Astigmatism, Ophthalmology FAQ

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Why Do I See Yellow Outlines on Text When Using My Phone?

The text on the mobile phone has a yellow outline when viewed through glasses? I went to an ophthalmologist for an eye examination and my prescription is -1.50 diopters for my left eye with -1.25 astigmatism, and -2.25 diopters for my right eye with -0.50 astigmatism. I visited a...


Dr. Gao Pilin Reply:
Hello: Based on the situation you described, the issues you are experiencing may be related to the prescription of your glasses, the quality of the lenses, or visual adaptation. Here are some possible causes and recommendations: 1. Glasses Prescription and Design: If the prescr...

[Read More] Why Do I See Yellow Outlines on Text When Using My Phone?


Understanding Binocular Vision Dysfunction: Symptoms and Solutions

Binocular vision dysfunction When looking at objects within 1 meter, there are no issues. However, beyond 1 meter, when both eyes focus on a single point, the images keep jumping back and forth, and the visuals alternate between the left and right eyes. For instance, when watchin...


Dr. He Jianxian Reply:
Hello Mr. Wei: Your condition is somewhat unusual. Typically, when we focus on a certain distance, the dominant eye does not switch randomly. It is quite strange that you keep switching and have double vision. I recommend that you visit a large hospital to see an ophthalmologist ...

[Read More] Understanding Binocular Vision Dysfunction: Symptoms and Solutions


Understanding Visual Snow: Is Screen Time the Cause?

Perception of noise? Hello, doctor. Recently, I have noticed that when I look at the wall, there are particles that resemble television static moving around. It is not very noticeable most of the time, but it becomes more apparent after reading or using my phone, and it also beco...


Dr. Gao Pilin Reply:
Hello: Based on the symptoms you described, this condition is known as visual snow syndrome. This phenomenon typically manifests as grainy images resembling television static in the visual field. Here are some possible causes and related information: Possible Causes of Visual Sn...

[Read More] Understanding Visual Snow: Is Screen Time the Cause?


Understanding Orthokeratology Lenses: Eye Health Concerns and Benefits

About Orthokeratology Lenses 1. I have noticed that when I wear orthokeratology lenses, I sometimes wake up in the morning with a lot of eye discharge, enough that it obstructs my vision. It feels abnormal, and upon closer inspection, my sclera appears slightly pink. I'm not...


Dr. Gao Pilin Reply:
Hello: 1. Eye discharge and redness: You mentioned that after wearing orthokeratology lenses, you experience a significant amount of eye discharge upon waking, which even affects your vision, and your sclera appears slightly pink. This may be due to prolonged use of the lenses ...

[Read More] Understanding Orthokeratology Lenses: Eye Health Concerns and Benefits


What to Do If Your SMILE Pro Laser Surgery Goes Wrong?

What should I do if the SMILE PRO laser for myopia seems to have been misaligned and affected the upper part of my eyeball? Hello, doctor. Last week, I underwent Smile Pro laser surgery at a clinic. My condition is that the corneal thickness in both eyes is approximately 550 micr...


Dr. Chen Anping Reply:
Hello: Regarding your situation, it is not possible to provide an online diagnosis based solely on text. If you have significant concerns, it is advisable to visit an ophthalmology clinic for an examination, which may give you more peace of mind. The Hualien Hospital of the Minis...

[Read More] What to Do If Your SMILE Pro Laser Surgery Goes Wrong?


Understanding Prescription Differences: A Teen's Guide to Eyewear

Eyeglass prescription issues? Hello, Doctor Gao. I am a 15-year-old teenager with myopia. Due to the need to see the blackboard in class, I went for an eye examination to get glasses. Two weeks ago, I visited a local hospital for an eye exam without dilation. The results from the...


Dr. Gao Pilin Reply:
Hello: Q1: What are the possible reasons for a difference of 50 diopters between the prescription obtained at the hospital and that obtained at the optical store? The difference in prescription may arise from several factors: 1. Testing environment: The refraction environment at...

[Read More] Understanding Prescription Differences: A Teen's Guide to Eyewear


Understanding Visual Distortions: When to Worry About Your Eyesight

Macula? Hello, Doctor. I have personal myopia of 500-600 degrees and astigmatism of 150-200 degrees. I have an undiagnosed test for glaucoma (the doctor said it is caused by high intraocular pressure), but I am on a fixed regimen of eye drops and have follow-up examinations. On A...


