Corneal Abnormalities in Children: A Mother's Concern - Ophthalmology

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Pediatric corneal abnormalities


Hello Doctor: An ophthalmologist recently discovered small bubble-like spots on my 8-year-old son's left cornea.
During an examination of the endothelial cell count, it was found that there are approximately 2300 cells in the left eye and about 3200 cells in the right eye.
The doctor mentioned that it is currently not a concern and that we should check every six months.
I would like to ask if my son's condition could be corneal dystrophy? Is it affecting one eye or both? The doctor at Shin Kong Hospital said that his right eye is normal, but the left eye is weaker.
Please help this extremely anxious mother.
Thank you.

Xiao Zhen, 30~39 year old female. Ask Date: 2013/04/05

Dr. Gao Pilin reply Ophthalmology


Hello: The number of corneal endothelial cells in newborns is approximately 4,000 per square millimeter, but this number decreases with age.
In general, adults under 40 years old should have a normal corneal endothelial cell count ranging from 2,900 to 3,000.
However, many individuals who wear contact lenses for an extended period may experience a rapid decline in endothelial cell count.
As long as the cell count remains above 1,500, there are typically no significant symptoms.
Currently, your son's left eye has a slightly lower count than normal, but there are no symptoms present, and it cannot be determined whether this is due to corneal endothelial dystrophy.
Therefore, there is no need for excessive concern; regular follow-up appointments will suffice.
Thank you for your message.

Reply Date: 2013/04/05

More Info


It's understandable to feel anxious when it comes to your child's health, especially regarding something as sensitive as their vision. Based on your description, your son has been diagnosed with some corneal abnormalities, specifically small bubble-like spots on the left cornea, and a significant difference in the endothelial cell count between his left and right eyes.
Corneal endothelial cells are crucial for maintaining corneal clarity and health. They help pump excess fluid out of the cornea, preventing it from swelling. A normal endothelial cell count in children typically ranges from 2,500 to 3,000 cells per square millimeter. Your son's left eye, with only about 2,300 cells, is indeed on the lower end of the spectrum, which could indicate a potential issue, but it is not necessarily a definitive diagnosis of corneal dystrophy or endothelial dysfunction at this stage.

The presence of small bubbles or "blebs" on the cornea can be indicative of a few different conditions. One possibility is that these are related to a condition known as corneal edema, which occurs when the cornea becomes swollen due to fluid accumulation. This can happen if the endothelial cells are not functioning properly. However, since the ophthalmologist has suggested that there is no immediate concern and has recommended monitoring every six months, it suggests that they do not currently see a need for intervention.

As for your concern about whether this condition could be classified as corneal dystrophy, it is essential to understand that corneal dystrophies are a group of genetic disorders that affect the cornea's structure and function. They can affect one or both eyes, and symptoms can vary widely. The fact that your son's right eye appears normal is a positive sign, but it does not entirely rule out the possibility of a unilateral condition affecting the left eye.

In terms of management, regular follow-ups with the ophthalmologist are crucial. They will monitor the condition and determine if any changes occur that might necessitate treatment. It's also important to observe any symptoms your son may experience, such as changes in vision, discomfort, or sensitivity to light, and report these to the doctor during your visits.

As a concerned mother, it is natural to feel overwhelmed by medical jargon and potential diagnoses. Here are a few steps you can take to better understand and manage your son's condition:
1. Educate Yourself: Research corneal health and related conditions. Understanding the anatomy and function of the cornea can help you feel more empowered.

2. Ask Questions: During your next appointment, don't hesitate to ask the ophthalmologist to clarify any terms or concepts you don't understand. Questions like "What are the implications of the lower endothelial cell count?" or "What specific symptoms should I watch for?" can provide clarity.

3. Keep a Record: Document any changes in your son's vision or eye health. This record can be helpful during follow-up appointments.

4. Seek Support: Connecting with other parents who have children with similar conditions can provide emotional support and practical advice.

5. Stay Positive: While it’s important to be vigilant, try to maintain a positive outlook. Many children with corneal abnormalities lead healthy, active lives with appropriate monitoring and care.

In conclusion, while your son's condition warrants monitoring, it does not appear to be an immediate cause for alarm based on the information provided. Regular check-ups and open communication with your healthcare provider will be key in managing his eye health. Remember, you are not alone in this journey, and seeking support from medical professionals and other parents can make a significant difference.

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