Understanding Vision Issues After LASIK: When Glasses Don't Help
Unable to fit glasses? A patient who underwent laser surgery for myopia 20 years ago recently experienced difficulty achieving better than 0.8 visual acuity with corrective lenses, despite having a prescription of -1.75 diopters and -0.50 astigmatism. The patient reports that eve...
Dr. Gao Pilin Reply:
Hello, Ah Xiang: Everyone's vision is different; vision is a manifestation of ability and does not have a direct correlation with refractive error measurements. This means that if someone has a visual acuity of 0.8, no matter how they are corrected, the best they can achieve...[Read More] Understanding Vision Issues After LASIK: When Glasses Don't Help
Understanding Black Spots in Vision: Possible Causes and Next Steps
Seeing black spots that disappear when you open your eyes? Dear Doctor, Happy New Year. I have some unusual symptoms, and both the hospital and clinic have been unable to identify the cause. I am concerned that this may be a sign of a serious issue, and I kindly seek your guidanc...
Dr. Gao Pilin Reply:
Hello, Hui: The appearance of arcs of light before falling asleep may be a phenomenon caused by vitreous pulling on the retina. As for symptom one, I cannot determine the cause, but if all examinations show no abnormalities, it is likely not a major issue; sometimes it is just a ...[Read More] Understanding Black Spots in Vision: Possible Causes and Next Steps
Understanding Visual Disturbances: Causes and When to See a Specialist
Visual impairment Hello, doctor. From October to January, I have experienced an episode each month where my eye suddenly shows irregular "colored lightning flashes" resembling a blot or a line. This phenomenon persists in my vision, and at times, I experience visual blu...
Dr. He Jianxian Reply:
Your condition sounds like a visual aura preceding a migraine attack. If it occurs too frequently, you should consider consulting a neurologist. Dr. He Jian-xian from Nantou Hospital's Ophthalmology Department.[Read More] Understanding Visual Disturbances: Causes and When to See a Specialist
Understanding Eye Exams and Managing Dry Eye Symptoms
Fundus examination and dry eye syndrome? Hello, doctor. Thank you for patiently answering my questions several times. I would like to ask you about the eye examination. Is it normal to feel discomfort from the light used by the doctor during the fundus examination (or the light f...
Dr. Gao Pilin Reply:
Hello Su: It is normal to experience such reactions after light therapy, so there is no need to worry. Dry eye syndrome is currently a challenging condition to treat and usually requires long-term use of medication. Using preservative-free artificial tears may be more beneficial,...[Read More] Understanding Eye Exams and Managing Dry Eye Symptoms
Flashes and Shadows: Understanding Eye Symptoms While Lying Down
Seeing flashes of light while lying down? Hello, doctor. I apologize for the interruption. Recently, when I lie down, I sometimes see flashes of light, and sometimes when I close my eyes and then open them, I see a shadow that appears for a moment and then disappears. This only h...
Dr. Gao Pilin Reply:
Hello: This could simply be caused by the vitreous pulling on the retina, which is generally harmless. However, it is still advisable to have an eye examination.[Read More] Flashes and Shadows: Understanding Eye Symptoms While Lying Down
Understanding Post-Vitrectomy Gas Phenomena: Common Questions and Concerns
Postoperative Gas Phenomenon After Vitrectomy Thank you, doctor, for your previous response. Regarding the postoperative gas tamponade (non-silicone oil), when I look out, it appears as if I am seeing a small circular water tank with a horizontal line. The doctor mentioned that t...
Dr. Gao Pilin Reply:
Hello Ms. Wang: 1. The imaging is inverted vertically and reversed horizontally, with gas located at the top, resulting in blurriness at the bottom. Therefore, the horizontal line appears to be descending. 2. Silicone oil is not the same; it is injected into the entire eyeball...[Read More] Understanding Post-Vitrectomy Gas Phenomena: Common Questions and Concerns
Understanding Retinal Vein Occlusion and Its Impact on Eye Health
Vascular obstruction-related issues? Hello Doctor: I recently went for an eye examination and found that I have a retinal vein occlusion in my left eye, which has led to retinal hemorrhage. I am seeing small black spots when looking at things. I am currently waiting for a fundus ...
