Understanding Visual Flicker and Vibration Sensations in Myopia
Visual flickering, vibration sensation? Hello Doctor: I have high myopia and a few months ago I discovered floaters, and recently I've been experiencing flashes. I have visited clinics multiple times, but no issues were found; they suggested it might be a process of posterio...
Dr. Gao Pilin Reply:
Hello: Here are the possible reasons: 1. Posterior Vitreous Detachment: Your doctor mentioned that you may be experiencing posterior vitreous detachment. This can lead to symptoms such as floaters and occasional flashes of light. 2. Visual Disturbance: This sensation is not commo...[Read More] Understanding Visual Flicker and Vibration Sensations in Myopia
Understanding Vitreous Liquefaction and Nystagmus: Key Concerns to Watch For
Vitreous liquefaction and nystagmus? In addition to floaters and the appearance of water ripples in the peripheral vision, are there any other conditions related to vitreous liquefaction that I should be aware of? Also, is nystagmus something that can occur in anyone? I've n...
Dr. Gao Pilin Reply:
Hello: Vitreous liquefaction often leads to symptoms such as floaters and visual disturbances like water ripples in the corner of the eye. However, there are other conditions that may require attention: 1. Sudden appearance of flashes or flash sensations: The sudden onset of flas...[Read More] Understanding Vitreous Liquefaction and Nystagmus: Key Concerns to Watch For
Understanding Visual Disturbances: When to Seek Eye Care and Testing
Feeling a blur around the eyes, but it seems like I can still see clearly & questions about eye health check-up? Hello, Dr. Gao: Recently, I have occasionally experienced visual disturbances, such as seeing slight tremors in certain areas or noticing some noise or a faint mo...
Dr. Gao Pilin Reply:
Hello: (1) For patients with high myopia, regular ophthalmic examinations are very important. It is generally recommended to have a comprehensive eye exam at least once a year to ensure your visual health. (2) The health check items you mentioned already include many important op...[Read More] Understanding Visual Disturbances: When to Seek Eye Care and Testing
Why Do I Feel Movement When I Close My Eyes? Eye Health Explained
Seeing flashes of light when your eyes are closed? Hello, doctor. Every time I close my eyes, I feel like something is moving, but it doesn't feel like flashing light. It feels more like a broken light bulb.
Dr. Gao Pilin Reply:
Hello: The possible reasons are as follows: 1. Eye fatigue: Prolonged use of the eyes, extended reading, or intense concentration can lead to eye fatigue, resulting in a sensation of movement. 2. Nystagmus: Under normal circumstances, the eyes exhibit subtle movements known as ny...[Read More] Why Do I Feel Movement When I Close My Eyes? Eye Health Explained
Understanding Retinopathy of Prematurity: Symptoms and Concerns Explained
Retinopathy of Prematurity (ROP) 1. I have retinopathy of prematurity, amblyopia (one eye 0.3, one eye no light perception), high myopia (over 500 degrees), high astigmatism, nystagmus, and visual field loss. For the past few months, I have been experiencing curved yellow-green f...
Dr. He Jianxian Reply:
1. I cannot understand your description; please consult directly at the ophthalmology outpatient clinic. 2. The visual condition associated with nystagmus is different from that of the general population; what you are seeing may indeed be caused by the nystagmus, but I cannot be...[Read More] Understanding Retinopathy of Prematurity: Symptoms and Concerns Explained
Understanding Nystagmus: Eye Examination Insights and Vision Impact
Nystagmus Hello, when a physician examines a patient with nystagmus using an ophthalmoscope and slit lamp, will the images seen by the physician be affected by the movements of the nystagmus? Additionally, does the severity of nystagmus correlate with worse visual acuity?
Dr. Gao Pilin Reply:
Hello: When physicians use an ophthalmoscope or slit lamp for eye examinations, they typically observe a stationary image of the eye. If the patient has nystagmus, the image seen by the physician will appear to be oscillating. Therefore, even slight oscillations become very prono...[Read More] Understanding Nystagmus: Eye Examination Insights and Vision Impact
Experiencing Visual Disturbances After COVID-19 Recovery: What to Know
Objects appear to be slightly shaking? Hello Doctor, I recently tested positive for COVID-19 and after recovering for a week, I started to experience slight lateral movement in my vision, making it difficult to focus, especially when looking at screens. My symptoms are not episod...
