Contact lenses, Ophthalmology FAQ - Page 25

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Post-Strabismus Surgery: Can You Wear Contacts and Care for Your Eyes?

One year after strabismus surgery? 1. Can I wear colored contact lenses? I've heard that wearing them can worsen strabismus. 2. How can I take care of my eyes to prevent them from becoming loose or reverting back to strabismus? Is it related to individual constitution? Wha...


Dr. Gao Pilin Reply:
Hello: 1. Yes, colored contact lenses are a type of contact lens and do not increase strabismus. However, unlike regular glasses, they do not have the same effect on the focal distance of the pupil, making it more challenging to achieve proper alignment. 2. Strabismus is caus...

[Read More] Post-Strabismus Surgery: Can You Wear Contacts and Care for Your Eyes?


Understanding Keratoconus: When to Consider Rigid Contact Lenses

Keratoconus..? Hello Doctor: I previously asked about keratoconus. I currently have astigmatism of nearly 600 degrees, and after being diagnosed with keratoconus, my doctor has only advised me to wear glasses and has not prescribed rigid gas permeable contact lenses. Does this me...


Dr. Zhuang Yamin Reply:
Hello: The purpose of wearing rigid gas permeable (RGP) contact lenses is not to compress the cornea, but rather to improve the corneal shape for better visual acuity. Initially, mild astigmatism can indeed be corrected with regular glasses or soft contact lenses, but high astigm...

[Read More] Understanding Keratoconus: When to Consider Rigid Contact Lenses


Understanding Myopia, Astigmatism, and Strabismus: Your Questions Answered

Myopia, astigmatism, and strabismus? Hello, doctor: "I'm afraid it still cannot decrease by 100 degrees." Does this mean it is completely impossible to decrease, or is it just "very difficult"? I don't want laser treatment... Is it not possible to de...


Dr. Zhuang Yamin Reply:
Hello: Regarding myopia, the part that has potential for improvement is what is known as "pseudomyopia." Even in adulthood, prolonged near work can still lead to the development of pseudomyopia. To determine the extent of pseudomyopia, it is necessary to perform a dilat...

[Read More] Understanding Myopia, Astigmatism, and Strabismus: Your Questions Answered


Managing Keratoconus: Tips for Eye Care and Prevention

Eye problems~~~~~ Hello Doctor: I was diagnosed with astigmatism at over 200 degrees when I was 20 years old, which progressed to over 400 degrees four years later. Now at 27, it has reached nearly 600 degrees, and I have been diagnosed with keratoconus. I would like to ask the d...


Dr. Zhuang Yamin Reply:
Hello: The primary treatment for keratoconus involves wearing rigid gas permeable contact lenses, which not only improve vision but also help prevent further corneal protrusion. Additionally, some literature suggests that taking "fish oil" may enhance corneal strength a...

[Read More] Managing Keratoconus: Tips for Eye Care and Prevention


Managing Anisometropia and Astigmatism: Laser Correction Options

Anisometropia with astigmatism? Hello Doctor: I believe my vision problems stem from poor reading posture during childhood, and I have not corrected this issue for over ten years. I have a significant anisometropia of 300 degrees. I visited an ophthalmologist for an examination t...


Dr. Gao Pilin Reply:
Hello Kelly: For individuals with a disparity of more than 300 diopters between the two eyes, it is generally more challenging to fit glasses, and even with proper fitting, discomfort can occur. There are two solutions: one is to wear contact lenses, and the other is laser correc...

[Read More] Managing Anisometropia and Astigmatism: Laser Correction Options


Understanding Marginal Corneal Ulcers: Symptoms and Treatment Options

Marginal corneal ulcer Hello, Doctor Gao: I experience intermittent episodes of eye discomfort on both sides, sometimes affecting all three areas at once. During the onset, my eyes feel sharp pain and redness, accompanied by a white halo. After two to three days, the redness grad...


Dr. Gao Pilin Reply:
Dear Mrs. Chen, If your symptoms are indicative of marginal keratitis (ulcer), it is primarily due to an immune allergic reaction to staphylococcal toxins. When medication is necessary, the main treatments are antibiotics and corticosteroids. To prevent recurrence, it is essenti...

[Read More] Understanding Marginal Corneal Ulcers: Symptoms and Treatment Options


Choosing the Right Contact Lenses: Tips for First-Time Users

Contact lenses Hello, doctor. I would like to ask how to determine which type of contact lenses is suitable for my eyes. I usually wear glasses, and when I wear contact lenses, I sometimes feel like they might fall out when I look down to write or read. I'm not sure if it&#x...


