Ciliary muscle, Ophthalmology FAQ - Page 8

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Do Children with 1.0 Vision Need Dilating Drops for Eye Health?

With unaided vision of 1.0 in both eyes, is it necessary to use a mydriatic agent to adjust vision? A second-grade student did not pass the vision screening at school (the child said they were not used to the testing method) and was taken to an ophthalmology clinic for a re-exami...


Dr. Hu Yusheng Reply:
Hello! A visual acuity of 1.0 is considered normal, but your refraction results at the clinic indicate a myopia of 100 degrees. If, after cycloplegia (dilation of the ciliary muscle), your myopia measurement returns to zero, it may signify two possibilities: (1) There is pseudomy...

[Read More] Do Children with 1.0 Vision Need Dilating Drops for Eye Health?


Managing High Myopia: Causes, Prevention, and Treatment Options

High myopia Hello Doctor: I am a person with high myopia, and currently, both of my eyes have a prescription of over 1000 degrees. Isn't it true that after reaching a certain age, the increase in prescription typically slows down? However, my prescription has been increasing...


Dr. Hu Yusheng Reply:
Hello, Ms. Jiun! Some patients with high myopia may experience an increase in their myopic degree even after puberty. The use of cycloplegic agents (ciliary muscle relaxants) is one of the control methods that can be considered. Neither soft nor rigid contact lenses can prevent t...

[Read More] Managing High Myopia: Causes, Prevention, and Treatment Options


Understanding Eye Pain: Causes, Symptoms, and When to Seek Help

Eye pain Hello, Dr. Liu: Yesterday, when I woke up, I experienced an inexplicable pain in my forehead. I later realized that whenever I moved my eyes significantly, the pain in my head would become unbearable. This morning, the headache was not as severe, but I still feel pain wh...


Dr. Liu Jingxian Reply:
Hello, Miss: When reading, studying, or working on the computer at close distances, our eyes adjust their focus to see nearby objects clearly. This adjustment is achieved by the contraction of small muscles in the eye known as the ciliary muscles. Prolonged close-up work can lead...

[Read More] Understanding Eye Pain: Causes, Symptoms, and When to Seek Help


Exploring Laser Surgery and Alternatives for High Myopia Treatment

Laser surgery Hello, doctor. My friend has nearly 1000 degrees of myopia and often experiences eye fatigue and temporary blurred vision due to long hours of work and reading. The doctor has suggested that he could consider laser surgery to reduce his vision impairment. I would li...


Dr. Liu Jingxian Reply:
Hello, Miss: When reading, studying, or working on a computer at close distances, our eyes adjust their focus to see nearby objects clearly. This adjustment is achieved through the contraction of small muscles in the eye called the ciliary muscles. Prolonged near work can lead to...

[Read More] Exploring Laser Surgery and Alternatives for High Myopia Treatment


Understanding the Significant Changes in Eye Prescription After Dilation

There is a significant difference in refractive error before and after dilation? Hello Dr. Liu, thank you for your response. Today I went for a routine eye examination. Last September, both of my eyes were at -500 degrees. This time, before dilation, my left eye was -600 and my r...


Dr. Liu Jingxian Reply:
Hello Sir: After using mydriatic eye drops, the ciliary muscle responsible for the "accommodation function" of the eye relaxes. Therefore, the refraction results obtained at this time will be closer to the actual, true refractive error of the eye. Generally, excessive e...

[Read More] Understanding the Significant Changes in Eye Prescription After Dilation


Understanding Dynamic Lens Training for Children's Myopia Correction

Vision correction for children Dear Dr. Liu, Hello, my daughter is 5 years old. In February, she was diagnosed with myopia ranging from 100 to 150 degrees. Later, I found online that an ophthalmologist has invented a dynamic lens vision training method that utilizes intermittent...


Dr. Liu Jingxian Reply:
Hello Sir: Children's accommodative ability is stronger than that of adults. Excessive use of the eyes, especially prolonged near-distance reading, can lead to "ciliary muscle tension" due to over-accommodation. If the ciliary muscle cannot fully relax as a result,...

[Read More] Understanding Dynamic Lens Training for Children's Myopia Correction


Experiencing Dizziness and Blurred Vision: When to See an Eye Doctor?

My condition? When I look straight ahead and then up, I feel dizzy. Even when I return to a normal position, I still feel dizzy. Every time I get up, my vision feels tangled and I can't see clearly ahead, and my head feels very dizzy. Which specialist should I see? Is it an ...


