Testimonials
At LKC, we are committed to providing our customers with the comprehensive information they need to help with the treatment and diagnosis of ophthalmic disorders and enhanced patient management. Discover what other professionals and practices are saying about our devices and how they have helped them and their practice.
“The inclusion of ERG in the new American Academy of Ophthalmology (AAO) Preferred Practice Pattern Guidelines (and specifically flash ERG, such as the RETeval from LKC) is a monumental step forward in how we diagnose and manage our diabetes and diabetic retinopathy patients. It is a strong statement from the AAO about the importance of testing both structure and function in our DM and DR patients, to get a more thorough understanding of the complete retinal picture. As someone who has been doing ERGs in clinical practice for over 15 years and educating doctors about the importance of ERGs in a variety of conditions, it is a very exciting day to see the guidelines include such an important test. Most importantly, it is a win for our patients, as they get the best diagnostic care possible. Evaluating and understanding structure and function is so important in all conditions, and it is so exciting to see this recognized in the new AAO PPP guidelines for DM and DR!”
Nate Lighthizer, OD, FAAO
Dean of the Oklahoma College of Optometry and Chief of the Electrodiagnostics Clinic
Northeastern State University, USA
RETeval®
April 15, 2025
“I see every day how long patients have to wait for specialized ERG testing. Indeed, our work with large patient groups and advocates showed that >50% of people report significant delays in getting ERG and VEP tests. The mathematical model in our recent publication suggests that RETeval could significantly reduce these wait times, if it can be shown to be useable and effective in the hands of relatively untrained staff in the real-world setting. More work is needed to explore which patients would benefit the most in which clinical scenarios but it is possible that the RETeval could be a gamechanger in many clinical referral networks and for patients going forward.”
Jay Self, BM FRCOphth PhD
Associate Professor, Ophthalmology Department, University of Southampton, Southampton, UK
RETeval®
April 14, 2025
“The RETeval device is fantastic, very useful in various situations in ophthalmology, my focus being pediatric ophthalmologist. It has facilitated diagnoses by evaluating electrophysiology in cases that would previously have taken a long time to elucidate and it is important to emphasize the invaluable technical support that you provide!”
Dr. Viviane Lanzelotte,
Rio de Janeiro, Brazil
RETeval®
March 7, 2025
“In my work with premature infants with severe ROP and other complex conditions, the RETeval has been a game changer. Its portability allows us to conduct visual electrophysiology testing outside traditional clinical settings in a very comfortable way. The RETeval’s VEP capabilities enable us to assess visual function objectively, which is especially important when working with immobilities or neurological conditions. The objective test results provided by the RETeval are supporting our surgical decisions and allow for reliable treatment follow-up after surgeries in children with very severe ROP. “
Dr. María Ana Martínez,
Star Medica Hip Hospital, México
RETeval®
January 10, 2025
Dr. María Ana Martínez,
Star Medica Hip Hospital, México
RETeval®
January 10, 2025
Dr. Ayelén Ginesta,
Institute of Eyes and Ears of Resistencia in Chaco, Argentina
RETeval®
December 20, 2024
“Traditional electrophysiological devices are often heavy, expensive, and require significant patient cooperation, making them less accessible—especially in regions like Latin America. The RETeval ERG/VEP device changes all that. With its lightweight, portable design and the use of adhesive Sensor Strips instead of corneal contact electrodes, the device simplifies the process, particularly for pediatric patients, including infants. The quick, minimally invasive setup makes the testing experience far less intimidating and much more practical, ensuring we can provide accurate and stress-free testing for our youngest patients.”
Dr. Ayelén Ginesta,
Institute of Eyes and Ears of Resistencia in Chaco, Argentina
RETeval®
December 20, 2024
“The first ERG examination I did was in 1987 when I was a student and It was very hard to perform examinations especially for children. When I started the modern type of ERG with skin electrodes in 2018, it was fantastic for me and I’m very enthusiastic about this method. Examining retinal ganglion cells, sometimes it’s very useful in optic nerve diseases and I would like to encourage examiners to perform ERG to make proper diganosis of optic nerve diseases.”
Prof. Dorota Pojda-Wilczek, Medical University of Silesia
RETeval®
December 13, 2024
“After using the RETevet, I feel that ERG examination can be so convenient. RETevet can be held in hand, there is no need to connect the computer when testing. The test results are stable and can automatically generate PDF files, which can clearly show the results to my customers. It’s great that the preset test protocol can be used to diagnose different diseases!”
Dr. Jie Wang, Founder and Ophthalmologists of Pet Burgh Pet Hospital Ltd., China
RETevet™
January 29, 2024
“Hi, I’m Dr. Diogo de Paula Soares, a pediatric ophthalmologist in Sinop, Mato Grosso. I’d like to briefly share my experience with RETeval. RETeval, due to its portability and the fact that it is non-invasive, as well as presenting a graphic preview of the exam on the screen, has been very well tolerated by children. It has really added a lot to my daily practice, as it clarifies a number of diagnoses, especially in premature children and those with special needs. The ability to assess retinal function using the electroretinogram and visual pathway function using the VEP (Visual Evoked Potential) has been very valuable as a diagnostic tool for my patients and for the patients of some colleagues who specifically refer them for these tests. Therefore, it has been a very interesting experience and has added a lot not only for me in my daily practice but also for my entire region in the north of Mato Grosso.”
