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Prestera Eye Medical Group

📍 340 Rancheros Dr Suite 164, San Marcos, CA 92069, United States
[x] Active Centre⭐ 3.6/5 (86 reviews)🕐 8 am-4:30 pm📞 +1 760-598-0400⏱️ 3 min read
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Prestera Eye Medical Group

Eye Care Provider
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340 Rancheros Dr Suite 164, San Marcos, CA 92069, United States San Marcos, California 92069
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www.presteraeye.comOfficial Website
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PIN Code
92069
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Plus Code
4RQV+V3 San Marcos, California, USA
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Timings
8 am-4:30 pm
Verified May 2026
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Prestera Eye Medical Group

📞 +1 760-598-0400
📍 340 Rancheros Dr Suite 164, San Marcos, CA 92069, United States...
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Customer Reviews
3.6
★★★☆☆
86 reviews on Google
5★
53
4★
1
3★
2
2★
4
1★
26
CC
CAT Cook⭐ Local Guide
Feb 18, 2026
★★★★★
I had cataract surgery 3 years ago, not here but only because my insurance changed. I had an irritation in my eye that was operated on, so I made an appointment. My appointment was at 1:30 and they took me at 1:30. What? The office staff was extremely friendly, the office is very clean and nice. I filled out my paperwork and I was brought in immediately. I had my eye test, I was dilated so the ophthalmologist could examine my eyes. I opted for both because why not. Anyhow, he saw what was irritating my left eye which is where I had the surgery, there was a small stitch that was still left in my eye from 3 years ago. He was able to remove it after applying some numbing eye drops. Very nice very friendly. I had Dr Prestera. So glad I found a great eye doctor and if I ever have to have surgery in my other eye I know where to go. Definitely five stars. Very professional, great experience. My husband is going to schedule an eye exam here as well. There's plenty of parking, easy access in and out. Photo of me dilated for laughs lol.
Review photo
C
Chae
Nov 20, 2025
★★★★★
Exceptional Care at Prestera Eye Medical Group The entire staff at Prestera Eye Medical Group is truly exceptional. From the moment you arrive, the team is remarkably attentive and respectful, creating a welcoming and calm environment. It is clear they are highly knowledgeable in their field and genuinely patient with you--a refreshing change from offices that try to rush patients. I had my left eye surgery performed by Dr. Howard Guan, and I am extremely happy with the results. Dr. Guan is an outstanding ophthalmologist who combines a high level of professionalism with remarkable skill. His reputation for having a steady hand is well-deserved, and it instilled great confidence in me before and during the procedure. If you are looking for top-tier eye care and surgical expertise, I highly recommend Dr. Guan and Prestera Eye Medical Group.
JM
Jolie Morris
Oct 08, 2025
★★★☆☆
We are residential care providers for individuals with special needs. Today, we accompanied one of our clients--who lives with mental and intellectual disabilities--to an eye exam with Dr. Howard Guan at Prestera. Unfortunately, the appointment involved an excessive wait of over 90 minutes, not due to medical procedures or patient volume, but primarily due to the doctor engaging in extended personal conversations with co-workers and scrolling on a personal device. During this time, our client became visibly frustrated, pacing the halls and speaking in a raised voice due to the prolonged delay. This behavior was directly related to the wait and the uncertainty about when he would be seen. Our staff located Dr. Guan, who was still engaged in casual conversation, and respectfully reminded him of our client's needs and the extended wait time. Even then, there was an additional delay of 5-10 minutes before our client was finally seen. While we understand that delays can occur in any medical setting, we expect that wait times be the result of attentive patient care--not avoidable socializing. For individuals with special needs, predictability and timely service are crucial. Delays without justification can cause significant distress and behavioral escalation. We hope this concern will be taken seriously and that Prestera's providers will strive to offer more respectful and considerate care moving forward--particularly for those in vulnerable populations.
CY
Chris Yates
Nov 24, 2025
★★★★★
Dr. Prestera and Dr. Guan are excellent providers of eye care. They really listen and take the time to explain. Their professionalism is top notch. Would recommend to anyone!
PW
Phillip Whitehair⭐ Local Guide
Dec 01, 2025
★★★★★
I have no complaints. Normal wait time for an eye appointment, which was around 10 mins. The overall process was easy, timely, and non eventful. Everyone had smiles and seemed nice. I would suggest this optometrist.
DC
Douglas Carter
Jun 25, 2025
★★★★★
Dr Prestera's practice is professional, clean and capable. Services and associated costs are explained in advance. The Dr. is personable, professional and explains findings, treatment options and health expectations clearly. Overall, a pleasurable experience and it created confidence in my treatment plan.
AL
Aimee Lopez⭐ Local Guide
May 30, 2025
★★★★★
Brought my elderly father here. The staff is super kind and works with you on best dates for reservations. My dad speaks only Spanish and 84 yrs and the staff is very patient and kind. Highly recommend and thank you staff for your patience.
LK
Linda K
Jun 23, 2024
★★★★★
Dr. Prestera and his staff are true professionals. I find each person in their office I interact with (front desk, insurance, technicians) to be extremely helpful and thorough in their job functions. I have extreme allergies and they document items thoroughly and try hard to accommodate me without making me uncomfortable. I remember the first time in the office during COVID, there was a person cleaning every little item in the waiting room to all of the patient rooms and staff areas. They were so diligent. I felt safe and cared for, where I would not say the same in other physicians offices. Their focus is on the patient and not their weekend plans, etc. The office is immaculate. Dr. Prestera runs a tight ship! Who else would you want caring for your eye sight! Thank you to the whole team. I know it takes a village to operate as smoothly as you all do on a daily basis.
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📈Quick Comparison: Top Eye Clinics in San Marcos
NameRatingPhoneLink
Prestera Eye Medical Group Current⭐ 3.6 (86)✅ YesView Details
Grand Vision Optometry ⭐ 4.8 (224)✅ YesView Details
Family Eye Health Optometry Center ⭐ 4.9 (177)✅ YesView Details