Dr. Liu Jingxian Reply:
Hello, Miss: When there is excessive eye strain, especially from prolonged near work such as extended computer use, it can lead to significant eye fatigue. The ciliary muscles of the eyes may become over-accommodated and tense, resulting in discomfort and even dizziness. If you e...

[Read More] Experiencing Dizziness and Blurred Vision: When to See an Eye Doctor?


Unexpected Increase in Eyeglass Prescription: What to Do Next?

Unexplained increase in prescription strength? Hello Dr. Hu: I previously went to my regular optical store for an eye exam, and the results showed an increase of about 100 degrees in each eye. The staff mentioned that at my age, my prescription should be stabilizing. A year ago, ...


Dr. Hu Yusheng Reply:
Dear Mr. Hsieh, Based on the myopia degree you provided, you have high myopia. Patients with this condition may continue to experience axial elongation even after puberty, leading to an increase in myopic degree. Additionally, you may be experiencing ciliary muscle fatigue due t...

[Read More] Unexpected Increase in Eyeglass Prescription: What to Do Next?


Understanding Amblyopia: Treatment Options and Future Outlook for Young Adults

Amblyopia Hello Dr. Ke, I would like to ask some questions regarding amblyopia. Recently, I discovered that I have a significant amblyopia issue during a medical examination for military service. After wearing glasses, my right eye measures 0.6 and my left eye measures 0.3, wit...


Dr. Ke Meilan Reply:
Hello: Laser refractive surgery can correct refractive errors, but it will not improve best-corrected visual acuity. Even after undergoing laser surgery, your best vision may still be 0.6 and 0.3. Amblyopia is fixed and will not gradually worsen, but it is important to investigat...

[Read More] Understanding Amblyopia: Treatment Options and Future Outlook for Young Adults


Understanding Eye Injuries in Children: Concerns and Treatment Options

Child's eye injury concerns ~ urgent question? Dear Dr. Liu, My daughter (almost five years old) was injured last Friday when a classmate accidentally scratched her eyeball with a textbook (an abrasion was noted during the evening examination). She has been using eye drops ...


Dr. Liu Jingxian Reply:
Hello, Miss: Based on experience, your child's eye scratch is likely a superficial injury, so it should heal without leaving any scars. If the injured area is located along the visual axis, it could significantly affect visual acuity. For the reduction in vision, it is impor...

[Read More] Understanding Eye Injuries in Children: Concerns and Treatment Options


Dealing with Discomfort: Issues with Contact Lens Wear

Issues with Wearing Contact Lenses Dear Dr. Chang, I wear rigid gas permeable contact lenses, but every time I put them on, my eyes often feel itchy. Initially, my vision becomes blurry with each blink, and then it clears up. I usually apply lubricating eye drops, but they only ...


Dr. Zhang Yanrui Reply:
Rigid gas permeable (RGP) contact lenses can shift slightly after blinking, which may cause a few seconds of blurred vision. This movement facilitates tear exchange and allows for better oxygen permeability, which is one reason why RGP lenses have a higher oxygen transmissibility...

[Read More] Dealing with Discomfort: Issues with Contact Lens Wear


Eye Care Tips for Those Using Magnifying Glasses Daily

excuse me? I have to use a magnifying glass with a light for work every day, and by the end of the day, my eyes are red and very tired. I have gradually noticed that I am becoming light-sensitive and experiencing blurriness. Sometimes, when I look at things, they appear blurry wi...


Dr. Zhang Yanrui Reply:
Hello: First, I would like to know your age. If you are over thirty years old and have been working at close distances for extended periods (several hours or more), you may experience symptoms similar to presbyopia, such as difficulty focusing, light sensitivity, and fatigue. The...

[Read More] Eye Care Tips for Those Using Magnifying Glasses Daily


Why My Daughter's Myopia Measurements Keep Changing: A Parent's Concern

The degree of myopia varies with each measurement? Dear Dr. Wang, My daughter originally had myopia of about 200-300 degrees with astigmatism (wearing daily disposable soft contact lenses). On July 27, due to insufficient prescription, she was fitted with a pair of extended wear...


Dr. Wang Yuwei Reply:
Typically, this situation occurs due to the contraction of the ciliary muscle, leading to an increase in refractive error and resulting in blurred vision. The approach to manage this is to use a strong mydriatic agent to determine the true prescription, or to employ certain techn...

[Read More] Why My Daughter's Myopia Measurements Keep Changing: A Parent's Concern


Understanding Astigmatism: Do You Need Glasses at 15?

