Intraocular pressure, Ophthalmology FAQ

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Understanding Eye Pain: Causes and When to See an Eye Doctor

Question for the doctor? Hello Doctor, I would like to ask about an issue I experienced. I was leaning against the wall while looking at my phone when I suddenly felt pain near my right eye, temple, and the back of my neck. It was quite uncomfortable, but after lying down for abo...


Dr. Gao Pilin Reply:
Hello: Based on the symptoms you described, improper posture may indeed lead to muscle tension, resulting in headaches. Particularly, maintaining a semi-reclined position while using your phone for extended periods can easily cause tension in the neck, shoulders, and eye muscles,...

[Read More] Understanding Eye Pain: Causes and When to See an Eye Doctor


Understanding Eye Floaters and Bright Spots: A Guide for Diabetics

Bright spots in the eyes? Hello, Doctor Gao. I have diabetes with a current HbA1c of 6.2. I am experiencing floaters and mild cataracts, and I would like to ask you some questions. Thank you. 1. Can I apply warm compresses and massage my eyes with elevated intraocular pressure, ...


Dr. Gao Pilin Reply:
Hello: 1. High intraocular pressure, mild cataracts, and floaters: Generally, mild warm compresses can help relieve eye fatigue, but excessive massage should be avoided to prevent pressure on the eyeball, especially in patients with high intraocular pressure or cataracts. 2. F...

[Read More] Understanding Eye Floaters and Bright Spots: A Guide for Diabetics


Does Eye Muscle Tension Directly Affect Intraocular Pressure?

Intraocular pressure issues? Does tension in the eye muscles directly lead to increased intraocular pressure? Thank you for your response, doctor.


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

[Read More] Does Eye Muscle Tension Directly Affect Intraocular Pressure?


Can High Myopia Cause Enlarged Blind Spots and Visual Shadows?

Does high myopia cause an expansion of blind spots? + Visual shadows in dimly lit areas? Hello Doctor, I have a few questions I would like to ask. 1. I noticed in the past year or two that when I close one eye, I can see a dark area near my blind spot in both eyes. Previously, ...


Dr. Gao Pilin Reply:
Hello: 1. High myopia and the expansion of the blind spot associated with high myopia (1000 and 1200 diopters) can indeed lead to retinal degeneration, which may affect the structures surrounding the optic nerve, resulting in an enlarged blind spot. Although your OCT scan shows...

[Read More] Can High Myopia Cause Enlarged Blind Spots and Visual Shadows?


Understanding Intraocular Pressure: Myths and Facts Explained

Intraocular pressure issues? 1. You previously mentioned that the instrument for measuring intraocular pressure assesses the aqueous humor. If elevated intraocular pressure is caused by muscle tension in the eye, can it still be detected? 2. I found online that the tonometry dev...


Dr. Gao Pilin Reply:
Hello: 1. The relationship between intraocular pressure measurement and ocular muscle tension: The instruments used to measure intraocular pressure primarily assess the pressure of the aqueous humor. Ocular muscle tension generally does not directly affect aqueous humor pressur...

[Read More] Understanding Intraocular Pressure: Myths and Facts Explained


Understanding Visual Distortion: Is It Temporary or Permanent?

Visual distortion I would like to ask the doctor: Is the distortion of vision caused by general retinal disorders temporary? For example, is it possible to experience a momentary distortion of objects that quickly returns to normal? Or once distortion occurs, will it persist unti...


Dr. Gao Pilin Reply:
Hello: Distortion of vision caused by retinal disease is generally not temporary but rather a persistent change until appropriate treatment is administered. If you suddenly experience distortion of vision in your daily life and this condition quickly resolves, such symptoms are l...

[Read More] Understanding Visual Distortion: Is It Temporary or Permanent?


Understanding Floaters and Flashes: Exercise Guidelines for Eye Health

Vitreous floaters combined with photopsia? Hello, doctor. I have myopia with a prescription of -5.25 in my right eye and -5.00 in my left eye. Last week, I suddenly experienced symptoms of floaters in my right eye, accompanied by flashes of light (which I only see when I turn my ...


