Color vision deficiency, also known as color blindness, affects approximately 1 in 12 men and 1 in 200 women worldwide. The most common type of color blindness is red-green color blindness, which is inherited from the mother through chromosome 23, the sex chromosome. Color blindness comes in various forms. Humans and most primates are trichromatic,...
Category: Eyes
What is Amaurosis Fugax
Amaurosis fugax refers to a temporary episode of vision loss caused by a disruption in blood flow to the retina. While not classified as a disease in itself, it serves as an umbrella term for the various symptoms that contribute to this condition and often indicates an underlying disorder. Typically, the loss of vision is...
10 Questions about Myopia
Myopia, commonly referred to as nearsightedness, is a vision disorder that affects individuals who can clearly see objects up close but struggle to focus on things in the distance. While it typically manifests during childhood, myopia is a common condition that can be effectively treated. Ongoing research has enhanced our understanding of myopia, leading to...
Causes and treatments for Strabismus
Strabismus, also known as “lazy eye,” is a condition characterized by misalignment of the eyes. One eye appears to be properly aligned and moves normally, while the other eye is positioned upwards or downwards, or off-center to the left or right. The misaligned eye may alternate between the two positions, shifting from proper alignment to...
Causes and Symptoms of Blepharitis
Blepharitis, also known as eyelid inflammation, is a medical condition that can cause your eyes to crust shut in the morning or make you feel like there is a piece of sand in your eye that needs to be wiped away. This condition primarily affects the outside, front edge of your eyelids where your eyelashes...
The Development and Effects of Amblyopia or Lazy Eye
Amblyopia, commonly known as lazy eye, has a significant impact on the vision of young children, causing one eye to be weaker than the other. As a result, the brain disregards the weaker eye and prioritizes the stronger one, leading to a compensatory effect. Failure to address this condition can result in permanent vision loss...
10 Signs of Cataracts
Cataracts occur when the lens of the eye becomes cloudy, hindering its ability to collect visual information. Initially, the symptoms can be subtle and sporadic, making them difficult to detect. However, as the condition progresses, certain signs become more prominent. Here are ten signs that may indicate the presence of cataracts: Red eyes: You may...
Common Causes of Blurred Vision
Blurred vision can be a cause for concern and anxiety when it occurs. Our vision is a crucial sense, and any problems with it can be unsettling. However, it is important to note that blurred vision is a common issue and often has straightforward treatments. Nevertheless, it is essential for anyone experiencing changes in their...
What is Central Retinal Artery Occlusion?
Central retinal artery occlusion, commonly referred to as CRAO, is a condition characterized by the blockage of blood flow through the central retinal artery. This artery plays a crucial role in supplying the retina and optic nerve with necessary nutrients. When an obstruction occurs, it can lead to various adverse effects, including a sudden, painless,...
What You Should Know About Nyctalopia or Night Blindness
Nyctalopia, commonly known as night blindness, is not a standalone ailment but rather a symptom of an underlying eye condition. While some forms of nyctalopia can be treated effectively, others may not have a cure. Individuals affected by night blindness do not necessarily lose their ability to see in the dark; however, their vision significantly...