About Astigmatism 1. From a young age, I have had astigmatism that has gradually worsened. Recently, I noticed that my vision has become unclear, and upon examination, it was found that I have myopia of 50 degrees in both eyes, along with astigmatism of approximately 200 degrees....


Dr. Liu Jingxian Reply:
Hello Mimi: You are currently using a long-acting "cycloplegic agent" (such as Atropine: 0.1%, 0.25%, 0.5%, 1.0%), which can have effects lasting several days, even up to two weeks. It can relieve the tension of the ciliary muscle, allowing for the recovery of pseudomyo...

[Read More] Understanding Astigmatism: Do You Need Glasses at 15?


Effects of Cycloplegic Agents on Children's Myopia Progression

Effects of Mydriatic Agents? Dear Doctor, my child was diagnosed with myopia of 150 degrees on May 21 of this year. After using a cycloplegic agent for one week, the prescription increased to 175 degrees. The clinic physician then increased the concentration of the cycloplegic ag...


Dr. Liu Jingxian Reply:
Hello Sophia: "Pseudomyopia," also known as "accommodative myopia," is a type of myopia caused by the eye's focusing mechanism. Children have a stronger accommodative ability than adults, making them more susceptible to pseudomyopia. If the eyes can be gi...

[Read More] Effects of Cycloplegic Agents on Children's Myopia Progression


Is Your Eye Pressure Too High? Understanding Symptoms and Risks

Is this a sign of elevated intraocular pressure? I've been experiencing a feeling of swelling in my eyes for the past week, and I don't feel like looking at things. However, I sleep more than 8 hours every day. Could this be due to high intraocular pressure? I have high...


Dr. Zhang Yanrui Reply:
It is recommended that you have your intraocular pressure measured by an ophthalmologist. However, given your condition, there is a 99% chance that your eye pressure is normal. Most individuals with genuinely elevated intraocular pressure do not experience any symptoms. However, ...

[Read More] Is Your Eye Pressure Too High? Understanding Symptoms and Risks


Understanding Myopia and Astigmatism: Choosing the Right Prescription

Myopia of 100 diopters and astigmatism of 50 diopters? Hello Dr. Chen, I visited your clinic the other day, and we discussed the possibility of pseudomyopia. You prescribed me medication for improving my eye muscles and dilating drops. However, I have difficulty seeing complex f...


Dr. Chen Xuan Reply:
Hello: I remember you. You mentioned that you have difficulty seeing clearly in class. Wearing corrective lenses can help you see better, but using eye drops can relax your ciliary muscles. Additionally, practicing distance gazing while wearing slightly over-corrected contact len...

[Read More] Understanding Myopia and Astigmatism: Choosing the Right Prescription


Understanding Eye Swelling and Pain: Causes and Treatments Explained

Swollen and painful eyes? The eye pressure is normal, but the eyes are swollen and painful. The doctor said it is due to inflammation of the skin around the eyelashes, which affects tear production. Is that really the case?


Dr. Wang Zhangji Reply:
Hello: There are many reasons for swollen and painful eyes. For example, individuals who frequently use computers or read may experience ciliary muscle fatigue, which can also cause symptoms of swelling and pain. If your intraocular pressure is normal, there is no need to worry t...

[Read More] Understanding Eye Swelling and Pain: Causes and Treatments Explained


Understanding Eye Drops: Are Stinging Sensations Normal?

About eye drops? Is it normal for children to experience a stinging sensation after using "mydriatic eye drops"? Additionally, I also feel a stinging sensation after applying "ophthalmic compound ointment." Is this normal as well? Thank you!


Dr. Liu Jingxian Reply:
Hello, regarding your question, here are the answers: 1. When we look at objects up close, the mechanism of eye accommodation involves the contraction of the ciliary muscle, which makes the lens more convex to increase the eye's refractive power, allowing the image to be ac...

[Read More] Understanding Eye Drops: Are Stinging Sensations Normal?


Understanding Exotropia: Effects on Vision and Potential Solutions

Exotropia and visual blurriness? Doctor, I have exotropia... I would like to know what other effects it might have on my eyes besides seeing double images! Recently, I've been struggling to read, and sometimes I see strange things (like thin black lines), especially right af...


Dr. Liang Ce Reply:
Hello: There is a difference between exotropia and exodeviation. The former, exotropia, is constant, with the eyes being outward all day long, while exodeviation occurs when the eyes drift outward due to fatigue or lack of concentration. Individuals with exotropia typically do no...

[Read More] Understanding Exotropia: Effects on Vision and Potential Solutions


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