Why Do I See a Black Circle in Bright Lights? Eye Health Explained
A black circular object appears at the center of the light source? Recently, I have noticed that when I look at light sources (such as light bulbs, headlights of cars at night, and streetlights) with my left eye, a small black circular object occasionally appears at the center of...
Dr. Gao Pilin Reply:
Hello: Based on your description, the appearance of a black circular object in your left eye when looking at a light source may be caused by various factors, and further examination is needed to determine the specific cause. Here are several possible reasons: 1. Vitreous opacit...[Read More] Why Do I See a Black Circle in Bright Lights? Eye Health Explained
Common Eye Issues: Managing High Eye Pressure and Visual Disturbances
Eye problems Hello, Doctor. I have a few questions: 1. My intraocular pressure seems to be a bit high; do you have any methods to help lower it? 2. I wear orthokeratology lenses at night, but when I blink quickly in the dark, I see a circular light in the center of my vision. 3. ...
Dr. Gao Pilin Reply:
Hello: 1. Management of elevated intraocular pressure: - Pharmacological treatment: If intraocular pressure is elevated, topical medications to lower eye pressure are typically used. The specific medication should be based on the ophthalmologist's prescription. - L...[Read More] Common Eye Issues: Managing High Eye Pressure and Visual Disturbances
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
Can Shower Water Cause Acanthamoeba Infection in Your Eyes?
Does rinsing the eyes with tap water from a showerhead increase the risk of Acanthamoeba keratitis infection? Hello, Doctor. Today at noon, while eating a salad, I accidentally got some vinaigrette dressing splashed into my right eye, so I chose to rinse my right eye with a showe...
Dr. Gao Pilin Reply:
Hello: Regarding your concerns, let me explain from several perspectives: 1. **Possibility of Acanthamoeba Infection**: Acanthamoeba is indeed present in the natural environment, particularly in water sources such as tap water, lakes, and swimming pools. However, the likelihood...[Read More] Can Shower Water Cause Acanthamoeba Infection in Your Eyes?
Understanding Blurry Vision: Insights on Retinal Health and Nerve Myelin
Blurred vision (Sequence 208652) Hello Dr. Gao, Today I had an ophthalmology appointment where I underwent OCT and dilated fundus examination. Everything is normal except for the peripheral retina in my right eye, which is thinner (the doctor mentioned it resembles that of some...
Dr. Gao Pilin Reply:
Hello: Myopia patients exhibit posterior elongation of the eyeball due to an increase in axial length, leading to degeneration of the choroid and retina surrounding the optic nerve. This is a common occurrence and should not be a cause for concern. Optic Nerve Myelination refer...[Read More] Understanding Blurry Vision: Insights on Retinal Health and Nerve Myelin
Understanding the Difference Between Eye Prescription and Visual Acuity
"Degree" and "visual acuity" of the eyes? I have myopia in both eyes, with the same degree of -3.50 diopters. However, during a vision test (using a pinhole), my left eye scored 0.6 and my right eye scored 0.9. I would like to ask: 1. Will this difference in v...
Dr. Gao Pilin Reply:
Hello: 1. Vision disparity and dominant eye: Such a vision disparity can indeed lead you to rely more on your right eye in daily life. The better vision in your right eye naturally encourages you to use it more for visual activities, resulting in less frequent use of your left ...[Read More] Understanding the Difference Between Eye Prescription and Visual Acuity
Understanding Eye Pressure Issues: Symptoms and Solutions
Intraocular pressure issues? Hello Doctor, I have some questions regarding my eyes. 1. Protruding Eyes: Recently, I noticed that when I lie down or sit and touch my eyes, they seem to protrude, accompanied by a feeling of pressure. However, after applying a warm towel or exerci...
Dr. Gao Pilin Reply:
Hello: 1. Protruding eyes accompanied by a feeling of fullness that improves with warm compresses or exercise may be related to blood circulation in the eyes rather than a symptom of elevated intraocular pressure. Elevated intraocular pressure is typically associated with symptom...[Read More] Understanding Eye Pressure Issues: Symptoms and Solutions
Post-Cataract Surgery: Understanding Visual Distortion in One Eye
Post-cataract surgery After cataract surgery, the left eye sees images that are slightly elongated and the edges are slightly curved, while the right eye sees a normal circular shape. The left eye perceives a slightly elongated circle, and vertical straight lines appear slightly ...
