Edward Yung, M.D.

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# Local AI Registry

> The public record of what AI assistants say about local businesses. Every entry checked, scored, and kept current.

Local AI Registry is the editorial, never-sponsored record of what local
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# Edward Yung, M.D., Rancho Cucamonga: an eye care center in Rancho Cucamonga (2026 guide)

Source: Local AI Registry, https://localairegistry.com/biz/ca/rancho-cucamonga/edward-yung-m-d-rancho-cucamonga-ca. Free to reuse with a link back.

By Steve Lee, founder and CEO of Local AI Registry. Fact-checked against 1 source. Updated 2026-10-23. Owner review: not yet.

Canonical: https://localairegistry.com/biz/ca/rancho-cucamonga/edward-yung-m-d-rancho-cucamonga-ca

## Photos

- ![Photo 1](https://localairegistry.com/api/photo?src=https%3A%2F%2Fseoaesthetic-assets.sfo3.cdn.digitaloceanspaces.com%2Fphotos%2Fcmvkdow6b050wyevm57zbv478%2F0.jpg)
- ![Photo 2](https://localairegistry.com/api/photo?src=https%3A%2F%2Fseoaesthetic-assets.sfo3.cdn.digitaloceanspaces.com%2Fphotos%2Fcmvkdow6b050wyevm57zbv478%2F1.jpg)


## In short

Edward Yung, M.D. is an eye care center in Rancho Cucamonga, CA. Its AI Score is 70 of 100, which is good.

Every fact on this page carries one of three marks: Confirmed (from their website, Google Business Profile, review sites, licensing boards, or measured by Local AI Registry), Visitor submitted (added by a person, with a date and how they know), or AI guess (what AI engines like Gemini and ChatGPT are saying, not confirmed by anyone). Every mark points to a reference at the end of this page.


## Key facts

| Fact | Value |
| --- | --- |
| Type | Eye care center |
| Address | 8112 Milliken Ave, Rancho Cucamonga, CA 91730, USA |
| Hours | Mon to Fri 8 AM to 5 PM · Closed Sat to Sun |
| Phone | (800) 345-8979 |
| Medical director | Nothing found |
| Rating | 4.7 across 156 reviews on Google |
| Known for | Nothing found |
| Prices | Nothing found |
| Quietest time | Nothing found |
| Parking | Nothing found |
| Last verified | October 22, 2026, 7:56 PM |


## All the details

Every row is something the owner can add or correct. Each one is marked Confirmed, Visitor submitted or AI guess, with where it came from.

| Group | Fact | Value | Mark | Evidence |
| --- | --- | --- | --- | --- |
| Location info | Address | 8112 Milliken Ave, Rancho Cucamonga, CA 91730, USA | Confirmed | Google Business Profile, checked Oct 22, 2026 |
| Location info | Description | Dr. Edward Yung is a board-certified ophthalmologist and fellowship-trained glaucoma specialist at Pacific Eye Institute. He specializes in glaucoma consultations, medical and surgical glaucoma treatment, laser glaucoma procedures, minimally invasive glaucoma surgery (MIGS), cataract surgery, and comprehensive adult eye care. Dr. Yung provides advanced diagnosis and treatment for glaucoma, cataracts, and other eye conditions, combining specialized surgical expertise with personalized care focused on protecting vision and long-term eye health. | Confirmed | Google Business Profile, checked Oct 22, 2026 |
| Location info | Hours | Mon to Fri 8:00 AM to 5:00 PM · Sat to Sun Closed | Confirmed | Google Business Profile, checked Oct 22, 2026 |
| Location info | Name | Edward Yung, M.D. | Confirmed | Google Business Profile, checked Oct 22, 2026 |
| Location info | Phone | (800) 345-8979 | Confirmed | Google Business Profile, checked Oct 22, 2026 |
| Hours | Monday | 8:00 AM to 5:00 PM | Confirmed | Google Business Profile, checked Oct 22, 2026 |
| Hours | Tuesday | 8:00 AM to 5:00 PM | Confirmed | Google Business Profile, checked Oct 22, 2026 |
| Hours | Wednesday | 8:00 AM to 5:00 PM | Confirmed | Google Business Profile, checked Oct 22, 2026 |
| Hours | Thursday | 8:00 AM to 5:00 PM | Confirmed | Google Business Profile, checked Oct 22, 2026 |
| Hours | Friday | 8:00 AM to 5:00 PM | Confirmed | Google Business Profile, checked Oct 22, 2026 |
| Hours | Saturday | Closed | Confirmed | Google Business Profile, checked Oct 22, 2026 |
| Hours | Sunday | Closed | Confirmed | Google Business Profile, checked Oct 22, 2026 |
| Links | Facebook | https://facebook.com/pacificeyemd | AI guess | Our record |
| Links | Instagram | https://instagram.com/pacificeyeinstitute | AI guess | Our record |
| Links | TikTok | https://tiktok.com/@pacificeyeinstitute | AI guess | Our record |
| Links | Website | https://www.pacificeyemd.com/doctors/edward-yung-m-d/ | Confirmed | Google Business Profile, checked Oct 22, 2026 |