Dr. Gao Pilin Reply:
Hello: Thank you for your detailed description. Floaters and flashes are typically associated with vitreous degeneration and retinal traction. The symptoms you described do require attention, especially given the presence of areas of retinal weakness. 1. Are activities like jum...

[Read More] Understanding Floaters and Flashes: Exercise Guidelines for Eye Health


Understanding Corneal Thickness and Endothelial Cell Health in Myopia

Corneal thickness and corneal endothelial cells? Hello, Doctor Gao. I am suffering from high myopia and elevated intraocular pressure. I have a few questions to ask you. Question 1: Since intraocular pressure is related to corneal thickness and whether or not to use eye drops to...


Dr. Gao Pilin Reply:
Hello: Question 1: Accuracy of Corneal Thickness Measurement by Different Instruments The measurement of corneal thickness can indeed be influenced by the instrument used, and there may be slight variations among different devices. 1. Non-contact tonometer: This instrument is p...

[Read More] Understanding Corneal Thickness and Endothelial Cell Health in Myopia


Understanding Rainbow Halo Vision After Waking Up: Causes and Solutions

Seeing rainbow halos upon waking up? Recently, my eyes have been a bit dry, and I've been yawning, blinking, and tearing up. One day, I felt that my tears didn't spread properly, and after squeezing out some tears, I kept blinking until I felt pain. Since that day, when...


Dr. Gao Pilin Reply:
Hello: Your symptoms include seeing rainbow halos upon waking and experiencing dryness and pain in your eyes. This may involve several ocular issues. Here are some possible causes: 1. Dry Eye Syndrome: Dryness can lead to an irregular corneal surface, causing light to scatter a...

[Read More] Understanding Rainbow Halo Vision After Waking Up: Causes and Solutions


Should You See a Doctor for Hard Eyes? Understanding Glaucoma Risks

Eye strain? Doctor, I apologize for the interruption. I recently researched online and found that hard eyeballs could be a sign of glaucoma. My eyes feel hard, and although I have been feeling nauseous, I usually experience that. I don't have any other discomfort. Should I s...


Dr. Gao Pilin Reply:
Hello: You mentioned experiencing eye strain and a sensation of hardness in your eyeball, which are indeed symptoms that require attention. Increased hardness of the eyeball may indicate elevated intraocular pressure, which is one of the potential signs of glaucoma. If glaucoma i...

[Read More] Should You See a Doctor for Hard Eyes? Understanding Glaucoma Risks


Long-Term Use of Short-Acting Mydriatics: Risks and Concerns for Adults

Long-term use of short-acting mydriatics? Using short-acting mydriatic drops for eye fatigue in adults over a long period raises several concerns. If you have been using short-acting mydriatics for about 7 to 8 years, especially after starting long-acting mydriatics in elementary...


Dr. Liang Ce Reply:
We recommend that you: 1. Discuss the above situation further with your attending physician. 2. Consider seeking a consultation at another medical facility. Thank you! Wishing you good health!

[Read More] Long-Term Use of Short-Acting Mydriatics: Risks and Concerns for Adults


Understanding Black Spots When Rolling Eyes: Is It Eye Pressure?

Closing your eyes and turning them to the extreme angle can result in the appearance of black spots? Hello: I have approximately 400 degrees of myopia. When I turn my eyes while sleeping, I notice a dark spot appearing at the corners of my closed eyes, but when I open my eyes, th...


Dr. Gao Pilin Reply:
Hello: Based on your description, the shadows you experience when turning your eyes to the extreme angles with your eyes closed may be related to changes in intraocular pressure. When the eyes are turned to their limits, the extra pressure exerted by the extraocular muscles may t...

[Read More] Understanding Black Spots When Rolling Eyes: Is It Eye Pressure?


Does Repeated Eye Pressure Testing Damage Your Eyes?

Does repeated use of the tonometer for eye pressure testing harm the eyeball? I was very sensitive and kept blinking during the eye pressure test, which frustrated the optometrist. They forcibly held my eyelids open and sprayed the anesthetic multiple times—at least six times. I ...


Dr. Gao Pilin Reply:
Hello: The air puff tonometer used for measuring intraocular pressure is a non-invasive method that primarily utilizes a small stream of air to measure eye pressure. Generally, this instrument does not cause harm to the eyeball even with multiple puffs. 1. Will multiple air puffs...

