Eye care issues?
Hello, Doctor.
I would like to ask a few questions regarding eye care.
I have high myopia (950) and also experience floaters.
If I maintain good intraocular pressure and avoid eye strain, can I reduce the incidence of glaucoma? Is it possible for macular degeneration to occur at my age? A few days ago, I visited a doctor, and my intraocular pressure was 17, with normal optic nerves.
However, yesterday I was exposed to bright light and noticed a shadow resembling floaters in my left eye (blue in color).
What could this situation be? Additionally, when I look at stronger lights (such as car headlights), they appear to radiate, and the light seems elongated, similar to halos.
Is this a sign of eye fatigue? Thank you, Doctor.
Gaozhong, 10~19 year old female. Ask Date: 2016/11/03
Dr. Cai Wenyuan reply Ophthalmology
Hello: Preventing eye strain is beneficial for the eyes and can reduce the occurrence of glaucoma; however, it is still important not to forget regular medical check-ups.
At your age, macular degeneration is not very common.
By paying attention to your daily eye habits and maintaining a balanced diet, you actually do not need to worry too much.
As for the condition you described, as long as you have regular check-ups, it should not pose any significant harm.
Wishing you peace and health.
Sincerely, Dr.
Tsai Wen-Yuan, Chief of Ophthalmology, Taoyuan General Hospital, Ministry of Health and Welfare.
Reply Date: 2016/11/03
More Info
Managing eye health, especially for individuals with high myopia (myopia greater than -6.00 diopters) and floaters, is crucial to prevent complications such as retinal detachment, glaucoma, and macular degeneration. Here are some essential eye care tips and insights regarding your concerns:
1. Understanding High Myopia and Its Risks
High myopia significantly increases the risk of various eye conditions, including retinal detachment, macular degeneration, and glaucoma. The elongation of the eyeball in high myopia can lead to structural changes in the retina, making it more susceptible to tears and detachments. Regular eye examinations, including dilated fundus exams and optical coherence tomography (OCT), are essential for early detection of any changes in the retina or optic nerve.
2. Managing Eye Pressure and Glaucoma Risk
Maintaining normal intraocular pressure (IOP) is vital in reducing the risk of glaucoma. Your reported IOP of 17 mmHg is within the normal range, which is reassuring. However, it’s essential to monitor this regularly, especially since high myopia can predispose individuals to glaucoma. To help manage eye pressure:
- Stay Hydrated: Drink adequate water throughout the day, but avoid excessive fluid intake before bedtime.
- Limit Caffeine: High caffeine intake can temporarily increase IOP.
- Regular Exercise: Engaging in moderate physical activity can help lower IOP.
- Avoid Eye Strain: Follow the 20-20-20 rule: every 20 minutes, look at something 20 feet away for at least 20 seconds.
3. Floaters and Visual Disturbances
Floaters are common in individuals with high myopia and can appear as small spots or strands in your vision. They are usually harmless but can be bothersome. The appearance of new floaters or flashes of light, especially after exposure to bright light, should be evaluated by an eye care professional. This could indicate changes in the vitreous gel or potential retinal issues.
4. Dealing with Light Sensitivity and Halos
Seeing halos or starbursts around lights, particularly at night or in low-light conditions, can be a sign of eye fatigue or could be related to the shape of your cornea. This phenomenon can also occur due to dry eyes or other refractive errors. To alleviate these symptoms:
- Use Artificial Tears: If you experience dryness, lubricating eye drops can help.
- Adjust Lighting: When working or reading, ensure adequate lighting to reduce strain.
- Take Breaks: Regular breaks from screens and bright lights can help reduce fatigue.
5. Preventing Macular Degeneration
While macular degeneration is more common in older adults, individuals with high myopia are at increased risk. To help protect your macula:
- Healthy Diet: Incorporate foods rich in antioxidants, such as leafy greens, fish high in omega-3 fatty acids, and fruits.
- UV Protection: Wear sunglasses that block UV rays when outdoors.
- Regular Eye Exams: Keep up with your eye care appointments to monitor for any early signs of macular degeneration.
6. General Eye Care Tips
- Limit Screen Time: Reduce the amount of time spent on screens and ensure proper ergonomics while using computers.
- Stay Hydrated: Drink plenty of water to maintain overall eye health.
- Quit Smoking: If you smoke, seek help to quit, as smoking increases the risk of eye diseases.
- Manage Systemic Health: Conditions like diabetes and hypertension can affect eye health, so managing these conditions is crucial.
In summary, while high myopia and floaters can pose challenges, proactive management and regular eye care can significantly reduce the risk of serious complications. Always consult with your eye care provider for personalized advice and treatment options tailored to your specific needs.
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