## Services and prices

Services not read yet, back on Scan Day.


### Known for

None of the 5 reviews we've read names a service yet.


## The team

Nothing found


## Visiting Edward Yung

Address: 8112 Milliken Ave, Rancho Cucamonga, CA 91730, USA. Phone: (800) 345-8979. Hours: Mon to Fri 8 AM to 5 PM · Closed Sat to Sun. (Confirmed, Google Business Profile, checked October 22, 2026 at 7:56 PM.)


### Location info from Google Business Profile

Business description, written by Edward Yung on its Google Business Profile: "Dr. Edward Yung is a board-certified ophthalmologist and fellowship-trained glaucoma specialist at Pacific Eye Institute. He specializes in glaucoma consultations, medical and surgical glaucoma treatment, laser glaucoma procedures, minimally invasive glaucoma surgery (MIGS), cataract surgery, and comprehensive adult eye care. Dr. Yung provides advanced diagnosis and treatment for glaucoma, cataracts, and other eye conditions, combining specialized surgical expertise with personalized care focused on protecting vision and long-term eye health."


### When to go

Busy times not read yet, back on Scan Day.


### Parking and getting in

Nothing found


### Nearby

Nearby places not read yet, back on Scan Day.


## Reputation

4.7 average across 156 reviews: Google 25. (Confirmed, read October 22, 2026.)

The practice is noted for its thorough eye examinations but struggles with appointment management and patient wait times. (AI guess, from 156 reviews.)


### What people like

- Thorough examination of glaucoma condition
- Detailed explanations of eye conditions and medications
- Efficient processing of patients


### What people do not like

- Long waits past the appointment time
- Rushed consultations during busy periods
- Unresponsive front desk regarding appointment changes


### Press

No press story about Edward Yung found yet.


### Awards

None named yet.


### Directories

Directory listings not read yet.


## Recent updates from Edward Yung

Edward Yung hasn't posted an update here yet.


