Dr. Sanford Gerry Koyama O.D.

Recommended Articles

• Treatments for Cataracts

  A cataract is blurring of the lens of the eye. The lens is oval-shaped and mostly consists of water and protein. It is located at the back of the iris and pupil. The lens protein molecules are organized in a way that makes it clear so that light can pass through it to the retina. The focus of the...

• What Causes Albinism?

  What is albinism?Albinism is a group of genetic disorders that cause little or no production of the natural pigment called melanin. The color of your skin, hair, and eyes depend on the type and amount of melanin produced by your body. Most individuals with albinism have sun sensitivity, which makes...

• What are the Signs and Symptoms of Cataracts?

  When the lens of the eye becomes clouded, it is a condition known as cataracts. In patients with cataracts, proteins that are contained in the lens begin to break down, making the lens cloudy with an increase in age. Because cataracts develop very slowly, vision may not be affected right away and...

• What to Expect After LASIK Eye Surgery

  LASIK eye surgery is a corrective procedure that aims to rectify vision distortions that are caused by the changing curvature of the cornea and shifting length of the eyeball. The cornea is a transparent coating that bulges on the outside of the eyeball, and allows light to penetrate its surface at...

• What are Bilateral Cataracts?

  The lenses of healthy eyes are usually clear. Cataracts occur when a person's lenses become cloudy and opaque. Cataracts can affect both eyes at the same time, called bilateral cataracts. Bilateral cataracts are very common, but cataracts must occur on their own and cannot spread from one eye to the...

• What Causes Iritis?

  What is iritis?The colored part of the eye is called the iris. When the iris gets inflamed, the condition is called iritis, which is also called anterior uveitis. The muscles present in the iris help in pupil contraction and relaxation. The anterior and posterior chambers of the eye are also...