Contact lenses, Ophthalmology FAQ

How Long for Bruising Near the Left Eye to Heal Before Contact Lenses?

Bruising at the outer corner of the left eye? Hello, doctor. I would like to ask about my left eye, which was accidentally injured and has a large bruise at the outer corner. How long will it take for the bruise to heal before I can wear contact lenses? Thank you!

Dr. Wang Zhishun Reply:
Hello, if there is a subconjunctival hemorrhage, it typically takes about 1 to 2 weeks for it to be absorbed.

Beginners Guide to Rigid Contact Lenses: Addressing Discomfort Issues

Beginner's Guide to Rigid Gas Permeable Contact Lenses I am a beginner with rigid gas permeable contact lenses, and after wearing them, my left eye hurts, but it's not the sensation of having a foreign object in my eye. Could this be due to not cleaning them properly? H...

Dr. Wang Zhishun Reply:
Hello, based on your description, it doesn't seem to be an issue with protein precipitation. Since it was just prepared, it should still be under warranty. I recommend returning to the original compounding pharmacy for an examination.

Understanding Conjunctival Edema: Causes and Recovery After Contact Lens Use

Conjunctival edema Hello, I usually wear silicone hydrogel bi-weekly contact lenses for work. Last Tuesday, around 6 PM, when I got home and removed my lenses, I noticed that the right lens felt a bit tight, possibly because I had just changed to a new pair on Monday and my eyes ...

Dr. He Jianxian Reply:
Basically, there are no issues, so you can rest assured.

Understanding Astigmatism Progression and Cone Keratoconus Risks

Astigmatism has been progressively worsening? Hello, doctor. I have had astigmatism in both eyes since I was 16, which has progressively worsened. Now at 27, I have 550 degrees of astigmatism in one eye and 600 degrees in the other. I don't wear glasses because they cause di...

Dr. Gao Pilin Reply:
Hello, Astigmatism is primarily caused by irregularities in the cornea, with keratoconus being the most common condition. Squinting can also lead to astigmatism, but it has a different etiology compared to keratoconus. It is recommended that you wear rigid gas permeable contact...

Managing Allergic Conjunctivitis: When Can You Wear Contact Lenses Again?

Allergic conjunctivitis and contact lenses? Hello Doctor, I stopped wearing contact lenses in June due to allergic conjunctivitis and have been using eye drops from the ophthalmologist for the past few months while monitoring my condition. My eyes do not hurt or itch, but there a...

Dr. Chen Anping Reply:
Hello, fasting for more than 8 hours (either 8 or 12 hours is acceptable) is required before blood tests. For a second blood test, please ensure that it is conducted at least one week apart. Thank you.

Red Eyes and Dryness After Contact Lens Use: Causes and Solutions

Dry eyes with bloodshot appearance? Hello, Doctor: Yesterday, I wore contact lenses, and it took a little time to remove them. After taking them out, my eyes became bloodshot, and even today, the redness is still very noticeable. Additionally, I am experiencing dryness and slight...

Dr. Gao Pilin Reply:
Hello, The presence of bloodshot eyes and a stinging sensation may be due to prolonged wear of contact lenses, which can sometimes be difficult to remove. During removal, there is a risk of scratching the cornea. The recommended wearing time for contact lenses varies by individ...

Post-Cataract Surgery: Addressing Vision Issues and Discomfort

Postoperative issues after cataract surgery? Dear Doctor, I have undergone cataract surgery on my left eye. Post-surgery, I wear plano lenses for my left eye (with astigmatism of 100 degrees) and continue to wear -4.00 diopter lenses for my right eye, which is nearsighted. I ha...

Dr. Gao Pilin Reply:
Hello Pierce: 1. There is no need for surgery on the left eye anymore. 2. Adjustments cannot be made unless the lens is removed and replaced, but this is not recommended. 3. Surgery is not advised. 4. If you do not want laser treatment, you may consider wearing contact lenses for...

Understanding Eye Flickering During Sleep: Causes and Concerns

Eyes may flicker during sleep? I have high myopia of about -5.600 diopters. Recently, when I prepare to sleep, I notice a brief flickering when I close my eyes and then open them (I can also feel the flickering while my eyes are closed). Additionally, after waking up, I experienc...

Dr. Gao Pilin Reply:
Hello: Seeing flickering lights is caused by retinal discharge, and sometimes it can be due to vitreous traction on the retina, so it is advisable to seek medical examination. Most of the time, it is not a concern and can be monitored. Halos are caused by wearing contact lenses f...

Post-Stye Surgery Care: Can You Wash Your Face and Wear Contacts?

After surgery for a stye? Can I wash my face with water after the stye surgery? When can I wear contact lenses? How long should I apply the eye ointment? Is it necessary to do it for a whole week?

Dr. Gao Pilin Reply:
Hello Wayne: You should be fine in a week. Please follow the instructions of your surgeon regarding medication, which is usually stopped after one week. The ophthalmology department at Puzi Hospital in Taiwan is open Monday to Friday from 8:00 AM to 12:00 PM and Wednesday afterno...

Can Doctors Detect Recent Use of Pupil-Dilating Eye Drops?

Can a doctor tell if someone has used pupil-dilating drops? If I have worn contact lenses (which my family doesn't know about, as I bought them myself), and my family is planning to take me to get an eye exam, will the doctor be able to tell? It has only been a month since I...

Dr. Wang Zhangji Reply:
I'm sorry, this is a non-medical question.

Understanding Keratoconus: Safety, Stability, and Treatment Options in Taiwan

Keratoconus Hello Doctor: My daughter was diagnosed with keratoconus in the first year of junior high school, and she is now 21 years old. She has changed her contact lenses numerous times. Recently, she visited a medical center, and the doctor suggested considering the implantat...

