Mar 21, 2024 · It’s rare, but some people have more than one working pupil in a single eye. It isn’t clear what causes polycoria, but there may be a link to conditions like glaucoma and cataracts. Not everyone...

Two major conditions cause a red or pinkish eye color: albinism and blood leaking into the iris. Although people with albinism usually have very, very light blue eyes due to a lack of pigment, some forms of albinism can cause eyes to appear red or pink.

Oct 22, 2020 · Here are 20 rare diseases that ophthalmologists treat. Up to 30% of people with severe vision loss in both eyes experience hallucinations. They may see geometric patterns or even people, animals or buildings that aren’t really there. Some might worry they’re losing their grip on reality, but that’s not the case.

Apr 17, 2013 · From pupula duplex (two pupils) to extreme tumors, take a look at some of the most shocking eye photos. Drs. Ali Mahdavi Fard and Leili Pourafkari treated a patient who had an unusual, hairy mass of tissue growing on one of his eyes.

Apr 25, 2021 · Black Eyes — aniridia, a very thin iris that is not visible, making the eye have no color. Cat Eye Syndrome — a rare genetic disease with retinal deformities that look like cat eyes. Crying Blood — haemolacria, from a genetic tear duct malfunction that’s rare; this condition can also occur from other diseases.

Serious eye problems often do not cause any pain. Here are 8 warning signs that should not be ignored. According to the Centers for Disease Control and Prevention (CDC), more than 21 million Americans are impacted by vision problems.

Explore 7 unusual eye conditions, including hairy eyeball, red eyes, and having two pupils in one eye. Learn more about the strange and fascinating world of rare eye conditions and gain a deeper understanding of the complexity and diversity of human vision.

Aug 11, 2024 · Some common types of iris anomalies include heterochromia (different colored irises), aniridia (partial or complete absence of the iris), coloboma (a gap or hole in the iris), and dyscoria (abnormal pupil shape).

Jul 29, 2014 · Instead, the iris becomes transparent enough that the blood vessels behind it show through, creating the reddish color. Unfortunately, the lack of melanin means the retina is less efficient at absorbing light.

May 20, 2024 · Rare eye diseases can affect different parts of the eye, leading to various visual impairments. For example, diseases that affect the cornea can cause blurred or distorted vision, while those that affect the retina can result in loss of central or peripheral vision.