Understanding Cataract Surgery: Common Concerns and Artificial Lens Choices
Could you please provide more specific questions regarding cataract surgery and intraocular lenses? Dear Doctor, A few days ago, my father underwent cataract surgery. He had been delaying the surgery for nearly ten years and decided to opt for a better quality intraocular lens (...
Dr. He Jianxian reply Ophthalmology
Hello Mr. Bruce: Essentially, cataract surgery cannot be described as a "very quick and simple" procedure. The actual surgical process may take around ten to twenty minutes, but there are many preparatory steps involved, making the entire process take about 40 minutes t...[Read More] Understanding Cataract Surgery: Common Concerns and Artificial Lens Choices
Understanding Selective Laser Trabeculoplasty for Open-Angle Glaucoma
Issues Related to Laser Treatment for Open-Angle Glaucoma Hello, Doctor: May I ask if the current treatment for open-angle glaucoma in the country primarily uses selective laser trabeculoplasty (SLT), or are there hospitals that still utilize argon laser trabeculoplasty (ALT)? Is...
Dr. He Jianxian reply Ophthalmology
Dear Mr. Dongdong: As I am not engaged in laser trabeculoplasty and have not had practical experience with patients undergoing this type of treatment during my learning process, I am unable to provide appropriate advice regarding this therapy. Dr. He Jianxian, Nantou Hospital[Read More] Understanding Selective Laser Trabeculoplasty for Open-Angle Glaucoma
Understanding Macular Issues: Distorted Vision and Potential Causes
Macular issues Could the distortion of straight lines that disappears after a while be due to macular edema? In mid-January of this year, I noticed a bright spot in my right eye when I blinked at night. Later, I used an Amsler grid and found a small dark spot in the upper right q...
Dr. He Jianxian reply Ophthalmology
Hello Mr. A-Nan: Basically, if you have undergone a dilated fundus examination and OCT without any findings, it is likely that there are no significant lesions. As for why you are experiencing distortion in your visual field despite the absence of lesions, I do not have a suitabl...[Read More] Understanding Macular Issues: Distorted Vision and Potential Causes
Can People with Floaters Engage in Intense Sports Like Judo?
Can people with floaters engage in vigorous exercise? Can individuals with floaters participate in training for activities such as judo or wrestling? Is there a risk of retinal detachment due to excessive impact?
Dr. He Jianxian reply Ophthalmology
Hello James: There is no absolute correlation between floaters and retinal detachment. However, if floaters occur alongside a retinal tear, the tear could potentially lead to retinal detachment. If floaters are present and no abnormalities are found during a dilated retinal exami...[Read More] Can People with Floaters Engage in Intense Sports Like Judo?
Understanding Vitreous Degeneration: When to Seek Medical Attention
Vitreous degeneration I am sneezing, and when I get up, I see many small stars appearing around me, but they quickly disappear. This has happened four times within a month, and I have a history of floaters. I previously had a fundus examination that showed no issues. Do you think...
Dr. He Jianxian reply Ophthalmology
Hello Ms. Chen: It is recommended that you go to the hospital for another dilated eye examination. Dr. He Jianxian at Nantou Hospital.[Read More] Understanding Vitreous Degeneration: When to Seek Medical Attention
Managing Retinal Edema: Is Using an Eye Patch Beneficial?
Retinal edema Hello Doctor: I would like to ask about my left eye's retinal edema. The hospital has diagnosed it and scheduled a follow-up appointment in two weeks to see if it will resolve on its own. However, due to the retinal edema, I experience disparity when looking wi...
Dr. He Jianxian reply Ophthalmology
Dear Andy, Not using your eyes should not speed up your recovery; however, if discomfort arises from the lack of coordination between your two eyes, covering one eye may be a viable solution. Dr. He Jianxian, Nantou Hospital[Read More] Managing Retinal Edema: Is Using an Eye Patch Beneficial?
Can Modern Treatments Improve Vision After Retinal Detachment Surgery?
Post-retinal detachment surgery, concerns regarding vision recovery? Over a decade ago, I underwent surgery for retinal detachment (I have forgotten the specific surgical method, but I know that gas was used for the reattachment). The surgery was likely successful, but my vision ...
