Dao Khanh V, OD

I’ve been going to Dr. Dao for a couple of years. Making an appointment is easy, the hours are great, the cost is quite reasonable and Dr. Dao is very pleasant to deal with. The eye center is just as great. I’d recommend it.

Very quick and easy!
He’s extremely nice and to the point. Awesome assistant, she called me on my phone when I was ready for my check up while shopping around Costco!
My only concern is how it can be uncomfortable due to the small area.

I needed to renew my prescription for a new year of contacts supplies. I decided to come to Costco to have my eyes examined and ordered my contacts directly through Costco themselves. Getting an appointment with them was easy, just a quick phone call away. Mind you, I came to see Dr. Khanh in November 2014. Some of you might think, it’s been a year now, why write a bad review now? You will see…
So I went in to see Dr. Khanh, he did his usual routine check-​up on me and asked if I had any problem with the contacts I was wearing (Acuvue Oasys). I explained to him during allergy season, the corner of my eye does itch. I wasn’t sure if the contacts are aggravating it, enhancing the symptoms. He told me Acuvue has a sticky texture, it traps dust more than any other brands of contacts. He continued to sell me on this other brand (Biofinity, 2 weeks disposable), selling me how it’s popular in the market, I should give it a try. Given this optometrist is giving such rave reviews on this new brand of contacts, I decided to just go for it… nothing a professional «doctor» recommends could go wrong right?
WRONG! WRONG! WRONG! About a few months in, my eye gets really irritated to the point it keeps getting red. It always felt like something is in my eye so I would constantly check it to see if in deed I might have an eye lash or something. I never could find anything. On top of that, my vision begin to get blurry. Even with rewetting eye drops, my vision would only stay clear for about 2 minutes and then it gets blurry again. On certain days, my eye would hurt so much that it feels like a piece of glass is cutting into my eye, I would be forced to take off my contacts. If I don’t wear the contacts, everything feels normal. I kept thinking to myself that maybe it’s because of the way I care for my contacts? I am guilty of sleeping in my contacts once in a while, but I never had a reaction this severe until I tried this new brand of contacts.
I tried to tough through the pain and inconvenience. I continued to wear the contacts (whenever my eyes allow me to) for a total of 7 months until my friends and family urged me to see a specialist. In June 2015, I decided to go into an eye doctor to check on my eye health. After examination and checking on the original prescription that Dr. Khanh had written me back in November. My new doctor had concluded Biofinity was a complete bad fit for my eyes. She didn’t understand why an optometrist would recommend me to wear that contacts brand. Because it was a bad fit, the contact was constantly rubbing against the inside of my eyelid, the friction had caused a sizable bump (hence feeling like I had something in my eye). It was so severe, mucus was leaking from the bump (hence the blurry vision). Both of my eyes were affected, but my left eye took a major hit.
Because of this damage, wearing any 2 weeks disposable contacts is out of the question. Because my eyes had been damaged, the scar under my eyelid would easily be triggered. I had to stop wearing contacts for two months in order for the wound to heal. Even after it healed, I am no longer allowed to wear contacts for more than 8 hours a day. I am still under surveillance to make sure I can «ever» wear contacts again. I am currently on trial basis to see if my eye would react negatively. I went from spending ~$ 250 for a year of 2-​week disposable contacts to $ 800 for a year of 1-​day disposable contacts (in hopes a fresh pair of quality contacts under 8 hours a day wouldn’t aggravate my forever healing wound). Not to mention since I’ve been under treatment since June 2015, the additional medical expense I had to pay all because I wore the recommended brand by Dr. Khanh.
I don’t know what went wrong, all I know is I’m now stuck with a sensitive eye that doesn’t likes contacts any more and frequent check-​ups (every 2 weeks) with my eye doctor. In my condition, I am looking at wearing contacts for a limited number of hours per day, eye drop medication twice a day for an unseen amount of time in my future or the next option is lasik.
In addition, I ordered a pair of glasses at the same time I ordered the Biofinity contacts in November. Every time I wear the glasses, I always end up with dizziness and eye exhaustion. Turns out Costco prescribed my lens stronger than what I needed. Did Dr. Khanh wrote the wrong glasses prescription or did Costco glasses department read it wrong and took a leap of faith thinking I needed a stronger lens? Who knows. One thing I do know is bad fitting contacts AND wrong prescribed glasses? Definitely not returning.