Dr. Gao Pilin Reply:
Hello: 1. There is a possibility, but further examination and evaluation are needed to confirm. If you have experienced head trauma, a stroke, or brain surgery, it could potentially lead to nerve damage or sequelae that may affect the visual system. However, it cannot be determin...[Read More] Experiencing Visual Disturbances After COVID-19 Recovery: What to Know
Understanding Sudden Eye Movements: Causes and When to Seek Treatment
Sudden uncontrolled eye movement? Hello Doctor: Sometimes my eyes move uncontrollably back and forth rapidly, occurring about two to three times a month, each episode lasting approximately 0.2 seconds. It does not significantly affect my vision. Should I seek treatment for this?
Dr. Gao Pilin Reply:
Hello: The symptoms you described may be indicative of nystagmus. Nystagmus refers to the involuntary, rapid movement of the eyes, which can be horizontal, vertical, or rotational, and may be continuous or intermittent. Nystagmus can be transient and harmless, or it may be chroni...[Read More] Understanding Sudden Eye Movements: Causes and When to Seek Treatment
Understanding Retinopathy of Prematurity: Impacts on Vision and Eye Health
Retinopathy of Prematurity (ROP) Hello, doctor. I have retinopathy of prematurity, with high myopia and high astigmatism in my right eye, and my best-corrected visual acuity is 0.3. My peripheral vision is relatively narrow in all directions, and there is a central vision defect ...
Dr. He Jianxian Reply:
Hello Ms. Hsin: 1. This laser treatment is performed to prevent retinal abnormalities due to abnormal vascular proliferation, which may cause peripheral vision abnormalities. 2. Blood vessels are typically pulled straighter rather than becoming more curved. 3. Congenital nyst...[Read More] Understanding Retinopathy of Prematurity: Impacts on Vision and Eye Health
Understanding Nystagmus: Causes, Effects, and Treatment Options
Nystagmus Recently, I noticed that one of my eyes suddenly rotates counterclockwise. After researching online, I found that it could be a case of nystagmus, which may be caused by issues in the nervous system, side effects of medications, or problems with the inner ear. I happen ...
Dr. Gao Pilin Reply:
Hello: 1. It could be nystagmus. 2. It is possible. 3. If there is no impact on vision, there shouldn't be significant effects otherwise. 4. Please first visit a psychiatry department for an evaluation to see if medication adjustments are necessary. If there is still no impr...[Read More] Understanding Nystagmus: Causes, Effects, and Treatment Options
Understanding Retinopathy of Prematurity: Impact on Vision and Key Concerns
Retinopathy Hello, thank you for your previous response. I would like to ask if retinopathy of prematurity (ROP) can affect not only peripheral vision but also the central 30 degrees of vision. Is a 30-degree visual field loss of 18.14 dB in one eye considered mild? With retinopa...
Dr. He Jianxian Reply:
Severe retinal disease can indeed lead to a loss of vision within a 30-degree field, and an average value of 18.14 dB is considered moderately severe. If the condition has caused congenital nystagmus and the best-corrected visual acuity is only 0.3 with no light perception, it is...[Read More] Understanding Retinopathy of Prematurity: Impact on Vision and Key Concerns
Understanding Eye Movement Issues Linked to Smoking: A Guide
Smoking causes involuntary upward eye movement? Smoking can lead to various eye issues, including a condition known as nystagmus, which is characterized by involuntary eye movements, such as the eyes drifting upward. This can be caused by several factors related to smoking, inclu...
Dr. Cai Wenyuan Reply:
Observe the symptoms, and if they persist, seek medical evaluation.[Read More] Understanding Eye Movement Issues Linked to Smoking: A Guide
Understanding Retinopathy of Prematurity: Vision Loss and Eye Movement Issues
Vision problems Hello, I would like to ask some questions. Can retinopathy of prematurity cause a 30-degree visual field loss with -18.14 dB? When the eyes are not turned inward, there seems to be a section on the inner side where I cannot see well; moving objects seem to disappe...
Dr. He Jianxian Reply:
Retinopathy of prematurity (ROP) is a condition caused by the use of high concentrations of oxygen in premature infants, leading to retinal proliferation and traction. Generally, it does not cause nystagmus unless the condition is severe and associated with visual impairment. Nys...[Read More] Understanding Retinopathy of Prematurity: Vision Loss and Eye Movement Issues
Understanding the Progression and Sensitivity of Visual Field Loss
Visual field defect Hello, may I ask about the process of decreased sensitivity in visual field defects? Does it progress from a state of blurriness or haziness, or a feeling of dimness where static objects can still be perceived, to a point where only moving objects can be detec...