Dr. Gao Pilin Reply:
Hello Wang: After the fundus photography examination is completed, the physician should arrange the appropriate treatment for you. If erythropoietin is managed properly, it should not cause venous thromboembolism in patients with anemia, so it is unlikely to be significantly rela...[Read More] Understanding Retinal Vein Occlusion and Its Impact on Eye Health
Understanding Eye Health: Addressing Concerns of High Myopia and Floaters
Many issues? Hello Doctor: I am 24 years old and have high myopia in both eyes. Right eye: -9.50, left eye: -6.75 (with astigmatism of 2.00-2.50 in both eyes). I have undergone retinal laser treatment for holes in both eyes twice; the last treatment for my left eye was on Decembe...
Dr. Gao Pilin Reply:
Hello Krystal: 1.2. These are phenomena of vitreous degeneration, which are usually benign and harmless. As long as the retina has been checked and is fine, you can rest assured. 3. It is likely a sensation caused by the rapid pulling of the extraocular tissues. This is considere...[Read More] Understanding Eye Health: Addressing Concerns of High Myopia and Floaters
Understanding Flashing Lights in Vision: Is It a Retinal Issue?
Flashes in the eyes and retinal issues? Hello Doctor, I would like to ask a question. I have high myopia, and recently, about one or two months ago, I started noticing a bright spot in my vision when I focus on something, like my phone. It appears as a transparent white spot that...
Dr. Gao Pilin Reply:
Hello, Tai Tai: This may be a phenomenon of vitreous floaters, also known as floaters. It is recommended that you have an eye examination. Actions such as sneezing, holding your breath, or coughing can cause visual disturbances, often described as "seeing stars," due to...[Read More] Understanding Flashing Lights in Vision: Is It a Retinal Issue?
Understanding Your Eye Prescription: Which Power is Right for You?
Correct prescription? Hello, Doctor. I previously had an eye examination at the hospital where I received three different prescriptions. I'm unsure which one is my correct prescription. At that time, I was too anxious due to my eye pressure issues and forgot to ask the exami...
Dr. Gao Pilin Reply:
Hello Sam: If the prescription is R 725 L 700 and you can see 1.0, then you can use this prescription. If R 750 L 725 is clearer, you can use this one as well. It depends on your needs. The difference of 25 diopters before and after dilation indicates that the change in refractio...[Read More] Understanding Your Eye Prescription: Which Power is Right for You?
Essential Eye Exams for Managing Glare Issues: What You Need to Know
Glare issues I would like to inquire about the tests that can be conducted for issues related to glare in the eyes. Currently, I wear progressive lenses and a wide-brimmed hat, but polarized light and unblocked sunlight still make my eyes very uncomfortable. I am considering gett...
Dr. Liang Ce Reply:
It is recommended that you visit an ophthalmology clinic for an examination by a physician, who will determine if any further tests are necessary. Thank you, and wishing you good health![Read More] Essential Eye Exams for Managing Glare Issues: What You Need to Know
Can Laser Surgery Cause Severe Dry Eyes? Understanding Post-Procedure Symptoms
Retinal tear In September, I paid for a dry eye examination, where my tear production was measured at 17 for the left eye and 7 for the right eye. There was evidence of meibomian gland obstruction, and the lipid layer was approximately 35. The doctor advised me to apply warm comp...
Dr. Gao Pilin Reply:
Hello Mr. Wang: The laser treatment is performed on the retina, so it is unrelated to dry eye. There are treatment options for dry eye syndrome. Please refer to: https://reurl.cc/EZdQ4v and consider consulting the ophthalmology department at a teaching hospital.[Read More] Can Laser Surgery Cause Severe Dry Eyes? Understanding Post-Procedure Symptoms
Understanding Sudden Blurry Vision in Teens: Possible Causes and Solutions
Blurred vision Hello, doctor. I am a high school student. I have maintained a vision of 1.5 since childhood, but recently I have noticed a significant decline in my left eye's vision. Distant objects appear more blurred (I'm not sure if this counts as vision loss). I at...
Dr. Gao Pilin Reply:
Hello Mr. Wu: There are many causes of blurred vision, the most common being refractive errors, such as myopia, hyperopia, or astigmatism. However, there are many other potential causes as well; any part of the eye, all the way to the brain, can contribute to blurred vision. It i...[Read More] Understanding Sudden Blurry Vision in Teens: Possible Causes and Solutions
Understanding Floaters: Concerns About Eye Health and Treatment Options
Floaters I developed floaters at the age of 17, with a prescription of -5.00 diopters. It is likely a degenerative type, but I have some questions: 1. Will my eyes develop abnormalities earlier than usual? 2. I recently had an eye examination, and everything was fine with no tear...