Ive been coming to Dr. Khanh for the past 4 years. Always thorough, patient and answers all your questions. I bring my parents here too, no complaints.

Diane, the receptionist, is very nice and professional. She knows how to get things done and explains things very clearly.
Dr. Dao is a great optometrist! It was my first time getting contact lens, and Dr. Dao gave me some great contacts and the correct vision prescription. He also gave me solution and coupons to buy solution and rewetting drops. He has a lot of patience and is kind and answers all your questions. My sister likes him as well.
Would recommend this office! I’d also recommend you make an appointment before you go in but walk ins are also allowed.

The last time I had an eye exam was in 2009 because I simply could not afford it, I know how embarrassing! I was very pleased with my eye exam and the price!!! $ 54 for an eye exam? Then I walked a few feet to the optical dept at Costco. I only paid $ 259 for my frames, progressive lenses, transitions, and hi index polycarbonate lens!!! So very reasonable for everything!!!
Last time I had my eyes examined somewhere else I paid almost $ 900 for the same exact things that I wanted!!!
I will be most definitely be coming back here again!!!

Jessica is a wonderful optometrist. I love coming to see her. I highly recommend coming here to get your eyes checked in getting your contacts.
She is very patient and very kind. She explains all the options and even help me put on my contacts in my eyes when I couldn’t do it myself.

I have been to Dr. Dao twice over the last couple of years, for reading glasses. Very thorough exams. I can see clearly again when reading! The frame selection right outside Dr. Dao’s office there at the South San Francisco Costco is really decent, the prices are good, and the turn-​around time is quick. All in all an excellent value.

Dr. Khanh is really nice, very professional and provides excellent eye care. This was my second visit. I feel very comfortable here. The receptionist is kind and friendly. They are just a really nice team. It’s great when you have to do something and you get to have a good experience. I’m glad I found them.

Unbelievably efficient and comprehensive. Two thumbs up for Dr. Dao and his assistant, Diana. Cheers. :)

I’ve been coming here for many years and I finally decided to write a review.
The eye exam are very thorough and quick. I usually don’t have to wait longer than 5 minutes before the doctor is ready to see me. Dr. Dao and Dr. Lee are both very nice. They make me feel very comfortable during my visit.
The price for the eye exam was $ 89. VSP considers Dr. Dao out-​of-​network so, it only covers $ 36 of the exam, but I don’t mind paying the difference since the office is located is located inside Costco and its convenient for me to pick up my contacts and order eye prescription glasses.
The only walk-​ins if their not busy.

I usually don’t write bad reviews but after the experience I had here it was beyond ridiculous. I had set up a appointment for saturday at 11:15 and the office was not busy. The receptionist had told us that we would be been shortly after she had done the estimation. We waited for over half an hour while other patients were seen waiting patiently in the waiting room. We asked the receptionist about how long because I had another appointment scheduled at 1245 and was not expecting such a long wait. The receptionist told us in a few minutes, fifteen minutes later I was upset and did not want to wait any longer. We finally left the office almost at twelve without seeing the doctor, an hour of my life was wasted and I was late to my other appointment. Will never return to this costco location again, the service was slow and unbelievably rude.

Dr. Khanh and his assistant were great! Fast, friendly and kind. I was impressed with the up to date equipment and his knowledge.

Honestly best optometrist I’ve been to in years. Awesome little gadgets to get an idea of your prescription before you walk into his office. Timely, quick, kind, and goes above and beyond to explain what’s going on with your eyes. And I got a free pair of contacts on my way out. awesome! Highly recommend coming here.

Dr. Dao was so gentle and kind when I went in for my eye test a couple of months ago. Because my eyes are so sensitive to being touched or anything pointed near them he was very patient with me.
I must also praise his loyal and efficient assistant as she went far beyond her normal duties to help me complete my insurance claim form.
Excellent in every possible way and very nice!

I havent been to an eye doctor in a few years til this visit. My eye doctor growing up had very old equipment (probably from the 1960’s) and the one I went to a few years ago was similar. Dr. Dao has modern equipment and we were in and out in no time at all. Plus it was very convenient being inside a Costco. I have crappy insurance from work (Spectera) and he is one of the few decent eye doctors that takes it. Because of his modern equipment and convenience, I will be making him our regular eye doctor from now on.