11 Things That Can Change Your Eye Color

What primarily determines the color of a person's eyes?

• The amount and type of melanin in the iris.

• The size of the pupil.

• The reflection of light from the retina.

• The number of blood vessels in the eye.

Why do many babies have lighter eye colors at birth that may darken over time?

• Their eyes are still developing and producing more pigment-making cells.

• They are exposed to more sunlight after birth.

• Their diet changes as they grow older.

• The lens of their eye becomes thicker.

What is Arcus Senilis, a condition that can make eyes appear lighter in older individuals?

• A genetic disorder affecting melanin production.

• An inflammation of the iris.

• A buildup of lipids around the iris.

• Damage to nerves in the head and neck.

In Pigment Dispersion Syndrome, how does the iris lose pigment?

• The iris becomes inflamed and destroys pigment cells.

• Excess copper deposits in the cornea, changing its color.

• The iris bows backward, causing fibers to rub off pigment.

• Melanocytes stop producing melanin entirely.

What is iris melanoma?

• A type of eye infection.

• A cancer that starts in the melanocytes of the iris.

• A condition causing temporary blurry vision.

• A genetic disorder affecting pupil shape.

How is retinoblastoma, an aggressive eye cancer in young children, sometimes treated?

• By using eye drops to reduce eye pressure.

• By injecting chemotherapy drugs into the jelly-like substance of the eye.

• By surgically removing the entire eye.

• By wearing special glasses that filter light.

What is a common side effect of prostaglandin medications used to treat glaucoma?

• Making the eyes appear lighter.

• Causing temporary blindness.

• Darkening the color of the iris.

• Increasing sensitivity to light.

What happens to the melanocytes in the eye when a person has vitiligo?

• They multiply rapidly, causing dark spots.

• They are destroyed by the immune system.

• They change shape, leading to blurry vision.

• They become overactive, producing too much pigment.