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Blindness Prevention at Your Fingertips




Set Reminders

The MaculaTester App allows you to set up daily or weekly reminders for your test. You'll never forget to take care of your vision and you'll be prepared for every doctor's visit. 


Notify Your Doctor

Your test results can be emailed directly to your doctor from the app, so they are always aware of your progress. 


Track Your Progress

One of the most exciting features of the app is our progress tracker. You can drag your finger across the bottom of the screen and compare test results over time. 

What is the purpose of MaculaTester?

The Problem 

Diseases that affect the macula (the center of the retina), including macular degeneration and diabetic retinopathy, are the main causes of blindness worldwide. Up to 80% of patients with diabetes lose vision due to retinopathy and up to 20% of patients with age related macular degeneration (AMD) go blind. 


The best defense against these conditions is early detection. 


This simple test of your vision can alert you to changes that may indicate a problem with your macula caused by diabetes or macular degeneration.

© 2018 BVA Advanced Eye Care

The Treatment

The MaculaTester (Patent # 8,047,652), is an interactive version of the Amsler Grid - the standard test used be eye doctors to check macular function for over 50 years.


Image distortion is often the first visual change that patients notice when the condition is starting or advancing. Since the distortion can be subtle and difficult to notice at first, the amsler grid is used to help detect AMD as early as possible while it is still treatable. 


Most doctors give their patients a card with an amsler grid on it to test themselves at home between eye exams. Unfortunately many patients loose it, or forget to use it.    

© American Academy of Ophthalmology 2018

Our Solution

The MaculaTester offers several distinct advantages as an electronic version of the Amsler grid: 

1) It is interactive - allowing you to record the area of distortion by touching the screen. The

recorded image is saved with date and time so you can show it to your doctor, as well as compare

to previous images to look for any changes.

2) It solves the main problems with the regular Amsler grid - It resides on your electronic device - so you won't lose it, and allows you to set up daily or weekly notification that remind you to perform the test - so you won't forget to use it.


Media Coverage

Meet the Creator

After attending the University of Pennsylvania as an undergraduate, Dr. Collazo obtained his medical degree from New York University School of Medicine and later completed his internship at Thomas Jefferson University Hospital in Philadelphia in 1987.

Following his internship, Dr. Collazo was selected to complete a research fellowship at Scheie Eye Institute/University of Pennsylvania - Dept. of Ophthalmology. His studies regarding the pathophysiology of macular degeneration and diabetic retinopathy have been published in the international ophthalmic literature.


He completed his residency in ophthalmology at Hahnemann University Hospital in Philadelphia where, in 1993 he was elected co-chief resident and honored with the surgical resident of the year award.


Dr. Collazo has been a guest lecturer for various medical and lay organizations in the United States, Puerto Rico and Europe including the Center for International Studies at The Eye Institute in Philadelphia.


Dr. Collazo has been showcased by Newsweek Magazine as one of the leaders in ocular surgery in the United States.


This prestigious recognition is awarded to physicians who are nationally recognized for their commitment to excellence in ocular surgery and their leadership in the use of advanced technology.


Dr. Collazo practices comprehensive ophthalmology in San Juan, Puerto Rico where he has been recognized on several occasions with the “Doctor´s Choice Award” - having been selected by his fellow physicians as one of the most outstanding ophthalmologist’s in Puerto Rico


He is a diplomate of the American Board of Ophthalmology and a Fellow of the American Academy of Ophthalmology, as well as a member of the American Society of Cataract and Refractive Surgery. 

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