Locations
Office
About
SpecialtiesDoctors may have more than one area of specialty interest. Board certification in a specialty area means the doctor has completed formal training and has practice experience in that specialty, and has passed the certification examination from the corresponding accredited medical specialty board.
Doctors may have more than one area of specialty interest. Board certification in a specialty area means the doctor has completed formal training and has practice experience in that specialty, and has passed the certification examination from the corresponding accredited medical specialty board.
Ophthalmology
Languages spoken
Mandarin
Doctor Q&A
31 Answers
9 Agrees
The number of answers this doctor has agreed with.
A 31-year-old member asked:
Dr. Kang Zhanganswered
28 years experience
Talk to your doctor: You should talk to your doctor to discuss the purpose of the procedure and the risks and benefits of the procedure. It is also helpful to ask your doc... Read More
Created for people with ongoing healthcare needs but benefits everyone.
4.9k viewsReviewed >2 years ago
A 34-year-old member asked:
Dr. Kang Zhanganswered
28 years experience
Evaluate: A variety of conditions can cause the symptoms you're describing. It is difficult to diagnose without seeing you in person, and the treatment depends ... Read More
Created for people with ongoing healthcare needs but benefits everyone.
4.9k viewsAnswered >2 years ago
A 49-year-old member asked:
Dr. Kang Zhanganswered
28 years experience
Allergies: You may have allergies. Patients with allergies are found to have dark circles under their eyes, also known as allergic shiners. If you are blowing yo... Read More
Created for people with ongoing healthcare needs but benefits everyone.
4.9k viewsReviewed >2 years ago
A 21-year-old female asked:
Dr. Kang Zhanganswered
28 years experience
Floaters: What you are seeing may be floaters, which may be due to a variety of eye disorders (e.g., vitreous syneresis, posterior vitreous detachment, retinal ... Read More
Created for people with ongoing healthcare needs but benefits everyone.
4.9k viewsReviewed >2 years ago
A 22-year-old male asked:
Dr. Kang Zhanganswered
28 years experience
Floaters: This could be a floater in the back part of your eye. New onset of floaters should be evaluated by your ophthalmologist. Also, if you ever see a showe... Read More
Created for people with ongoing healthcare needs but benefits everyone.
4.9k viewsAnswered >2 years ago
A 27-year-old female asked:
Dr. Kang Zhanganswered
28 years experience
Might not stop it: It's related to the function of brain.So you might not be able to stop it.
Created for people with ongoing healthcare needs but benefits everyone.
5k viewsAnswered >2 years ago
A 24-year-old male asked:
Dr. Kang Zhanganswered
28 years experience
Yes: Voriconazole 1% as a topical eye drop has shown efficacy in treating fungal keratitis. It can be used as an alternative to Natamycin 5% drops or Ampho... Read More
Created for people with ongoing healthcare needs but benefits everyone.
4.9k viewsAnswered >2 years ago
A 22-year-old male asked:
Dr. Kang Zhanganswered
28 years experience
Help sleeping: There are many things you could try to help you fall asleep. Make sure you are tired when you go to sleep. Do not take naps during the day so you will... Read More
Created for people with ongoing healthcare needs but benefits everyone.
4.9k viewsAnswered >2 years ago
A 18-year-old female asked:
Dr. Kang Zhanganswered
28 years experience
Parasthesias: These symptoms are called parasthesias and could be a result of a number of different issues including anxiety or panic attacks, malnutrition, vitami... Read More
Created for people with ongoing healthcare needs but benefits everyone.
4.9k viewsReviewed >2 years ago
A 46-year-old member asked:
Dr. Kang Zhanganswered
28 years experience
If it's on macular: If the laser go directly to macular area, it might be hurt.
Created for people with ongoing healthcare needs but benefits everyone.
5k viewsAnswered >2 years ago
A 22-year-old member asked:
Dr. Kang Zhanganswered
28 years experience
Clotting disease: Hemophilia is a hereditary genetic disorder that impairs the body's ability to clot or stop bleeding. There are many factors involved in clotting and ... Read More
Created for people with ongoing healthcare needs but benefits everyone.
