Merck Manuals Breaks Down What Parents Need to Know About Strabismus
02 Nov 2023
Physician shares key differences between strabismus and amblyopia
RAHWAY, N.J., Nov. 2, 2023 /PRNewswire/ -- As children grow and develop, some parents may notice that their eyes begin to point in different directions and become misaligned. This condition is known as strabismus, and it's relatively common. About 3% of children have strabismus.
In a new editorial from MerckManuals.com, Leila M. Khazaeni, MD, Loma Linda University School of Medicine, shares what parents need to know about strabismus and some key differences between the condition and amblyopia.
1. There are several types of strabismus
Strabismus is the medical term for misalignment of the eyes. There are many different types, and most people know the condition by its more informal names like crossed-eyed or wandering eye. Some types are characterized by inward turning of the eye (esotropia or cross-eye) and some by outward turning of the eye (exotropia or walleye). Other types are characterized by upward turning of the eye (hypertropia) or downward turning of the eye (hypotropia).
2. Strabismus can lead to amblyopia, known as lazy eye
There's often confusion between strabismus and amblyopia. All types of strabismus can lead to amblyopia, also known as lazy eye. Amblyopia is a decrease in vision that occurs because the brain ignores the image received from an eye and can be caused by misalignment of the eye. If left untreated, about 50% of children with strabismus have some vision loss due to amblyopia.
3. Strabismus does not go away on its own
If a child is showing signs of misalignment in their eyes, parents may want to wait and see if the condition goes away on its own. The reality is, people do not grow out of strabismus. It will continue to impact an individual's vision until it's treated. Anyone displaying signs of strabismus should be seen by a doctor promptly to determine the right treatment plan and avoid potential vision loss.
4. Strabismus is most often treated with surgery
In most cases, treatment entails outpatient surgery to either weaken or strengthen the eye muscles to align the eyes. In some cases, full-time glasses are recommended. Depending on the severity and progression of the condition, doctors may first work to equalize vision and correct amblyopia that has occurred. This can be achieved through eye patches or drops that strengthen the vision in the weaker eye. These are only treatments for amblyopia (decrease in vision), not strabismus (misalignment).
5. Every child should have regular vision screenings
Children should be examined periodically to measure vision and to detect strabismus starting at a few months of age. Traditional screening methods or photo screenings are both effective.
You can read more about osteoporosis in Dr. Khazaeni editorial on MerckManuals.com.
About The Merck Manuals and MSD Manuals
First published in 1899 as a small reference book for physicians and pharmacists, The Merck Manual grew in size and scope to become one of the world's most widely used comprehensive medical resources for professionals and consumers. As The Manual evolved, it continually expanded the reach and depth of its offerings to reflect the mission of providing the best medical information to a wide cross-section of users, including medical professionals and students, veterinarians and veterinary students, and consumers. In 2015, The Manuals kicked off Global Medical Knowledge 2020, a global initiative with the goal to make the best current medical information accessible by up to three billion professionals and patients around the world by 2020. The Manuals achieved that goal, and today its medical information is available in more than 241 countries and in 13 languages. It's continuing its ambitious mission through outreach, education and creating new reliable medical resources. For access to thousands of medical topics with images, videos and a constantly expanding set of resources, visit MerckManuals.com or MSDManuals.com and connect with us on social media: For Consumers in the U.S. and its territories: Twitter and Facebook. For Professionals in the U.S. and its territories: Twitter and Facebook
About Merck
At Merck, known as MSD outside of the United States and Canada, we are unified around our purpose: We use the power of leading-edge science to save and improve lives around the world. For more than 130 years, we have brought hope to humanity through the development of important medicines and vaccines. We aspire to be the premier research-intensive biopharmaceutical company in the world – and today, we are at the forefront of research to deliver innovative health solutions that advance the prevention and treatment of diseases in people and animals. We foster a diverse and inclusive global workforce and operate responsibly every day to enable a safe, sustainable and healthy future for all people and communities. For more information, visit www.merck.com and connect with us on Twitter, Facebook, Instagram, YouTube and LinkedIn.
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