Dr. Zhuang Yamin Reply:
Hello: May I ask whether you are wearing "soft" or "hard" contact lenses? Generally, soft contact lenses conform to the surface of the cornea, so they are less affected by the size and curvature of the eyeball, which should reduce the likelihood of the issues ...

[Read More] Choosing the Right Contact Lenses: Tips for First-Time Users


Understanding Black Spots and Pinguecula in Your Eyes: Expert Insights

Regarding eye black spots and conjunctival yellow spots? Dear Doctor, My name is Ah Xiang, and I am 32 years old. I have the following questions: 1. I have a small black spot on the sclera of my right eye, which was caused by accidentally scratching it with my finger while wear...


Dr. Wang Zhangji Reply:
If the small black spot is only on the conjunctival layer, there is a chance for surgical removal, and some clinics can perform this procedure. Conjunctival macules, also known as pingueculae, are not easily resolved and may continue to enlarge. Regularly wearing sunglasses may h...

[Read More] Understanding Black Spots and Pinguecula in Your Eyes: Expert Insights


Post-Retinal Laser Surgery: Essential Care Tips for Eye Health

Post-operative Care Instructions After Retinal Laser Treatment Hello: In January, I underwent laser surgery on my left eye due to a retinal tear and high myopia with retinal thinning. After a follow-up in mid-February, my condition has stabilized. Additionally, I found out that m...


Dr. Wang Zhishun Reply:
1. The post-laser surgery condition and vitreous degeneration are unrelated to the use of contact lenses. 2. It has been over a month, so you should be able to wear goggles for swimming. 3. After more than a month, activities like hula hooping or using a treadmill should be p...

[Read More] Post-Retinal Laser Surgery: Essential Care Tips for Eye Health


Can Contact Lens Moisturizing Drops Help Dry Eye Patients?

Artificial tears for dry eye syndrome? Hello, Doctor Gao: I have dry eye syndrome. Recently, when I bought artificial tears, I accidentally purchased contact lens moisturizing solution. I would like to ask if, besides using it while wearing contact lenses, can patients with dry e...


Dr. Gao Pilin Reply:
Hello, Flowers: Contact lens wetting solutions can be used while wearing contact lenses, and of course, they can also be used when not wearing them. However, the effectiveness may not be as good as that of specialized artificial tears, as some ingredients may cause degradation of...

[Read More] Can Contact Lens Moisturizing Drops Help Dry Eye Patients?


Are Implantable Contact Lenses Available for High Astigmatism in Taiwan?

Astigmatism Hello, may I ask if there are currently any implantable contact lenses available in the country for patients with astigmatism over 2.00 diopters? Thank you for your assistance.


Dr. Wang Zhangji Reply:
Yes, but there are certain requirements regarding the degree of myopia. It is recommended to consult with a physician who performs this surgery for further information.

[Read More] Are Implantable Contact Lenses Available for High Astigmatism in Taiwan?


How Long Should Eye Drops Be Used During an Eye Exam?

How long does it take for eye drops to take effect during a routine eye examination? (Forwarded from the Minister's mailbox) Hello, I went to the ophthalmologist at Zhong Eye Clinic on Yumin Road in Tucheng District, New Taipei City, for my first eye exam because I wanted to...


Dr. He Jianxian Reply:
Hello: Generally, stricter requirements for refraction should involve the use of a long-acting cycloplegic agent administered for three consecutive days. I hope this information is helpful. Wishing you good health.

[Read More] How Long Should Eye Drops Be Used During an Eye Exam?


Challenges After Cataract Surgery: When Artificial Lenses Fall Short

The artificial lens has been replaced, but the results are unsatisfactory? Hello, Director Gao. I underwent cataract surgery on my right eye at Cheng Kung University Hospital in 2010, where a variable focus intraocular lens, AMO (ZM900 +11.0D +4D) Foldable Intraocular Lens, was i...


Dr. Gao Pilin Reply:
Hello: Based on your situation, it seems you can see well up close but have difficulty seeing far away. This may indicate that the prescription for your right eye has shifted further towards myopia, as you already have high myopia, and your prescription can still change. If you g...

[Read More] Challenges After Cataract Surgery: When Artificial Lenses Fall Short


Will My Eye White Heal After Prolonged Redness and Swelling?