Dr. Gao Pilin Reply:
Hello: It is normal to experience some optical abnormalities or changes in visual perception after cataract surgery. This may be related to factors such as the characteristics of the intraocular lens used during the procedure, the curvature of the cornea post-surgery, and the sha...[Read More] Post-Cataract Surgery: Understanding Visual Distortion in One Eye
Understanding the Impact of Pressure Glasses on Eye Health and Vision
1. Glasses issues 2. Glasses causing red, blue, and yellow fringes around objects 3. Eye pain issues Hello, doctor. I have the following questions that are troubling me, and I would like your clarification: Question 1: 1. Are pressure-relieving lenses / comfort lenses / stud...
Dr. Gao Pilin Reply:
Hello: Question 1: 1. Generally speaking, multifocal lenses are not discouraged; rather, they should be evaluated by a qualified ophthalmologist or optometrist to determine their suitability for you. 2. Currently, there is no clear evidence indicating that long-term use of mult...[Read More] Understanding the Impact of Pressure Glasses on Eye Health and Vision
Can Floaters Cause Blurry Vision? Understanding Your Eye Symptoms
Does floaters cause blurred vision? I have been experiencing floaters in both eyes for six months, and occasionally I see flashes of light. Since I first noticed the symptoms, I have visited two clinics for fundus examinations, both of which showed no abnormalities. However, in t...
Dr. Gao Pilin Reply:
Hello: Based on your description, having floaters in both eyes for six months along with occasional flashes, and experiencing blurred vision in the left eye, these symptoms may indicate some underlying issues in the eye, particularly related to the retina. Here are some possible ...[Read More] Can Floaters Cause Blurry Vision? Understanding Your Eye Symptoms
Understanding Eye Issues: From Floaters to Glaucoma Concerns
Eye problems Hello Doctor, I am patient 207864. I have a few questions regarding your previous response, particularly about the issue of rainbow halos. I mentioned my experience with floaters a few years ago, and at that time, my eye pressure was normal. Last year, I had an eye e...
Dr. Gao Pilin Reply:
Hello: Based on the symptoms and experiences you described, here are my recommendations: 1. Rainbow halos and intraocular pressure issues: Rainbow halos may be related to glaucoma, but your previous eye pressure checks were normal. If you have recently noticed rainbow halos acc...[Read More] Understanding Eye Issues: From Floaters to Glaucoma Concerns
Understanding Eye Flashes and Nerve Cupping in High Myopia
Flashes of light; optic nerve cupping? Hello Doctor: A few months ago, I discovered floaters in my vision, and after undergoing dilation, no issues were found at that time. Over the past few months, I have intermittently experienced flashes of light (similar to a light bulb flick...
Dr. Gao Pilin Reply:
Hello: Floaters refer to the appearance of black dots, dust, or small insects in your line of sight, usually caused by floating debris in the vitreous body. If the symptoms of flashes change significantly and persist, it is advisable to seek medical evaluation promptly. If they a...[Read More] Understanding Eye Flashes and Nerve Cupping in High Myopia
Understanding Monocular Diplopia: Causes and Effects of Keratoconus
Monocular diplopia Recently, I suddenly experienced monocular diplopia, especially when looking at lights, scrolling text, or objects illuminated by light or sunlight. However, I noticed that simply squinting (without any special effort) makes the diplopia and ghosting disappear....
Dr. Gao Pilin Reply:
Hello: Keratoconus can indeed cause monocular diplopia and ghosting, as it leads to an irregular corneal surface that prevents light from focusing properly, resulting in blurred vision and double vision. However, squinting may temporarily alleviate symptoms. This is because squin...[Read More] Understanding Monocular Diplopia: Causes and Effects of Keratoconus
Understanding Monocular Diplopia: Causes and Concerns for Eye Health
Monocular diplopia Hello, Dr. Gao. Thank you for your previous response! After researching some information and consulting with my doctor, I still have a few questions I would like to ask: 1. For individuals with congenital amblyopia (approximately +500 diopters in both eyes), i...