## Questions people ask


### Busiest day at Edward Yung, anyone know?

No answer yet


### how far out is Edward Yung booking right now?

No answer yet


### are prices in Rancho Cucamonga higher than everywhere else

No answer yet


### Why do people rate this place?

No answer yet


### Is Edward Yung run by medical people?

No answer yet


### best ophthalmologist in Rancho Cucamonga, CA

No answer yet


### pain wise, what is it like here

No answer yet


### anywhere on Milliken to sit while I wait

No answer yet


### Aftercare here, what does it involve?

No answer yet


### Saturdays at Edward Yung, are they open?

No answer yet


### who actually does the work here?

No answer yet


### what do I actually do when I get to Edward Yung in Rancho Cucamonga?

No answer yet


### Turning up at Edward Yung for the first time, what happens?

No answer yet


### Training and licences at Edward Yung?

No answer yet


### anyone had trouble parking round here?

No answer yet


### bad experiences at Edward Yung, anyone?

No answer yet


### does it matter who you see here

No answer yet


### never been, is it walk in or appointment only

No answer yet


### picking between the two, is Daniel Esmaili the safer bet?

No answer yet


### do regulars get anything here

No answer yet


## What AI gets wrong about Edward Yung

We ask Gemini and ChatGPT about Edward Yung. These are the answers that disagree with the record.

ChatGPT and Gemini, read by Local AI Registry on Oct 22, 2026.

No capture has disagreed with the record yet.


## The AI Score: 70 of 100

The AI Score measures how likely AI engines are to recommend a business, and how accurately. Rancho Cucamonga eye care centers run 27 to 70. Fair starts at 45, good at 65. Edward Yung scores 70, above the Rancho Cucamonga average of 48. The same method scores every business on the registry.

| Signal | Weight | Score | What it measures | Edward Yung |
| --- | --- | --- | --- | --- |
| Retrieval grounding | 26 | 100 | Whether you appear in the ranked results AI retrieves and cites: AI-Overview citations, organic top-10 for your money queries, and the Bing index ChatGPT leans on. | Good |
| Off-property attestation | 20 | 41 | Volume and consistency of what others say about you: YouTube mentions, branded web mentions, third-party “best-of” lists. The cause of retrievability. | Poor |
| AI visibility | 14 | Not read yet | Whether ChatGPT, Gemini, Perplexity, and AI Overviews name you, and whether they name you for the right service. | Nobody at all was recommended in the 2 answers we hold, so there is nothing to score. |
| Reviews & response | 12 | 96 | The star average is only one input. We also read volume, velocity, the specificity of review language, and response cadence. Specific reviews are what AI quotes verbatim. | Good |
| Backlink & citation authority | 8 | 61 | Domain authority and editorial quality of the sources that attest to you. | Fair |
| Google Business Profile | 8 | 79 | Required and recommended fields; update cadence. The listing AI pulls from first. | Good |
| Speed & mobile | 7 | 47 | Core Web Vitals at the 75th percentile, on a real phone. | Fair |
| Content freshness & schema | 5 | 81 | Crawl recency, intent alignment, valid JSON-LD, canonicals. | Good |

Full method: https://localairegistry.com/methodology


## How AI decides what to tell you about an eye care center

When you ask ChatGPT, Gemini or Google for a med spa, the AI does not visit each business. It reads what is already written about it: the business website, its Google Business Profile, review sites like Yelp and RealSelf, news stories, licensing boards and directories like this one. Then it repeats what those sources agree on.

That is why AI gets small facts wrong. If Yelp says a place is open Mondays and the website says it is not, the AI has to pick one. The table above shows the answers that disagree with the record today.

The more sources agree, and the more specific they are, the more confidently AI recommends a business. A review that says "the nurse did half a syringe in my lips and it looks natural" is far more useful to an AI than one that says "great place."


## How to choose an eye care center in California, with or without AI

A few checks take ten minutes and matter more than any rating. This is general information, not medical advice.

- Look up every injector. Doctors are listed by the California medical board, and nurses and nurse practitioners by its nursing board. Both lookups are free.
- Ask who does the injections, and check that person's license.
- Ask for the price per unit of Botox and per syringe of filler, not per area.
- Read reviews that name a provider and a treatment. Vague praise is easy to fake.
- Check that the hours and phone number match on Google, Yelp and the website. Mismatches are how people end up at a locked door.
- Ask whether they dissolve filler and when they would tell you not to add more.