Dr. Diogo de Paula Soare, pediatric ophthalmologist in Sinop, Mato Grosso, Brazil
RETeval®
November 5, 2023
“My experience with RETeval is very positive. The portable technology of RETeval has brought to our practice the possibility of electrophysiological diagnosis in sedation-based or not sedated exams. It is now easier to evaluate and monitor visual function, through ERG, in infants with Retinoblastoma or using the anticonvulsant Vigabatrin. But the use is not limited to Pediatric Ophthalmology. As we are in an educational service, RETeval has enabled research using the negative photopic wave in cases of glaucoma, which seems to be a good strategy for monitoring these patients, as it is related to the function of ganglion cells and also in Papilledema.”
Dr. Renata Moreto, Neuro-ophthalmologist, Hospital das Clinicas da Faculdade de Medicina da USP, Brazil
RETeval®
October 5, 2023
“I love this ERG! The RETeval has revolutionized the way we practice. It is a game-changer in functional diabetic retinopathy management and is also quite useful in glaucoma care.”
Mike Cymbor, OD, FAAO, Nittany Eye Associates, USA
RETeval®
February 3, 2023
“RETeval really has made me a better diagnostician. It has allowed me to get early information about a patient’s eye health before disease becomes clinically visible.”
Julie Rodman, OD, MS, FAAO, Nova Southeastern University
RETeval®
January 9, 2023
“As a specialist in both medical and surgical retina, I understood long time ago the important role of ERG in helping to diagnose several diseases. However, the technologies available so far on the market were not user friendly. They were complicated and time-consuming. This is perhaps one of the reasons we have all so heavily relied mainly on imaging. This changed for me after being introduced to the RETeval device from LKC Technologies…
Prof. Paulo Eduardo Stanga, The Retina Clinic London – Director & Vitreoretinal Surgeon
RETeval®
December 6, 2022
“I am a longtime user of the RETeval device. I use it all the time and was amazed at how quickly I was able to implement ERG testing with minimal disruption to the clinic.
Dr. Igor Kozak, Moorfields Eye Hospital Abu Dhabi
RETeval®
April 2, 2020
“I improved my skills under the guidance of the most outstanding European veterinary ophthalmologists…
Piotr Dąbrowski, Veterinary Doctor, Surgeon, Poland
RETevetTM
April 6, 2020
Dr. Robert J. Munger, DVM, DACVO,, Animal Ophthalmology Clinic, Ltd.
UTAS SunBurst
April 5, 2020
“I enjoy the RETevet’s ease of use and portability. The first time I started the device I was able to perform an ERG with no help at…
Martí Cairó Font, Ophthalmologist, Hospital Veterinari Canis – Girona, Spain
RETevetTM
October 24, 2019
“Our organization has implemented the RETevet device at multiple locations. The ability to visualize the animal’s eye throughout the…
Frank J. Frassetto III, ACHE, BSHM, CRT,, Chief Operating Officer, Eye Care for Animals
RETevetTM
April 6, 2020
“As someone not familiarized with ERG, I was surprised with how easy it is to perform ERG tests with the RETevet. The real time view of…
Kaisa Wickström, Veterinarian, Eläinlääkäriasema Kamu Oy – Oulu, Finland
February 6, 2020
“I added the RETevet device to my practice because of the ease of use, portability, and ability to get repeatable test results. In my…
Dr. Robert J. Munger, DVM, DACVO,, Animal Ophthalmology Clinic, Ltd.
RETevet™
February 6, 2020
We plan training sessions and visits by patients implanted with a RETINA IMPLANT Alpha AMS subretinal implant(*) in their own home…
Patient Care Manager, Retina Implant AG
RETeval®
February 6, 2020
Dr. Monique Leys, MD EBO, West Virginia University Eye Institute
RETeval®
February 6, 2020
“The handheld and portable nature of the device made it easy to bring to multiple office locations. We were able to test many patients…
Robert Feig, MD, Brooklyn Eye Center – Retina Specialist
LKC Sensor Strips
February 6, 2020
Melanie Schmitt, MD, University of Wisconsin School of Medicine and Public Health
RETeval®
February 6, 2020
My RETeval Experience – James Soque, Chief of Imaging
RETeval®
November 8, 2019
My RETeval Experience – Pamela Weber, MD
RETeval®
November 7, 2019
My RETeval Experience – Dara Khalatbari, MD
RETeval®
November 7, 2019
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Warning: This product can expose you to chemicals including lead, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
Substance Tables:
The table below lists substances which may be contained within LKC’s RETeval and RETevet products. Substances listed as Type 1 are within permissible levels in one or more of LKC’s products. Substances listed as Type 2 are used in the production of some components used in LKC products and may be present at trace levels, but are typically destroyed during processing.
RETeval and RETevet Devices
| Substance | CAS # | Type | Listed as causing: |
| Nickel | 7440-02-0 | 1 | Cancer |
| Acrylonitrile | 107-13-1 | 2 | |
| Ethylbenzine | 100-41-4 | 2 | |
| Crystaline Silica | 14808-60-7 | 1 | |
| Lead | 7439-92-1 | 1 | Cancer Developmental Toxicity Male Reproductive Toxicity Female Reproductive Toxicity |
| Methylene Chloride | 75-09-2 | 2 | Cancer Female Reproductive Toxicity |
| Bisphenol A | 80-05-7 | 2 | |
| N-Hexane | 110-54-3 | 2 | Male Reproductive Toxicity |
