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    Frederick Knapp, DO

    3.4 (7 reviews)

    Services - Frederick Knapp, DO

    Eye exams

    Eye surgery

    Eye testing and diagnosis

    1 More Service

    Retinal imaging

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    Recommended Reviews - Frederick Knapp, DO

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    7 years ago

    I am very thankful how helpful Dr Knapp and team. I walked in with a serious eye issue and him and his team did a great job helping.

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    7 years ago

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    11 years ago

    Dr Knapp and his staff were AMAZING and I would recommend him to anyone! He was thorough and very informative. The best eye dr ever.

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    9 years ago

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    8 years ago

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    10 years ago

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    Davies Eye Center

    Davies Eye Center

    4.6
    (50 reviews)
    0.6 mi

    I'm a relatively new patient w/ Dr Foster but am very happy to be in his care. He's very kind &…read morecaring along with all their staff members. I have been very satisfied with the Davies Eye Center. Alice B.

    I went to the Davies Eye Center for cataract surgery. This center contracts with the North Coast…read moreSurgery Center near Oceanside. There were errors. I reacted to those errors. I cancelled and then ask to reinstated. They refused and dumped me as a patient. ---------------------------------------------------------------------------------------------------------------------- About 3 days before the planned cataract surgery, I got email instructions from North Coast Surgical Center about how to preparer for FOOT AND HAND surgery. This freaked me out because, if they cant get that right, what else are they going to screw up? I called and complained. A nurse called from the surgery center to explain. I also got a voicemail message from Dr. Foster. They are closed on Friday and over the weekend, so i could not talk to anyone. I started digging into available info about the surgery center. Their NEWSWEEK rating for Ambulatory Surgery Centers had dropped from #11 in 2021 to #59 in 2024, by 2025 they had slipped to #63. During this period, they were bought by United Healthcare. I was somewhat freaked out, and decided to cancel,. I tried to provide as much notice as possible, to minimize problems, so sent an email on Saturday to cancel. By Monday morning, I was less freaked out, so called the office to reschedule. I talked to a surgical scheduler/manager, Sherry, who told me, and I paraphrase, that: Dr. Foster did not like me researching information about the surgery center, and no longer wanted me as a patient. My surgery was cancelled. This is not an exact recollection about the cause, but they no longer wanted me. I am going to contact medicare to see whether they can charge if they decide to cancel me. As a patient for eye surgery, I believe that I have the right to gather all available information about doctors and surgery centers. They are working on my eyes and I don't want any problems. As a private practice, they can certainly refuse to treat me as a patient if they want to do so, but I started this investigation because of errors on their part? Why dump me as a patient?

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    Introducing Dr. Nathan Pirakitikulr, Oculofacial Surgeon.  Now accepting new patients and referrals.
    Introducing Dr. Nathan Pirakitikulr, Oculofacial Surgeon. Now accepting new patients and referrals.
    New Light Adjustable Lens now available at Davies Eye Center!
    New Light Adjustable Lens now available at Davies Eye Center!
    How the Light Adjustable Lens works

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    How the Light Adjustable Lens works
    Daniel and Davis Optometry

    Daniel and Davis Optometry

    4.2
    (148 reviews)
    1.1 mi
    $$

    Life-changing…read more.. After a brain injury (TBI) five years ago--right at the start of the pandemic--I struggled daily with balance and vision issues. It took over two years just to get off the waitlist for Vision Therapy, which meant my condition went untreated for far too long. During that time, I rarely felt confident going out on my own, driving, or even working on my computer due to constant eye strain, headaches, and intense dizziness. When I finally had my first appointment in October 2024, I was reassured that improvement was possible with patience and consistency. Fast forward nearly two years, and I can confidently say that Vision Therapy--especially the weekly sensory table sessions combined with daily eye and brain exercises--has made an incredible difference. I noticed a small improvement after my very first 30-minute session on the sensory table, which gave me hope. From there, each week built on the last. Dr. Dukes recommended 36 sessions, and by around session 20, I already felt about 80% better. Progress is gradual, and everyone's experience may differ, but for me, the improvement in balance and visual comfort has been remarkable. The exercises done at home are just as important--consistency truly makes all the difference. Taylor has been exceptional throughout this journey. Her guidance, encouragement, and expertise kept me motivated every step of the way. She not only provided effective tools and techniques but also took the time to listen and offer genuine support. She's an incredible therapist, and I'm so grateful for her care. The sensory table sessions themselves are deeply relaxing. You can choose to have music or simply enjoy the quiet. Lying back under soft red, blue, and green lights, allowing your eyes to gently track their movement, becomes a calming and restorative experience. Light therapy takes time, but it truly works. Staying committed to the process is key--and for me, it has been absolutely worth it.