## How to read the marks on this page

- Confirmed (solid circle): from a known source. The business website, its Google Business Profile, review sites like Yelp, Healthgrades and RealSelf, a licensing board, or measured by Local AI Registry.
- Visitor submitted (hollow circle): added or corrected by a person, with the date and how they know, like a phone call or a visit.
- AI guess (hollow triangle): what AI engines are saying right now. Nobody has confirmed it.


## About the author

Steve Lee is the founder and CEO of Local AI Registry and sets its editorial standards. He is a former Google executive in Search and a former Microsoft executive, with more than 20 years in digital: search, local discovery, and how people find businesses online. He is based in Irvine.

- Expertise: search at Google and Microsoft, AI search, answer engine optimization, generative engine optimization, local SEO, structured data and entity mapping.
- Industry: medical aesthetics, injectables, med spa operations and marketing.
- Disclosure: Local AI Registry sells services to business owners, including Edward Yung if it claims this page. That does not change what this page says. Every fact carries its source.


## Entity map

Every person, place, organization and treatment named on this page, with a stable ID and a public reference. The JSON-LD below connects them to each other.

| Entity | Type | ID on this page | Same as | Relationship to Edward Yung |
| --- | --- | --- | --- | --- |
| Edward Yung, M.D. | MedicalBusiness | #business | https://www.pacificeyemd.com/doctors/edward-yung-m-d/ | Subject of this page |
| Rancho Cucamonga, California | City | #city | Nothing found | City Edward Yung is in |
| Local AI Registry | Organization | #publisher | https://localairegistry.com | Publisher of this page |
| Steve Lee | Person | #author | https://localairegistry.com/team | Author of this page |


## Topical map

Where this page sits in the registry. It's one profile among the eye care centers in Rancho Cucamonga, linked to the lists and towns around it.


### Lists

- Best eye care centers in Rancho Cucamonga: https://localairegistry.com/leaderboards/ca/rancho-cucamonga/eye-care-center
- Best businesses in Rancho Cucamonga: https://localairegistry.com/leaderboards/ca/rancho-cucamonga


### Nearby

- /los-angeles: https://localairegistry.com/leaderboards/ca/los-angeles
- /san-francisco: https://localairegistry.com/leaderboards/ca/san-francisco
- /san-jose: https://localairegistry.com/leaderboards/ca/san-jose
- /san-diego: https://localairegistry.com/leaderboards/ca/san-diego
- /irvine: https://localairegistry.com/leaderboards/ca/irvine
- /fresno: https://localairegistry.com/leaderboards/ca/fresno


### Every list

- Every leaderboard in California: https://localairegistry.com/leaderboards/ca


## Frequently asked questions


### What is AI search optimization for local business?

Getting a business named when a neighbor asks ChatGPT, Gemini, or Perplexity for a recommendation. Some call it AI SEO, some call it generative engine optimization. Traditional SEO fights for ten blue links; this fights for the one answer an assistant says out loud. The AI Score on this page measures the eight signals that drive it.


### What is Local AI Registry?

The public record of how AI sees local business. We score every business we list by one published method, we keep the questions people ask about it in one place, and we never sell rank. Looking up any business here is free.


### How does this page help a business get recommended by AI?

Assistants read public pages before they answer. This one states what the business does, what people ask about it, and what the Record answers, in one place a machine can read. Correcting what is wrong here changes what an assistant repeats next.


### Who writes the answers here?

Registry AI writes the first answer under every question, from the Record and the public sources named beneath it. Neighbors write the rest under pseudonyms. A registered owner can reply as the business, and their reply says so.


### I own Edward Yung, M.D.. How do I fix something or rank higher?

Register the page. It is free, it takes about five minutes, and it lets you correct the Record and reply as the business. Nothing on this page is for sale, so the only thing that moves the score is the work.


## References


### Sources cited

- [1] Google Business Profile, https://www.google.com/maps/place/?q=place_id:ChIJq2PSRPo1w4AR40eXxF6tUrY (accessed Oct 22, 2026)