4.9k viewsAnswered >2 years ago
A 23-year-old male asked:
Dr. Kang Zhanganswered
28 years experience
Abscess: Your description sounds like an abscess or a pustule. If it is not resolving and there is continued pus and the redness and swelling is spreading, thi... Read More
Created for people with ongoing healthcare needs but benefits everyone.
4.9k viewsAnswered >2 years ago
A 24-year-old male asked:
Dr. Kang Zhanganswered
28 years experience
Depends on cause: Depends on the cause of the dark circles. Often getting enough sleep, eating healthy and exercise can improve dark circles. Avoiding smoking always wi... Read More
Created for people with ongoing healthcare needs but benefits everyone.
4.9k viewsAnswered >2 years ago
A 27-year-old male asked:
Dr. Kang Zhanganswered
28 years experience
No: Steroid creams should not be used on the face unless it is very necessary. They can caused permanent changes to the skin and more delicate skin like t... Read More
Created for people with ongoing healthcare needs but benefits everyone.
4.9k viewsReviewed >2 years ago
A 47-year-old member asked:
Dr. Kang Zhanganswered
28 years experience
Take a good rest.: Take a good rest or walk around can help.
Created for people with ongoing healthcare needs but benefits everyone.
5k viewsAnswered >2 years ago
A 21-year-old female asked:
Dr. Kang Zhanganswered
28 years experience
Headache: This sounds like a headache and could be a migraine or could be a different type of headache like a tension headache. If the pain doesn't resolve, or ... Read More
Created for people with ongoing healthcare needs but benefits everyone.
4.9k viewsReviewed >2 years ago
A 36-year-old member asked:
Dr. Kang Zhanganswered
28 years experience
Amniotic fluid: Amniocentesis is a technique for obtaining amniotic fluid from the uterine cavity using a needle. It can be for both diagnostic and therapeutic purpos... Read More
Created for people with ongoing healthcare needs but benefits everyone.
4.9k viewsReviewed >2 years ago
A 44-year-old member asked:
Dr. Kang Zhanganswered
28 years experience
Respiratory : Mumps is caused by a virus and is spread from person to person through contact with respiratory secretions.
Created for people with ongoing healthcare needs but benefits everyone.
4.9k viewsAnswered >2 years ago
A 45-year-old member asked:
Dr. Kang Zhanganswered
28 years experience
Abnormal genes: A genetic disorder is caused by one more abnormalities within a genome. These abnormal genes can be inherited from your parents or can be a sporadic c... Read More
Created for people with ongoing healthcare needs but benefits everyone.
4.9k viewsAnswered >2 years ago
A 21-year-old member asked:
Dr. Kang Zhanganswered
28 years experience
Bruises or bleeding: Often bruises or bleeding episodes are signs of hemophilia. Blood test can be done by a physician to evaluate for hemophilia if there are concerning s... Read More
Created for people with ongoing healthcare needs but benefits everyone.
4.9k viewsAnswered >2 years ago
A 23-year-old female asked:
Dr. Kang Zhanganswered
28 years experience
Seek medl attention: Yes. This trauma may generate bleeding within the head and increase pressure, giving you headache and dizzy spells. You should go to see a doctor imme... Read More
Created for people with ongoing healthcare needs but benefits everyone.
4.9k viewsReviewed >2 years ago
A 33-year-old member asked:
Dr. Kang Zhanganswered
28 years experience
Cool compresses: Cool compress with cool water on a wash cloth two to three times per day. Keep the head of your bed elevated at night or when you are lying down. As l... Read More
Created for people with ongoing healthcare needs but benefits everyone.
4.9k viewsAnswered >2 years ago
A 36-year-old female asked:
Dr. Kang Zhanganswered
28 years experience
BPV: This sounds like it could be benign positional vertigo. However, it would be difficult to diagnose with certainty without a full exam and evaluation. ... Read More
Created for people with ongoing healthcare needs but benefits everyone.