Dr. He Jianxian reply Ophthalmology
After such a long time since the surgery, the condition should be stable. If cataracts were not caused by the surgery, the current treatment techniques may have limited effectiveness in achieving significant improvement. This is for your reference. Dr. He Jianxian, Nantou Hospita...[Read More] Can Modern Treatments Improve Vision After Retinal Detachment Surgery?
Understanding Blurry Vision: Causes and Solutions for Eye Health
Blurred vision I apologize, but I would like to ask about my right eye, which feels hazy while the same area in my left eye is clear. I have seen an eye doctor three times, but this issue remains unresolved. Recently, I have been using electronic devices excessively, but I am cur...
Dr. He Jianxian reply Ophthalmology
Hello Mr. Xiao Li: Since I have not thoroughly examined your eye condition, I cannot explain why you are experiencing this situation. Dr. He Jianxian, Nantou Hospital.[Read More] Understanding Blurry Vision: Causes and Solutions for Eye Health
Understanding Glaucoma: OCT Insights, Diagnosis, and Treatment Advances
Glaucoma-related 1. Can OCT directly show optic nerve atrophy, or does it only indicate the size of the optic disc? Does high myopia affect the interpretation? 2. If the OCT values are abnormal but the visual field test is normal, can it still be classified as glaucoma? (The pa...
Dr. He Jianxian reply Ophthalmology
Hello Ms. Ching: 1. OCT (Optical Coherence Tomography) is used to collect population data to establish a database for comparative analysis. However, due to individual variations, there can be significant differences, especially in cases of high myopia where the optic nerve head...[Read More] Understanding Glaucoma: OCT Insights, Diagnosis, and Treatment Advances
Recent Advances in Optic Nerve Stem Cell Research: Success Stories
Optic nerve-related I would like to ask if there have been any successful cases in the research of optic nerve stem cells? (I saw some news about it before, but I'm not sure about the accuracy of the news.)
Dr. He Jianxian reply Ophthalmology
Hello Kathy: The successful cases we have seen before are all from abroad, and there seems to be no clear treatment model available for reference in Taiwan. Dr. He Jianxian, Ophthalmologist, Nantou Hospital.[Read More] Recent Advances in Optic Nerve Stem Cell Research: Success Stories
Seeing Rainbow Halos Around Streetlights: Possible Causes Explained
Seeing a rainbow halo around a streetlight? Last week, I had a visual field test and a fundus examination, both of which were normal. A few days ago, I noticed rainbow halos around streetlights, so I immediately visited an ophthalmologist. My intraocular pressure was normal, and ...
Dr. He Jianxian reply Ophthalmology
Hello Vivi: First, it is important to understand that glaucoma is not possible, as only acute glaucoma can cause such a condition. If you are wearing glasses, dirty lenses or impurities in your tears could also lead to similar issues. Dr. He Jianxian, Ophthalmologist, Nantou Hosp...[Read More] Seeing Rainbow Halos Around Streetlights: Possible Causes Explained
Understanding Eye Fatigue: Symptoms, Causes, and Solutions
Eye fatigue Previously, I noticed that my eyes would sometimes flicker when looking at things, so I visited an ophthalmologist who said there was no issue, just eye fatigue. However, the next day, I felt that sometimes the light would dim, and even with my eyes closed, I would pe...
Dr. He Jianxian reply Ophthalmology
If you experience eye fatigue or dryness that does not improve with lifestyle adjustments, you may consider using artificial tears. However, if you notice a momentary blackout when looking at things, similar to turning off a light bulb, you should be very cautious, as this could ...[Read More] Understanding Eye Fatigue: Symptoms, Causes, and Solutions
Understanding Fixed Black Spots in Vision: Is It Floaters or Something Else?
Fixed black spots that disappear when blinking? Both eyes have high myopia, around 1000 degrees. I have had floaters since high school, and recently I noticed that sometimes my right eye sees a small black dot that is stationary and appears for about two to three seconds. It disa...
Dr. He Jianxian reply Ophthalmology
Floaters typically move, but the spots you described are fixed, making it difficult to confirm whether they are floaters. I recommend undergoing a comprehensive dilated eye exam to check the retina for any abnormalities. If the retina is normal, there is no need for concern.[Read More] Understanding Fixed Black Spots in Vision: Is It Floaters or Something Else?
