Similar to a bruise under the skin, a subconjunctival hemorrhage happens when a small blood vessel located between the sclera (white portion of an eye) and the conjunctiva (lining on the surface of an eye) breaks and covers the sclera with blood. Unlike broken blood vessels located under the skin which

Colored contact lenses allow you to temporarily change your eye color whether or not you need to correct impaired vision. In this way, you can create a more subtle eye appearance, wear a crazy design for special occasions, or just enjoy a new eye color. Will Colored Contacts Change the Way I See? Yes,

A wandering eye is a type of eye condition known as strabismus or tropia, and it may be caused by damage to the retina or muscles that control the eye, stroke or brain injury, or an uncorrected refractive error like farsightedness. With a wandering eye, one eye deviates or wanders in a different direction

For many adults, reading and writing come so naturally that they seem almost effortless. However, reading and writing are actually complicated skills that take significant effort to learn. For example, reading involves recognizing letters, associating letter combinations with their corresponding sounds,

Lazy eye, also referred to as amblyopia, is a condition that develops in infancy or early childhood, and it typically starts when the focus in one eye is more enhanced than the other. The eye with less focus might be impaired due to a significant amount of farsightedness or astigmatism, or something

Dyslexia When a child has difficulty reading due to problems recognizing speech sounds and learning how they connect to words and letters, the condition is known as dyslexia, a learning disorder caused by genetic traits that disturb how the brain works. It affects areas of the brain dealing with language

Crossed eyes, also known as strabismus, refer to a condition in which both eyes do not look at the same place at the same time. Often times they both turn in, but may also turn out. What Causes Crossed Eyes? The six muscles attached to each eye, which control how it moves, receive signals from the brain.

Symptoms and Problems Caused By Autism Autism is a neurological disorder in which the person has difficulty processing and reacting to information received from their senses. The individual also has trouble communicating and interacting socially. Signs of autism include: Lack of shared social interaction Postponement

Approximately 11% of school-aged children have been diagnosed with attention deficit/hyperactivity disorder (ADHD), according to recent studies. The central symptoms of ADHD -- difficulty sustaining attention, poor control of behavior, hyperactivity -- make it difficult for children to succeed in school.

Parents are often aware of the need to screen children for nearsightedness or farsightedness, but fewer know about other pediatric vision problems. Ocular motor dysfunction is a condition that often manifests in childhood, although adults may also have this disorder. Because ocular motor dysfunction

Convergence insufficiency is a relatively common eye condition that is typically diagnosed in childhood. A study of two large optometry clinics found that 17.6% of children who received vision exams had convergence insufficiency. As this disorder may cause difficulty focusing on written pages, some children

Simply put, accommodative dysfunction means that the eyes have difficulty focusing properly. Studies suggest that between 2 and 17% of children may suffer from accommodative dysfunction. The nature of this disorder means that it sometimes goes unnoticed in standard vision screenings conducted at school.

Learning disabilities may include dyslexia, math disorder, writing disorder, auditory processing deficits, or visual processing deficits. Although each child with a learning disability is unique, many also have associated visual problems. Addressing these vision disorders may alleviate some symptoms

Ophthalmology addresses the physiology, anatomy and diseases of the eyes. Pediatric ophthalmology focuses on the eyes of children. Pediatric ophthalmologists examine children’s eyes to see if they need corrective lenses or other treatments to improve their vision. Training for Pediatric Ophthalmologists Pediatric

Eye movement refers to the voluntary and involuntary movements of the eyes that assist with obtaining, fixating and following visual stimuli. The eyes are each connected to a system of six muscles. Light is sensed by the retina, which is a type of tissue that contains cells known as photoreceptors. These

The eyes have a focusing system called accommodation; it allows for visual clarity. The system is rested when you look at an object that is far away and is not forced to strain like it would if the target were close. In normal circumstances, the eyes are able to effortlessly transition between objects

Each eye picks up a slightly different image, but through a process called fusion, the brain blends the images together to make one three-dimensional picture. Good eye coordination is needed, however, and allows the eyes to sustain proper alignment so that they can focus on practically the same image,

The primary sufferers of technology-related eyestrain used to be adults whose work involved computers. Now, however, people of all ages use computers, smartphones, tablets and gaming devices, which can take their toll on the eyes. As people’s reliance on technology grows, so does the incidence of eyestrain.

