What is Blepharitis?Blepharitis is the inflammation of the eyelids, usually affecting both of the eyelids where eyelashes grow.The inflammation of the eyelids is often a chronic medical condition, which is very hard to treat. Blepharitis is a condition that does not affect vision. It is also not...

• In Plain Sight: Vision Changes Linked to Parkinson’s Disease

  Parkinson’s disease is a chronic, progressive movement disorder that affects the nervous system. It is characterized by gradual death and breakdown of nerve cells in the brain resulting in the decreased production of a chemical messenger called dopamine. Reduced dopamine levels cause abnormal...

• What is Dry Eye?

  Dry eyes are a condition in which the eyes do not get enough moisture and lubrication from tears. It is the tears that provides constant moisture to the eyes, which is very important for comfort of viewing. It is a very common condition in the population, particularly in people above 40-years-old....

• What Causes Cataracts, and What Can Be Done to Fix Them?

  When the lens of the eye becomes clouded, it is deemed to be cataract. This is the leading cause of vision loss in people over the age of 40, and cataracts are responsible for the majority of blindness across the globe. Over 22 million Americans over the age of 40 are currently affected by...