Understanding Glaucoma: Lifelong Treatment and Prognosis Insights
Eye problems 1. I would like to ask if being diagnosed with glaucoma means that I will need to use eye drops for the rest of my life? 2. Is the prognosis for mild glaucoma good?
Dr. He Jianxian reply Ophthalmology
1. Most people will indeed be on medication for a lifetime. 2. The prognosis for most cases of glaucoma is generally good.[Read More] Understanding Glaucoma: Lifelong Treatment and Prognosis Insights
Can Early Detection of Glaucoma Prevent Vision Loss for Life?
Eye-related I would like to inquire if early detection of glaucoma can allow for lifelong control, meaning that vision loss can be prevented.
Dr. He Jianxian reply Ophthalmology
In an ideal situation, with the help of medication or surgery to control intraocular pressure, the optic nerve theoretically should not undergo degeneration. However, in clinical practice, there are indeed patients whose intraocular pressure is well-controlled, yet their conditio...[Read More] Can Early Detection of Glaucoma Prevent Vision Loss for Life?
Understanding Floaters and Eye Coordination Issues: A Guide for Patients
The central point in the eye appears as a translucent, floating spot? Hello, doctor. I have a disparity in my vision, with my left eye at -2.75 and my right eye at -1.50. Over the past two weeks, I have been experiencing an increased awareness of floaters, which I have had before...
Dr. He Jianxian reply Ophthalmology
The vitreous body is indeed what is referred to as floaters, which are caused by the degeneration of the vitreous humor within the eye. As for your sense of disorientation, I cannot determine the primary cause. I recommend visiting a clinic for further evaluation by a physician.[Read More] Understanding Floaters and Eye Coordination Issues: A Guide for Patients
Understanding Glaucoma: Symptoms, Diagnosis, and Eye Health Concerns
About glaucoma? I found some information about glaucoma online and became worried that I might have it. Previously, I noticed rainbow halos around lights at night. After visiting an ophthalmologist, my intraocular pressure was measured and found to be within the normal range. The...
Dr. He Jianxian reply Ophthalmology
1. An indirect ophthalmoscope can visualize the retina and the optic nerve. 2. The description of glaucoma you mentioned refers to the halo phenomenon seen in acute angle-closure glaucoma with corneal edema. With your -6.00 diopter myopia, it is highly unlikely for you to exper...[Read More] Understanding Glaucoma: Symptoms, Diagnosis, and Eye Health Concerns
Understanding Exotropia: Why You See Moving Black Spots
Exotropia with black spots? The eye exhibits exotropia, but there are black spots that move in conjunction with the eye movement when looking at objects.
Dr. He Jianxian reply Ophthalmology
This is likely "floaters." If you are concerned, you can visit an ophthalmologist for a dilated eye examination. Dr. He Jianxian[Read More] Understanding Exotropia: Why You See Moving Black Spots
Understanding Aspheric Glasses: Are Your New Prescription Issues Normal?
Aspheric glasses inquiry? I would like to ask about my old glasses prescription, which is spherical right +3.75 with astigmatism +1.25 and left +4.00 with astigmatism +1.25. My recent eye exam did not show any changes. However, on February 4th, I received new aspheric glasses wit...
Dr. He Jianxian reply Ophthalmology
New glasses may require some adjustment time due to differences in prescription and astigmatism angle. Dr. Ho Chien-Hsien[Read More] Understanding Aspheric Glasses: Are Your New Prescription Issues Normal?
Understanding Eye White Issues: Yellow Deposits and Laser Surgery in Taichung
Issues with the sclera? Hello, Doctor He. I recently noticed a yellowish spot on the white part of my eye. I visited an ophthalmologist who said it is a pigment deposition. I am very interested in having surgery to remove it for cosmetic reasons. Could you please recommend places...
Dr. He Jianxian reply Ophthalmology
Basically, if the pigmentation occurs on the conjunctiva, it is relatively easy to remove. Most ophthalmology clinics that perform surgeries can handle this. After the procedure, it should not affect future laser surgery for myopia. Dr. He Jianxian[Read More] Understanding Eye White Issues: Yellow Deposits and Laser Surgery in Taichung