Dr. Gao Pilin Reply:
Hello, Yuan Yuan: If you have already visited a medical center outpatient clinic and have been advised to implant a corneal ring, it is likely the best recommendation based on the physician's assessment. I do not have experience with corneal rings and cannot provide you with...

Help! My Contact Lens Feels Stuck in My Eye – What Should I Do?

Contact lens disappears into the eyeball? Hello, it seems that my contact lens is still in my eye. At first, I felt a bit of a foreign body sensation, but it's gradually becoming less noticeable. Can contact lenses get stuck behind the eyeball? If it remains in my eye, shoul...

Dr. Gao Pilin Reply:
Hello Lily: Contact lenses cannot fall behind the eyeball because the front and back are not connected. If you continue to feel a foreign body sensation, it may still be inside, and you should seek medical attention as soon as possible. Taiwan E-Hospital Puzi Hospital Ophthalmolo...

Understanding Dry and Itchy Eyes After Prolonged Contact Lens Use

Dry and itchy eyes? I had been lazy for a while and didn't take out my contact lenses for several days, even wearing them while sleeping. Now that I've removed them, my eyes feel very dry and itchy. What could be the problem, and is there a possibility that something ha...

Dr. Wang Zhishun Reply:
Hello, as you mentioned, most discomfort is caused by allergies or hypoxia, and the likelihood of developing something serious is low; if the dryness and itching in your eyes persist, it is still advisable to see an ophthalmologist.

Vision Problems After Eye Injury: Can My Sight Improve?

Vision problems after eye injury? Dear Doctor, I previously experienced redness in my eyes and self-administered eye drops, which led to irritation and localized abrasion on the eyeball. After consulting a physician, I was prescribed medication, and the redness has improved. Duri...

Dr. Gao Pilin Reply:
Hello Miss Lin: Generally, a superficial corneal abrasion should heal and restore vision once the cornea has recovered. However, if scarring occurs in the cornea, it can affect vision, especially if the scar is located near the center of the cornea. If your vision has worsened, i...

Can I Wear Contact Lenses with High Myopia and Glaucoma?

Issues Related to Wearing Contact Lenses Hello Doctor: My current eye condition is as follows: I have high myopia (800-900), with several retinal tears, and I have been diagnosed with signs of glaucoma after undergoing laser reinforcement. I am currently using eye drops for manag...

Dr. He Jianxian Reply:
Wearing contact lenses is not significantly related to your current eye condition. As long as you do not wear them for extended periods and do not experience any noticeable discomfort while wearing them, there should not be any major issues.

Choosing the Right Glasses Prescription for Uneven Vision

Issues with prescription glasses for near vision? Hello Dr. Wang, Recently, during my eye exam for new glasses, it was found that the lens in my right eye is not as clear, and after correction, my best vision only reaches 0.8, unlike my left eye which can achieve 1.0. Should I r...

Dr. Wang Zhishun Reply:
Hello: If you find that the lens of your right eye is not clear enough, it could be cataracts. You should first see an ophthalmologist, not just replace your contact lenses. Don't get it confused!

Cataract Surgery Considerations for High Myopia Patients: Key Questions Answered

Cataract surgery considerations for individuals with high myopia: residual refractive error and disparity issues? I have myopia in both eyes of approximately 800 degrees, along with astigmatism of about 150 to 200 degrees, and only mild presbyopia. A few years ago, I noticed a co...

Dr. Gao Pilin Reply:
Hello Angus: 1. The recommendation to leave a reserve of 250-300 degrees of myopia is to allow you to avoid wearing reading glasses for a longer time. If you reserve only 100-150 degrees at the age of sixty or seventy, it may not be sufficient, and you will need to wear reading ...

Understanding Marginal Keratitis: Causes, Treatment, and Risks

Corneal ulcer issues? Hello, Doctor Gao: I have been experiencing recurrent marginal keratitis over the past two years. Should I consult an immunologist? Aside from occasional urticaria in winter, I have no other health issues. Is it advisable to avoid foods or supplements that b...

Dr. Gao Pilin Reply:
Hello Tammy: The occurrence of marginal keratitis (ulcer) is primarily due to an immune hypersensitivity reaction to staphylococcal toxins. The treatment for peripheral corneal ulcers caused by marginal keratitis, when medication is necessary, mainly involves antibiotics and cort...

Managing Dry Eyes During Pregnancy: Contact Lens Considerations

Dry Eye Syndrome Hello doctor, I have a question. I had dry eye syndrome before pregnancy, and now that I am pregnant, my eyes are even drier. Sometimes when I wear contact lenses, they become sticky and hard to remove. I have to use saline solution to help take them out, but usi...

Dr. Gao Pilin Reply:
Hello, during pregnancy, hormonal changes can sometimes lead to dryness in the eyes. It is advisable to avoid wearing contact lenses temporarily. After delivery, the condition is likely to improve, and you can try wearing them again. You won't have to avoid them for life, so...

Challenges of Wearing Contact Lenses During Pregnancy

Eye problems Hello doctor, I would like to ask about wearing contact lenses during pregnancy. Sometimes, I find it difficult to remove my contact lenses, especially after six months of pregnancy; they seem to stick to my eyes. I have to pull them off forcefully, but I'm worr...

Dr. Gao Pilin Reply:
Hello, if you are having trouble removing your contact lenses, it may be due to dry eyes. You can try applying a few drops of saline solution to moisten your eyes, which should make it easier to remove the lenses. Pregnancy can also cause increased dryness in the eyes, leading to...

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