The eye has many parts that work together to create vision. The eyes themselves are only part of “seeing.” The brain is also involved. The eyes, though, begin the complex process of vision by gathering, focusing and passing on visual information to the brain. To help you learn how the eye works,

The human visual system is a complex network including the eye, ocular nerves, and key brain areas that process visual information. Under most circumstances, we use information from both eyes to create a single visual image. This ability to converge information from both eyes is called binocular vision.

Visual perception refers to a set of skills used to collect and interpret visual information taken in from our environment. The visual information gathered is combined with our other senses, allowing us to derive meaning from what we see. Through the process of merging visual data with our other senses,

Suffering from watery eyes, also known as tearing, or epiphora, is a condition that happens when the eyes make too many tears or produce them constantly. There are many causes of excessive tearing, but only a few are signs of more serious conditions. Causes of Excessive Tearing One of two things often

Swollen eyelids are a fairly common eye condition caused by inflammation or excess fluid in the connective tissues surrounding the eye. Depending on the cause, swollen eyelids can be painful or not painful and affect the upper eyelid, the lower eyelid, or both. Swollen eyes can be caused by many different

Sometimes referred to as "sleep" or eye matter, eye discharge that appears in normal consistency upon waking is a typical part of your body's defense mechanisms, protecting your eyes from bacteria or other irritants. Eye discharge that appears in abnormal consistency, color, or quantities might be a

The redness associated with “red eye” is usually caused by dilated or swollen blood vessels. As a result, the surface of the eye looks bloodshot. In contrast to vision problems or pain in the eye, red eye is often less of a concern. However, there are times when red eye may be a sign of a more serious

Ptosis (TOE-sis) refers to an upper eyelid that droops and can occur in children or adults. The droop may be hardly visible, or it could cover the entire pupil. Depending on the severity of the droop, it could interfere with vision. People with ptosis may try to lift the eyelids or tilt their heads back

Do you find yourself squinting or closing your eyes in bright light? It could be photophobia or acute light sensitivity. Eyes are designed to respond to light, but certain conditions can create light sensitivity. Exposure to sunlight, fluorescent light, incandescent light and other bright light sources

Many people experience small, dark, cobwebby shapes drifting across their field of vision. These floaters are especially common as people age. Flashes, a similar phenomenon, are quick flickers of light. Both are usually harmless, but, occasionally, can be a sign of serious eye troubles. Causes Vitreous

Few eye issues are as simultaneously subtle and annoying as a twitch that comes on suddenly and/or recurs frequently. A twitching eyelid may not appear visible to the people around you at all, but it can make you feel highly self-conscious and drive you to search for the cause and the cure. Unfortunately,

Eye pain is not normal and should always be checked by your eye care professional. It is especially urgent if the pain comes with any of the following symptoms: The pain is intense and sudden. Your eye is injured or is being irritated by a foreign object. The pain comes with sensitivity to light or

Sometimes your eyes don’t make enough tears or the tears evaporate too fast because they don’t have the right amount of compounds in them. This is called dry eye. Up to 5% of Americans complain of some form of dry eye. Individuals who wear contact lenses or have undergone LASIK or other types of

Loss of eyesight and macular degeneration are typically associated with aging. Stargardt disease, however, an inherited form of macular degeneration, commonly affects children and young adults. Also referred to as Stargardt macular dystrophy (SMD) or flavimaculatus, the term Stargardt disease refers

The term retinitis pigmentosa (RP) refers to a set of degenerative genetic diseases that gradually kill off the light-sensing cells (rods and cones) of the retina, eventually causing blindness. It is a relatively rare genetic disorder, affecting only 1 in 4,000 people. Retinitis pigmentosa can be difficult

You may have heard of macular degeneration, an age-related condition in which people suffer permanent vision loss due to damage in a part of the retina called macula. But you may not be so familiar with a similar macular condition that also causes vision loss -- even in young people. This condition,

If you find yourself experiencing blurred or distorted vision that seems to get worse year after year, you may suffer from an irregularity of the cornea known as keratoconus. This condition is infamous for causing astigmatism and nearsightedness that can progress rapidly, calling for constant updates