Comparison based on verified Google Maps data and user reviews.

[?]Frequently Asked Questions
Where is Prestera Eye Medical Group located? +
Prestera Eye Medical Group is at 340 Rancheros Dr Suite 164, San Marcos, CA 92069, United States, San Marcos, California 92069.
What services does Prestera Eye Medical Group offer? +
Prestera Eye Medical Group provides comprehensive eye care including services for this business. Call +1 760-598-0400 for specific service availability.
What are the opening hours of Prestera Eye Medical Group? +
Prestera Eye Medical Group is open 8 am-4:30 pm. Closed on: Saturday, Sunday
Does Prestera Eye Medical Group accept walk-in patients? +
Prestera Eye Medical Group in San Marcos accepts both appointments and walk-ins, though appointments are recommended for specialized services.
What is the average consultation fee at Prestera Eye Medical Group? +
Consultation fees vary by service at Prestera Eye Medical Group. Basic eye exams typically start from $50 to $150 in San Marcos, while specialized treatments and surgeries may cost more.
Is Prestera Eye Medical Group equipped for emergency eye care? +
Prestera Eye Medical Group provides emergency eye care services for conditions like eye injuries, sudden vision loss, or severe eye pain during operating hours.

About Prestera Eye Medical Group

Situated in San Marcos, CA, Prestera Eye Medical Group has been providing top-quality ophthalmology services for over two decades. Led by experienced eye doctors Tory Prestera M.D. Ph.D., and Kevin J. Garff M.D., the talented team offers cataract surgery, pterygium surgery, retinal disease treatment, corneal care, glaucoma management, comprehensive eye exams, and more--always with a patient-centered approach. Contact Prestera Eye Medical Group today to schedule an appointment or learn more about what makes the practice a premier choice for eye care in San Diego.

How to Get Help at Prestera Eye Medical Group

To visit Prestera Eye Medical Group in San Marcos, call +1 760-598-0400 to schedule an appointment or walk in during business hours. Bring your medical history and any current eyeglasses or contact lenses.

Why Choose a Verified Eye Clinic in San Marcos?

Choosing a verified eye clinic like Prestera Eye Medical Group in San Marcos ensures you receive professional care from qualified specialists using modern equipment and approved treatment methods.

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🗺️Location
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🕐Opening Hours
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Monday8 am-4:30 pm
Tuesday8 am-4:30 pm
Wednesday8 am-4:30 pm
Thursday8 am-4:30 pm
Friday8 am-4:30 pm
SaturdayClosed
SundayClosed
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Verified Eye Clinic Listing This listing has been verified for accuracy of contact details, professional credentials, and active operation status.
Registry Code: GBP-VET Last Vetted: May 2026

Google Place ID: ChIJnyRuMBN13IARydQpoepXdog