[Read More] Does Repeated Eye Pressure Testing Damage Your Eyes?


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 Visual Afterimages: When to Seek Eye Care

Seeing visual afterimages or bright spots? When I close my eyes, I can see some small bright spots and dark dots that appear and disappear. Some of them can also be seen when my eyes are open, resembling visual afterimages. They are most noticeable when I blink, and some change f...


Dr. Gao Pilin Reply:
Hello: The symptoms you mentioned, including seeing small bright spots and dark spots when your eyes are closed, as well as experiencing fleeting shadows upon opening your eyes, may be related to issues with the retina or vitreous body. These phenomena can sometimes be considered...

[Read More] Understanding Visual Afterimages: When to Seek Eye Care


Understanding Retinal Detachment Risks for High Myopia Patients

Retinal issues Hello, doctor. I would like to ask: I have high myopia of -600 degrees, and I sometimes worry about retinal detachment. I read online that sudden exertion can cause a rapid increase in intraocular pressure, leading to retinal detachment. Can you please tell me if e...


Dr. Gao Pilin Reply:
Hello: High myopia (greater than -6.00 diopters) is indeed one of the high-risk factors for retinal detachment. Due to the longer axial length of the eyes in individuals with high myopia, the retina becomes thinner, increasing the risk of retinal tears or detachment. Certain acti...

[Read More] Understanding Retinal Detachment Risks for High Myopia Patients


Understanding High Eye Pressure: Insights on Diagnosis and Treatment

Ocular hypertension Hello, Dr. Gao. Due to high myopia, with prescriptions of -800 and -700 diopters, my tonometry readings have reached a maximum of 24 mmHg, mostly ranging between 21 and 22 mmHg. When using a handheld tonometer, the readings are around 18 and 17 mmHg. I have co...


Dr. Gao Pilin Reply:
Hello: Based on the detailed information you provided, here are my recommendations and explanations: 1. Should you continue using eye drops? Given your high myopia and elevated intraocular pressure, you belong to a high-risk group for glaucoma, making the preventive use of intra...

[Read More] Understanding High Eye Pressure: Insights on Diagnosis and Treatment


Common Eye Issues: Understanding Shadows, Light Sensitivity, and Glaucoma

Eye-related issues? Doctor, I have some questions I would like to ask: 1. Recently, whenever I am in sunlight (even just a little), I see dark, shadow-like lines in front of my eyes. Could this be due to my long eyelashes casting a shadow that I am perceiving? Is this a possibi...


Dr. Gao Pilin Reply:
Hello: 1. Seeing black streaks in sunlight: This condition is likely what you are experiencing as "floaters." Floaters are caused by changes in the vitreous body of the eye and typically become more noticeable with age. While it is possible that your eyelashes may cas...

[Read More] Common Eye Issues: Understanding Shadows, Light Sensitivity, and Glaucoma


Understanding Steroid Use in Eye Care: Risks and Considerations

Corticosteroids Hello, Doctor. I previously had recurrent styes, and using a regular eye ointment (without steroids) and eye drops helped them disappear in about 4 to 5 days. However, there was one occasion when a stye was particularly large, and after applying treatment for two ...


Dr. Gao Pilin Reply:
Hello: 1. Long-term use of topical corticosteroids and their effects on the eyes: Using a corticosteroid cream for six weeks can indeed have a certain degree of impact on the eyes. Corticosteroids can reduce inflammation, but prolonged use carries a low risk of increasing the c...

[Read More] Understanding Steroid Use in Eye Care: Risks and Considerations


Understanding Glaucoma Medications and Eye Health Concerns

Glaucoma medications and eye-related conditions? Hello, Doctor Gao! I've been anxious for a while and would like to ask you a few questions: 1. I previously visited a glaucoma specialist and had a test called an Epithelial Map. I found online that the epithelial cell layer...


Dr. Gao Pilin Reply:
Hello: 1. The epithelial thickness measured by the Epithelial Map is typically around 50 micrometers, while your upper layer has reduced to 28 micrometers, indicating a significant thinning of the corneal epithelium, possibly related to previous corneal abrasion. As for the Pac...

[Read More] Understanding Glaucoma Medications and Eye Health Concerns


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