Dr. Gao Pilin Reply:
Hello: 1. Individuals with congenital amblyopia may not necessarily have inferior optic nerves compared to those without the condition. Thinning of the optic nerve may be associated with glaucoma, especially if there are signs of nerve fiber thinning, but the condition of the opt...[Read More] Understanding Monocular Diplopia: Causes and Concerns for Eye Health
Understanding Astigmatism and Halo Effects in Night Vision
Astigmatism and aperture? Hello Doctor: In the past few months, I have been seeing halos and glare around streetlights at night, and even during the day, I notice this effect when looking at bright lights indoors. There are also rainbow-colored rings around lights. I have seen a ...
Dr. Gao Pilin Reply:
Hello: If you experience halos and glare when looking at streetlights at night or bright lights indoors during the day, along with nearby rainbow halos, this may be due to irregularities in the cornea or the surface of the eye. This phenomenon is typically associated with several...[Read More] Understanding Astigmatism and Halo Effects in Night Vision
Can Eye Protrusion Be Reversed? Understanding Myopia and Treatment Options
Can bulging eyes be restored? I have myopia with a prescription of -3.00 diopters in my left eye and -3.75 diopters in my right eye. It seems that my eyelids have thickened along with my myopia, transitioning from double eyelids to more of a monolid appearance. Is this related to...
Dr. Gao Pilin Reply:
Hello: Your myopia (left eye -300 degrees, right eye -375 degrees) may affect the appearance of your eyelids, but this is not a common phenomenon. Typically, higher degrees of myopia may cause the eyeball to protrude slightly, which can lead to the eyelids appearing thicker or ch...[Read More] Can Eye Protrusion Be Reversed? Understanding Myopia and Treatment Options
Understanding Vision Problems: Contact Lenses vs. Glasses and Keratoconus Concerns
Vision examination issues I recently visited an ophthalmologist and found that my vision with contact lenses is 0.8 and 0.9, while with regular glasses, it is only 0.4 and 0.5. The axial length of my eyes was measured, but the doctor did not assess the true degree of astigmatism....
Dr. Gao Pilin Reply:
Hello: There may be differences in the prescription between contact lenses and glasses for several reasons: 1. Different fitting methods: Contact lenses are typically fitted directly on the cornea, while glasses are fitted at a distance in front of the eyeball. Since the curvatur...[Read More] Understanding Vision Problems: Contact Lenses vs. Glasses and Keratoconus Concerns
Understanding Cataract Checks: What Eye Exams Reveal About Your Vision
Cataract Examination (Sequence 207641) Thank you, Dr. Gao, for your previous response. I would like to ask about my recent visits to the ophthalmologist over the past three months regarding the issue of an enlarged optic disc. During this time, I have consulted several eye doctor...
Dr. Gao Pilin Reply:
Hello: Based on the information you provided, ophthalmologists typically conduct comprehensive eye examinations, including assessments of the retina and optic nerve, using various devices and techniques such as fundus photography and optical coherence tomography. These examinatio...[Read More] Understanding Cataract Checks: What Eye Exams Reveal About Your Vision
Post-Cataract Surgery Discomfort: Insights on Vision Issues and Solutions
Monocular vision & refractive error & postoperative discomfort after cataract surgery? Hello, Director Gao. Below is a summary of my medical history regarding my "right" eye (the left eye is normal): 1. In 2001 (at age 20), I experienced significant distortion ...
Dr. Gao Pilin Reply:
Hello: 1. Poor visual fusion when using both eyes simultaneously may be related to a previous macular issue in your right eye. Problems with the macula can increase sensitivity to disparity, leading to a decline in visual quality when both eyes work together. This condition may...[Read More] Post-Cataract Surgery Discomfort: Insights on Vision Issues and Solutions
Managing Complex Vision Issues: Myopia, Hyperopia, and Astigmatism in Teens
One eye has myopia with astigmatism, while the other eye has hyperopia with astigmatism, resulting in a significant disparity in vision? The patient is 14 years old, with hyperopia of +3.25 diopters and astigmatism of +0.75 diopters in the left eye, and myopia of -0.75 diopters a...
Dr. Gao Pilin Reply:
Hello: 1. The purpose of mydriatic agents is to paralyze the ciliary muscle, temporarily impairing the eye's ability to adjust focus. This helps relax the eye muscles for fitting glasses or examining the fundus, and can effectively suppress the progression of myopia, but it ...[Read More] Managing Complex Vision Issues: Myopia, Hyperopia, and Astigmatism in Teens