Dr. Gao Pilin Reply:
Hello: The situation you mentioned may be related to eye strain, dry eye syndrome, or high myopia. 1. Lines appearing distorted in the Amsler grid test: If you occasionally notice lines not straight while using the Amsler grid test, but they return to normal after blinking, thi...

[Read More] Understanding Visual Distortions: When to Worry About Your Eyesight


Understanding Diplopia and Astigmatism: Causes and Concerns

Diplopic astigmatism I would like to consult Dr. Gao regarding my astigmatism, which was previously measured at 0.50 and did not seem to cause any significant issues. Recently, I have been experiencing double vision. I previously mentioned that there is a faint line next to the b...


Dr. Gao Pilin Reply:
Hello: Regarding your situation, I understand your concerns. Based on your description, your main issues currently are double vision and changes in astigmatism. First, the degree of astigmatism can change over time, especially during periods of eye strain or visual adjustment. An...

[Read More] Understanding Diplopia and Astigmatism: Causes and Concerns


Understanding Vision Issues: Is It Prescription or Eye Condition?

Eyeglasses Issues I recently noticed that with my glasses, my right eye sees distant objects more clearly but has difficulty seeing nearby objects, while my left eye is the opposite. Could this be an issue with the prescription, or could there be some underlying eye condition? Th...


Dr. Gao Pilin Reply:
Hello: Based on the situation you described, there could be several reasons for this phenomenon: 1. Prescription mismatch: Your glasses prescription may not fully match your vision needs. If your right eye sees clearly at a distance but not up close, while the left eye is the opp...

[Read More] Understanding Vision Issues: Is It Prescription or Eye Condition?


Understanding Eye Issues: Green Lights, Floaters, and Visual Distortions

Eye problems Hello, doctor. I have some questions I would like to ask. Sometimes when I move my eyes (not very quickly), I see a "green" light (a patch). As a student, I spend quite a long time using my eyes, so I feel that my floaters have become more pronounced. Is th...


Dr. Gao Pilin Reply:
Hello: 1. Seeing "green" light when moving your eyes: The situation you described may be related to vitreous traction on the retina, which can trigger photopsia, such as flashes of light or seeing green spots during eye movement. If this phenomenon occurs frequently o...

[Read More] Understanding Eye Issues: Green Lights, Floaters, and Visual Distortions


Should You See an Eye Doctor for Increased Astigmatism?

Increased astigmatism? On April 22, the refraction showed that the right eye had astigmatism of 3.25 (axis 180) and the left eye had astigmatism of 2.75. During the follow-up exam, the right eye's astigmatism increased to 4.25 (axis 5) and the left eye's astigmatism was...


Dr. Gao Pilin Reply:
Hello: Changes in astigmatism degree and axis can be caused by various factors, including alterations in corneal shape, fluctuations in intraocular pressure, or other underlying eye health issues. Particularly, if these changes occur in a short period, it is essential to be vigil...

[Read More] Should You See an Eye Doctor for Increased Astigmatism?


Understanding Double Vision: Causes, Control, and When to See an Eye Doctor

Diplopia issues I would like to inquire about a sudden decrease in vision that Dr. Gao mentioned previously. Recently, my right eye has started to become blurry again, and the measurement has returned to the original prescription of -4.75. Over the past couple of days, I noticed ...


Dr. Gao Pilin Reply:
Hello: Regarding your sudden vision loss that has since recovered: Your vision loss may have been caused by a temporary condition such as eye strain, an eye infection, or dry eye syndrome. If your vision has returned to normal and you have no other symptoms, then there may not be...

[Read More] Understanding Double Vision: Causes, Control, and When to See an Eye Doctor


Understanding Diplopia: Is Astigmatism the Cause of Your Visual Disturbances?

Diplopia issue (Sequence 208956) I apologize for the inconvenience, but I would like to ask Dr. Gao if astigmatism issues might only arise when looking at specific objects. I have observed that I can only see a faint line next to a very dark straight line; could this be related t...


Dr. Gao Pilin Reply:
Hello: Astigmatism is a common refractive error that occurs when the curvature of the cornea or lens is uneven, causing light to focus improperly on the retina. It typically affects vision, making objects appear blurry or distorted. This phenomenon is particularly noticeable when...

[Read More] Understanding Diplopia: Is Astigmatism the Cause of Your Visual Disturbances?