Dr. Gao Pilin Reply:
Hello, 1. Floaters are not necessarily related to retinal degeneration. 2. Flashes may occur due to vitreous pulling on the retina and may have always been present. 3. If the examination shows no issues, there is likely no need for concern. 4. There may not be a need for fur...[Read More] Understanding Floaters: Concerns About Eye Health and Treatment Options
Understanding Floaters: When to Worry and How Often to Check
Floaters are very bothersome to me? Hello Doctor: I started experiencing floaters around the age of 22, and I am now 25. I have been undergoing regular dilated eye examinations, with the last one conducted at the end of July this year, and my retina was still normal. Since I am q...
Dr. Gao Pilin Reply:
Hello, if the examination shows no issues, you can feel at ease. There is no need for frequent check-ups unless there are noticeable changes. Once a year is sufficient. If you are still concerned, it is fine to have another check-up. Generally, intraocular pressure should not be ...[Read More] Understanding Floaters: When to Worry and How Often to Check
Discomfort with New Glasses: Is It a Prescription Issue or Something Else?
The new glasses are not very comfortable to wear? Hello Doctor: I recently got new glasses, and there is a difference of 200 degrees between the old prescription and the new one. I have tested my vision and found that my left eye sees near objects blurry but distant objects clear...
Dr. Gao Pilin Reply:
Hello, regarding myopia: if the prescription is too strong, you may experience blurriness when looking at nearby objects. Conversely, if the prescription is too weak, distant objects may appear blurry. When getting new glasses, the difference in prescription from the old ones can...[Read More] Discomfort with New Glasses: Is It a Prescription Issue or Something Else?
Understanding Flashing Lights in Vision: Causes and Concerns
Dancing spots of light Hello, last night while sitting in a chair looking at my phone, I stood up to watch TV nearby. I noticed several bright spots rapidly moving in my field of vision, and when I looked in their direction, they disappeared. This lasted for a few seconds. This i...
Dr. He Jianxian Reply:
If it disappears on its own, it is advisable to monitor the situation. If it does not reappear in the future, it is recommended not to pay any further attention to it. Dr. Ho Chien-Hsien, Ophthalmology Department, Nantou Hospital.[Read More] Understanding Flashing Lights in Vision: Causes and Concerns
Understanding Double Vision: Causes and Concerns in Eye Health
Double vision issue? Hello, doctor. 1. Today, I suddenly noticed that I see double when looking at things. The text on my phone appears to be significantly overlapping, but text in reality does not. When I look at certain objects, I also see some overlapping, although the exten...
Dr. Gao Pilin Reply:
Hello Mr. Chen: If the double vision occurs when viewing with one eye, it is likely a refractive issue. If it occurs when viewing with both eyes, it may be due to diplopia. The underlying cause will need to be determined after an examination.[Read More] Understanding Double Vision: Causes and Concerns in Eye Health
Understanding Eye Issues: Dryness, Pain, and Blurriness Explained
Eye problems About a month ago, I had an eye examination at school, and everything was fine at that time. However, recently, I think due to excessive phone use without breaks, my eyes have become a bit dry and somewhat painful. I've also noticed that my left eye seems to be ...
Dr. Cai Wenyuan Reply:
Observe the symptoms, and if they persist, seek medical attention.[Read More] Understanding Eye Issues: Dryness, Pain, and Blurriness Explained
Understanding Floaters and Retinal Holes: Expert Insights and Guidance
Regarding floaters and retinal tears? Hello Doctor: A few months ago, I discovered floaters in my vision. During this time, I visited different clinics for dilated eye examinations. Initially, several doctors said there were no tears, until the last one found a tear at the six o&...
Dr. Gao Pilin Reply:
Hello Ms. Chen: 1. I apologize for not being able to see it, so I cannot make a judgment. If you truly cannot decide, I recommend getting an examination at a hospital with a retina department. 2. Sometimes, issues at the peripheral areas are harder to detect, which can lead to s...[Read More] Understanding Floaters and Retinal Holes: Expert Insights and Guidance