4.9k viewsAnswered >2 years ago
A 19-year-old female asked:
Dr. Kang Zhanganswered
28 years experience
Stye treatment: Warm compresses 10-15 min long about 2-4 times per day.
Created for people with ongoing healthcare needs but benefits everyone.
4.9k viewsAnswered >2 years ago
A 24-year-old male asked:
Dr. Kang Zhanganswered
28 years experience
Compresses&elevate: I would have to know the specifics of your injury to be certain. However, cool compresses with a cool wash cloth and elevating the head of your bed wh... Read More
Created for people with ongoing healthcare needs but benefits everyone.
4.9k viewsReviewed >2 years ago
A 32-year-old female asked:
Dr. Kang Zhanganswered
28 years experience
Eye evaluation: You should have your eyes evaluated to make sure there is no ocular involvement. You should have close follow up with the physician treating this as w... Read More
Created for people with ongoing healthcare needs but benefits everyone.
4.9k viewsAnswered >2 years ago
A 20-year-old female asked:
Dr. Kang Zhanganswered
28 years experience
Floater or FB: This could be a foreign body under your lid. You should have your eyes checked and your doctor could flip your eyelids to look under to see if somethi... Read More
Created for people with ongoing healthcare needs but benefits everyone.
4.9k viewsAnswered >2 years ago
A 19-year-old female asked:
Dr. Kang Zhanganswered
28 years experience
Many possibilities: If its on the lower eyelid, it could be a style or chalazion. It is best to use warm compresses 2-3 times per day and these usually go away on their o... Read More
Created for people with ongoing healthcare needs but benefits everyone.
4.9k viewsAnswered >2 years ago
A 35-year-old member asked:
I feel shaky have blurred vision and have a stomach ache is this becaus i haven't eaten in 10 hours?
Dr. Kang Zhanganswered
28 years experience
Possibly: Low or high blood sugar can cause visual disturbances such as blurry vision. If you have not eaten in 10 hours or are sick and throwing up, there is a... Read More
Created for people with ongoing healthcare needs but benefits everyone.
4.9k viewsAnswered >2 years ago
A 53-year-old female asked:
Dr. Kang Zhanganswered
28 years experience
Symbicort (budesonide and formoterol): It is also called symbicort (budesonide and formoterol) in the us and is a combination of Budesonide and formoterol. Stridor is a high pitched wheezin... Read More
Created for people with ongoing healthcare needs but benefits everyone.
4.9k viewsAnswered >2 years ago
A 32-year-old female asked:
Dr. Kang Zhanganswered
28 years experience
Is that new?: If it's new and on conjunctiva, it should be hemorrhage, and it will be absorb around 7 to 10 days.
Created for people with ongoing healthcare needs but benefits everyone.
5k viewsReviewed >2 years ago
TestimonialsRecommendations and Thank you notes are endorsements given from patients or other doctors.
Recommendations and Thank you notes are endorsements given from patients or other doctors.
2
Recommendations
42
Thank you notes
HealthTap member
Mar 31, 2015
Dr. Zhang is an amazing doctor! #nationaldoctorsday2015 #virtualflower1
HealthTap member
Mar 31, 2015
Dr. Zhang is an amazing doctor! #nationaldoctorsday2015 #virtualflower1
HealthTap member
Thanks for your quick reply! is it prescribed by doctors in U.S? i.e voriconazole 1% eye drop sol ?
HealthTap member
Thank you for your help very much appreciated. Sincerely Linda
HealthTap member
Thank you, your quick reply made me feel good!
Education & Training
Medical/Graduate school
Harvard Medical School, MA
Graduated 1995MD
Awards
Research Award - California Institute for Regenerative Medicine
Research Award - NIH Director's Transformative R01 Program
Research Award - National Eye Institute
Affiliations
University of California, San Diego Medical Center (UCSD MC)
Shiley Eye Center, University of California, San Diego
Institute of Genomic Medicine, University of California, San Diego
Publications
90,000 U.S. doctors in 147 specialties are here to answer your questions, provide medical advice, write prescriptions, and more.
Answer emailed
in 24 hours or less