Will the white part of the eye bulge improve? Previously, my sclera was red, and after seeing a doctor, I discovered there were some holes in the sclera. It was determined to be due to wearing contact lenses and mascara causing abrasion. I was prescribed eye drops and ointment fo...


Dr. He Jianxian Reply:
Hello: Such a description does not allow for a determination of what the protrusion on your sclera is. It is recommended that you visit a hospital for evaluation. Wishing you good health.

[Read More] Will My Eye White Heal After Prolonged Redness and Swelling?


Post-Corneal Repair: Addressing Vision Issues and Emotional Support

Corneal suture healing? Hello Doctor: I would like to ask about a patient who sustained an eye injury from being struck by a ball, resulting in a corneal rupture that was sutured at the upper edge, not centrally on the pupil. Currently, two months post-surgery, the best-corrected...


Dr. Wang Yuwei Reply:
You are fortunate that the corneal center was not affected, allowing you to maintain good corrected vision. Whether hard contact lenses are suitable for you should be determined based on the extent of wound healing and the health of the corneal epithelium. Mydriatic agents may ca...

[Read More] Post-Corneal Repair: Addressing Vision Issues and Emotional Support


Understanding Keratoconus: Symptoms, Diagnosis, and Management Options

Keratoconus Hello, doctor. I am 20 years old and have had astigmatism and myopia since I was 7. In December 2012, I suffered a left eye contusion due to a car accident, which resulted in a laceration and bleeding of the eyelid. After suturing and a month of recovery, I thought th...


Dr. Gao Pilin Reply:
Dear Student Ma, 1. Keratoconus, although not very common, is not classified as a rare disease. 2. The initial symptoms of keratoconus include deteriorating vision and increased astigmatism, which can sometimes be mistaken for severe astigmatism. Therefore, high levels of astigm...

[Read More] Understanding Keratoconus: Symptoms, Diagnosis, and Management Options


Managing Anisometropia: Tips for High Myopia and Vision Discrepancies

Regarding parallax? Hello, Doctor Gao: I am highly myopic (left: -10.50, right: -13.00) and have binocular disparity. I usually wear rigid gas permeable contact lenses at work, which are properly prescribed. However, after work, I wear glasses (prescription: left -9.00, right -11...


Dr. Gao Pilin Reply:
Hello: When exercising and looking into the distance, the binocular disparity will not decrease. This is because the higher degree of myopia will not lessen. Covering the left eye and forcing the right eye to look far away will not change the disparity either. The difference in p...

[Read More] Managing Anisometropia: Tips for High Myopia and Vision Discrepancies


Understanding Laser Surgery for Myopia and Presbyopia: What to Expect

Regarding laser surgery for myopia and presbyopia? Hello Dr. Chuang: Recently, I heard a radio advertisement about laser surgery for myopia and presbyopia. Myopia can be corrected with laser treatment, but presbyopia tends to change with age, requiring different prescriptions for...


Dr. Zhuang Yamin Reply:
Dear Ya-Ya, Currently, the laser surgery for myopia and presbyopia typically involves correcting one eye for distance vision and the other eye for near vision. This way, when both eyes are open, one can see near and the other can see far, allowing for both distances to be percei...

[Read More] Understanding Laser Surgery for Myopia and Presbyopia: What to Expect


Persistent Dry Eyes: When to Seek Further Medical Advice?

Dry eyes Hello, doctor. For the past three to four months, my eyes have felt dry, and the dryness is more pronounced in the morning and evening. I visited a doctor twice a month ago, and I have finished the eye drops, but there hasn't been any significant improvement. At tha...


Dr. Zhuang Yamin Reply:
Dear Tang Tang, Hello! Dry eyes are indeed a bothersome condition! Although it does not cause immediate damage to vision, it can be extremely uncomfortable. The incidence of dry eye syndrome is notably high among individuals who wear contact lenses for extended periods. Taking a...

[Read More] Persistent Dry Eyes: When to Seek Further Medical Advice?


Understanding Variations in Corneal Endothelial Cell Counts: What You Need to Know

Corneal endothelial cell count Hello Doctor: Two weeks ago, I went to the hospital to measure my corneal endothelial cell count. The left eye had 2,358 cells, and the right eye had 3,025 cells (the report was in color). I was a bit concerned about the left eye, so today I went to...


Dr. Gao Pilin Reply:
The number of corneal endothelial cells in newborn infants 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 cells. However, many ...

[Read More] Understanding Variations in Corneal Endothelial Cell Counts: What You Need to Know


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