Understanding White Light Spots in Vision: Causes and Concerns

White streaks or spots of light appearing in the vision? Hello, doctor. I have high myopia (1000-1050) and astigmatism of 150 degrees. Recently, I noticed the presence of floaters, but they haven't significantly affected my daily life. However, I have experienced symptoms re...


Dr. Gao Pilin Reply:
Hello: Based on your description, the visual phenomena you mentioned involve floaters, flashes, and possibly visual snow. Firstly, floaters are typically caused by opacities in the vitreous humor projecting onto the retina; these floating objects can be transparent or semi-transp...

[Read More] Understanding White Light Spots in Vision: Causes and Concerns


Understanding Zigzag Light Patterns in Vision: Causes and Insights

Sawtooth light? Hello, Doctor Gao. I have noticed a curved, serrated bright line on the right side of my vision. I use the term "bright line" because it does not flicker. When I close my eyes and rest, the symptoms disappear within ten minutes, and I do not experience a...


Dr. Gao Pilin Reply:
Hello: Based on the symptoms you described, the appearance of arc-shaped, serrated bright lines in your right visual field may be related to issues with the eyes or the nervous system. Here are some possible factors and recommendations: Possible Factors: 1. Eye Problems: Abnorma...

[Read More] Understanding Zigzag Light Patterns in Vision: Causes and Insights


Understanding Blurry Vision with Soft Contact Lenses: A Guide for High Myopia

One eye is blurry with soft contact lenses? Hello Doctor: I have high myopia (the most recent measurement was two weeks ago: left eye approximately -1200 diopters with astigmatism of -175; right eye approximately -1075 diopters with astigmatism of -175). However, each time I have...


Dr. Gao Pilin Reply:
Hello: Based on the situation you described, there are several possible reasons that could explain your vision fluctuations: 1. Inconsistent prescription between glasses and contact lenses: You mentioned that the prescriptions for your glasses and contact lenses differ, which ma...

[Read More] Understanding Blurry Vision with Soft Contact Lenses: A Guide for High Myopia


Understanding Floaters: Concerns and Eye Health Tips for Young Adults

The issue of floaters? Hello, Doctor. I would like to ask you some questions. I have been experiencing floaters for nearly three years now, but I feel that the number of floaters has increased recently. I wonder if this is due to my increased screen time and staying up late. Over...


Dr. Gao Pilin Reply:
Hello: Floaters are quite common in clinical practice, especially among individuals with myopia. Floaters typically occur due to the degeneration or liquefaction of the vitreous, resulting in tiny particles that affect the transmission of light within the eye, leading to shadows ...

[Read More] Understanding Floaters: Concerns and Eye Health Tips for Young Adults


Understanding Blurry Vision: Causes and Solutions for Myopia and Astigmatism

Blurred vision Hello, Doctor. I would like to inquire about my condition. I have myopia of -4.75 and astigmatism of -0.50 / -3.50. My vision in both eyes became blurry around January, and after an eye exam, my prescription increased. However, I later underwent other tests, includ...


Dr. Gao Pilin Reply:
Hello: Based on the detailed information you provided, the fluctuations in vision in your right eye may be caused by various factors. Here are several possible reasons and recommendations: 1. Eye Strain: Prolonged use of mobile phones and electronic devices can lead to eye fatig...

[Read More] Understanding Blurry Vision: Causes and Solutions for Myopia and Astigmatism


Understanding Blurry Vision: Causes and Concerns for Eye Health

Blurred vision (Sequence 208650) I'm sorry, Dr. Gao. If the reasons you mentioned could be ambiguous, could there be a possibility that the left eye's vision has decreased while astigmatism has appeared, and the right eye's vision has increased, all occurring withi...


Dr. Gao Pilin Reply:
Hello: Based on your description, the changes in your vision and the onset of astigmatism may be the result of multiple factors. Here are several possibilities: 1. **Vision Fluctuations**: Short-term fluctuations in vision may be caused by eye strain, dry eye syndrome, or irreg...

[Read More] Understanding Blurry Vision: Causes and Concerns for Eye Health


Understanding Vision Changes: My Experience with New Glasses and Eye Strain

Prescription lens issues and visual problems? Hello, Doctor. Recently, I have been experiencing blurred vision when looking at close objects (text). When I look at light sources (both sunlight and artificial light, day or night), I notice some halos and glare (but not colored; th...


Dr. Liang Ce Reply:
We recommend you seek medical consultation. Wishing you good health. Thank you!

[Read More] Understanding Vision Changes: My Experience with New Glasses and Eye Strain


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