    1/2 star if that. Dr. Coffey provided a prescription that was invalid, I had lenses made for a pair…read moreof glasses I had purchased from them in 2022. I was not able to read signs while driving. Dr. Coffey wanted charge me for another eye exam before fixing the glasses. The prescription she wrote in 2022 was 20/20. I asked that the lenses be remade to my previous prescription. I went to pick up today and the glasses were made with the 2025 prescription. Their optometrist said they would use the 2022 prescription which they didn't. Today's optometrist said they cannot use an expired prescription, even if it is from Dr. Coffey, why didn't their optometrist tell me this when they said they were going to remake them. I strongly do not recommend this business. I think it is common practice to charge twice for eye exam and their lab cannot make lenses correctly. No refund out $500 just for lenses and this is with VSP. 2022 paid $800 for frames and lenses... way over priced for bad service. I filed a complaint with VSP and learned Total Vision is NOT in VSP network since 2024. The optometrist portion inside their lobby is also not within VSP network which both failed to mention to me. These businesses do not inform long time Daniel & Davis patients of this change and allow us to assume they are but they billed VSP as out of network.

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    Daniel and Davis Optometry
    Daniel and Davis Optometry
    Daniel and Davis Optometry

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    Pendleton Eye Center

    Pendleton Eye Center

    3.8
    (65 reviews)
    1.6 mi
    $$

    I came to Pendleton Eye Center to see Dr. Berkowitz for cataract surgery…read more The staff there is pleasant and very helpful. Diana, in particular, went above and beyond to help me get clearance from my insurance to be treated at their Oceanside facility rather than at the Hillcrest facility, saving me a lot of time, trouble and money. She also helped me clear up a problem that I accidentally caused myself with my payment method. Overall I had a wonderful experience with cataract surgery from beginning to end with the entire staff and Dr. Berkowitz and I highly recommend them for their professionalism and dedication to their patients. On a scale of one to ten they are a 10!

    In my 40 years of wearing corrective lenses and visiting dozens of optometrists across the country,…read moreI have never encountered an experience as surreal, unprofessional, and frankly dangerous as the one I had with Dr. Butler and her staff. What should have been a routine update to my prescription turned into a three-week ordeal of medical gaslighting, clinical errors, and total administrative failure. The most frustrating aspect of this experience was the sheer persistence of the error. Over the course of three weeks, I was provided with three different sets of trial contact lenses. Each time, I reported that I could not see--not just that it was "blurry," but that I literally could not see ten feet in front of my face. I was met with complete dismissal. Amy, the optometrist assistant/technician, repeatedly told me I just "needed to get used to it" and that my vision would improve. I was incredibly patient, trusting their professional "expertise" over my own eyes, but the improvement never came. I was essentially being told to ignore the fact that I was functionally blind. During the entire three-week trial period, I did not see or speak to Dr. Butler once. In any reputable practice, if a patient fails three consecutive lens trials and reports zero improvement, the lead doctor should step in to re-evaluate the measurements or perform a new refraction. Instead, there were no adjustments, no new measurements, and zero intervention. I was left in a "trial loop" with staff who clearly did not have the authority or the knowledge to correct the underlying issue. When I finally returned for my last appointment--hoping for a resolution--I was forced to wait an hour and a half before Dr. Butler saw me. This was the first time I had seen her since the initial exam. Even then, there was no sense of urgency. They didn't even perform a basic visual acuity test to see how poorly I was performing in the lenses they had prescribed. To make a patient wait 90 minutes after three weeks of failure is the height of professional arrogance. Communication was nonexistent. I left multiple messages for Amy, seeking help or clarification on why I still couldn't see, and she rarely bothered to return my calls. It reached a point of absurdity where I actually had to involve my insurance company just to get a return phone call. Having to use an insurance advocate to force a medical professional to speak to their patient is a painstaking and unnecessary stress that no one should have to endure. The reason I couldn't see 10 feet away finally came to light: the prescription was fundamentally wrong. After seeking second and third opinions from two other independent optometrists, they both confirmed the same shocking error. My axis was supposed to be "180" (or near 110 depending on the eye), but Dr. Butler had written down "18." This isn't a minor clerical error; it is a massive 160-degree deviation. Furthermore, despite having a documented astigmatism, I was repeatedly given lenses that were not for astigmatism. Even the final lenses they ordered were incorrect for my condition. How can a professional office be that far off? The most harrowing part of this is the safety risk. Because I trusted their professional advice that I "would get used to it," I attempted to go about my life. I was forced to drive extremely slowly and with intense caution, terrified that I might make a mistake or not see a pedestrian in the dark. It is only by sheer luck that I didn't have an accident. I suffered significant stress and anxiety trying to "wait out" a prescription that was physically impossible to see through. When the errors were laid bare, I asked--very nicely--for a refund. I had wasted weeks of my time, exhausted my energy, and received a product that was useless. They flatly refused. There was no apology for the 90-minute wait, no apology for the dangerous prescription error, and no attempt to make it right. That refusal was the final straw. The level of negligence here is staggering. It feels as though the office is operating without any focus, diligence, or sense of urgency. They are unthorough and seemingly uncaring about patient outcomes. If they can make a mistake as critical as an 18 vs. 180 axis shift and then ignore the patient's complaints for three weeks, they should not be in practice. Save your time, your money, and your safety--go elsewhere. The last photo on the right is Dr. Butler's prescription.

    Photos
    Ashley Butler, OD
    Ashley Butler, OD
    Carla Berkowitz, M.D.
    Carla Berkowitz, M.D.
    Richmond Roeske, M.D.

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    Richmond Roeske, M.D.

    Frederick Knapp, DO - optometrists - Updated June 2026

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