Dr. Gao Pilin Reply:
Hello, Xin: I recommend that you visit an ophthalmologist for an examination and discuss your concerns directly with the doctor. Your issues require a thorough evaluation to be accurately determined, and answers cannot be provided in a short timeframe. Responding here may only le...[Read More] Understanding the Progression and Sensitivity of Visual Field Loss
Understanding High Myopia, Astigmatism, and Visual Field Defects in Ophthalmology
Visual field concerns? What are the definitions for high myopia, high astigmatism, and high hyperopia in terms of diopter measurements? It seems that different websites provide varying definitions. Is the physiological blind spot located on the nasal side of the retina, meaning t...
Dr. Gao Pilin Reply:
Hello, Xin: Since the degree is a numerical value, it can have various different values. The term "height" refers to a large value, so its definition can vary. There is no need to be overly strict about the terminology, but it can all be referenced. The physiological bl...[Read More] Understanding High Myopia, Astigmatism, and Visual Field Defects in Ophthalmology
Understanding Nystagmus: Symptoms, Challenges, and Visual Impacts
Nystagmus Hello, may I ask if nystagmus can also have a large amplitude and high frequency? Does a larger amplitude make the appearance more noticeable, or is it the high frequency? Is it true that not every person with congenital nystagmus experiences oscillopsia? Furthermore, d...
Dr. Gao Pilin Reply:
Hello, Xin: The amplitude of nystagmus can vary, with some being large and others small, and the speed can also range from fast to slow. Naturally, larger amplitudes are easier to detect. The frequency is not always consistent; sometimes it is very fast, and if one does not pay c...[Read More] Understanding Nystagmus: Symptoms, Challenges, and Visual Impacts
Understanding Nystagmus: Frequency vs Amplitude in Eye Stability
Nystagmus Hello, could you please tell me whether the frequency or the amplitude of nystagmus has a greater impact on image stability and clarity? Does a higher frequency mean that the eye movement speed is faster? Additionally, if both the amplitude and frequency are high, do th...
Dr. Gao Pilin Reply:
Hello, Xin: Both frequency and amplitude have an impact, but sometimes a fast frequency with a small amplitude has a lesser effect, while a large amplitude has a significant impact. A higher frequency means the eyeball moves back and forth more quickly. The form of the tremor and...[Read More] Understanding Nystagmus: Frequency vs Amplitude in Eye Stability
Understanding Nystagmus: Can You Wear Contact Lenses?
Eye problems Hello, there is a saying that if someone has nystagmus, it is considered more serious, and they should not wear orthokeratology lenses or contact lenses. Could you explain the reason for this restriction? When looking at brighter objects, I feel that the surroundings...
Dr. Gao Pilin Reply:
Hello, Xin: It is possible that the movement during tremors may cause image instability or corneal abrasion. This is likely a normal physiological phenomenon; exposure to bright light can cause the periphery to appear darker. The flickering, differently shaped color patches may b...[Read More] Understanding Nystagmus: Can You Wear Contact Lenses?
Understanding Eye Atrophy: Symptoms, Causes, and Related Conditions
Ocular degeneration Hello, could you please explain what conditions may arise from ocular atrophy? It seems difficult to find relevant information. Does ocular atrophy progress over time, or is it possible for the condition to remain stable? Can ocular atrophy lead to high hypero...
Dr. Gao Pilin Reply:
Hello, Xin: Atrophy of the eyeball may be due to degeneration of the retinal nerves or retinal blood vessels. This can lead to shrinkage of the eyeball, which is sometimes unavoidable. When the eyeball shrinks, blindness is likely to occur. Poor vision may result in strabismus or...[Read More] Understanding Eye Atrophy: Symptoms, Causes, and Related Conditions
Understanding Visual Field Issues: Causes and Solutions for Eye Problems
Visual field issues Hello, may I ask if issues with the temporal retina cause defects in the temporal visual field or the nasal visual field? Is it possible that when focusing on nearby objects, the tremor is less pronounced, so without using corrective lenses to extend the focus...
Dr. Gao Pilin Reply:
Hello, Xin: Does a problem with the temporal retina cause a defect in the temporal visual field or the nasal visual field? Temporal retinal damage leads to nasal visual field loss. Is it true that when focusing on nearby objects, the tremor may be less pronounced, so without usin...[Read More] Understanding Visual Field Issues: Causes and Solutions for Eye Problems