Eye Doctor Monterey Park California Lily Chung, OD


Affordable Designer Frames and Designer Sunglasses


Contact Lenses


Corneal Refractive Therapy (CRT)



Dr. Lily Chung
Tel: (626) 458-2020 | Map It

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Examination Technology
Pascal Tonometry


 The PASCAL Dynamic Contour Tonometer (DCT) is a digital contact tonometer for ophthalmological applications.


 PASCAL offers valuable clinical benefits:
Unlike applanation tonometers, which are influenced by corneal thickness and other characteristics of the cornea, and hence may produce misleading estimates of IOP, the PASCAL provides an accurate, direct measurement of true IOP which is independent of inter-individual variations in corneal properties and biomechanics.

IOP measurement is accurate even on post-LASIK and keratoconic eyes.

PASCAL detects and accurately measures the dynamic fluctuations in IOP and thus permits a more detailed assessment of the pressure range to which the eye is subjected due to pulsatile ocular blood flow.

A disposable silicone tip cover prevents cross contamination and greatly reduces the likelihood of corneal abrasion, even with an inexperienced user.

Convenient documentation and visualization of numerical results and of IOP curves is possible with the optional wireless printer or PASCAL DataWizard PC software.


 Marco 3-D Wave ARK 10000

The Marco 3-D Wave ARK 10000 combines three advanced technologies plus wavefront analysis, in one easy-to-use refractive diagnostic workstation. With the Marco 3-D Wave a practice can obtain refraction, corneal topography, optical path difference (OPD) and wavefront analysis. The Marco 3-D Wave allows the user to evaluate a patient comprehensively, perform refractive and cataract surgery screenings, evaluate postoperative complaints, and determine pathology diagnoses. In short, the Marco 3-D Wave gives outstanding vision diagnostic capabilities that in the past were simply unavailable.


With the remarkable Marco 3-D Wave, Marco gives you an instrument that can evaluate the patient’s total optical system. Measuring both low and high-order aberrations on a single axis, the Marco 3-D Wave gives you the power to diagnose patient complaints that simply would not be diagnosed before.


Marco 3-D Wavefront Analysis For True Vision Diagnostics:

Optical Path Difference (OPD)
Wavefront High-Order
Wavefront Total
Eye Image Displaying Mesopic and Photopic Pupils
Internal OPD
Refractive Maps
Point Spread Function




Marco 3-D Wave (ARK 10000) Applications:

Evaluating all eyes not correctable to 20/20
Differentiating corneal from lenticular aberrations
Comparing objective to subjective point spread function (PSF)
Assessing cataract patients’ symptoms and “quality” of vision
Pre- and post-posterior capsular opacification (PCO) effects
Evaluating post-op IOL tilt, decentration, multifocal optics
Assessing contact-lens candidates for soft- versus hard-lens wear
Contact-lens care, including orthokeratology (e.g., CRT)
Evaluating corneal aberrations secondary to certain lid and ocular surface pathologies
Monitoring progress and visual effects from varying ocular pathologies and surgeries
Assessing pre- and post-corneal refractive surgery patients
Evaluating post-op refractive-surgery complaints
Counseling patients on their specific benefits (and limitations) with conventional versus wavefront-guided custom ablation


 Marco RT 5100 Auto Phoroptor

The Marco TRS (Total Refraction System) RT-5100 is the first of its kind in the country.

Replacing the standard refractor, it allows us to control the entire refraction process from a keypad, and move the lenses quickly and accurately without any discomfort to you.

The new technology allows you to spend less time in the exam room, and allows us to get a more accurate refraction.



Your eyes will appreciate the TRS 5100. Refraction is extremely thorough and it decreases the time you need to spend in the chair. A typical, unremarkable refraction, including unaided acuities, subjective refraction, phorias, near testing, and comparison between old and new Rx now averages about 7 minutes. You, the patient, can appreciate the updated technology and actually find more accurate for us to make decisions due to the simultaneous viewing during script refinement.


Advance Vision Optometric Center 500 N. Atlantic Blvd. Unit 151 Monterey Park, CA 91754 Phone: (626) 458-2020 Fax: (626) 458-2022

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