Our Technology in North York

At Toronto Medical Eye Associates, we offer AngioPlex OCT Angiography from ZEISS to provide non-invasive imaging of retinal microvasculature. This diagnostic technology helps take glaucoma and retinal disease management and treatment planning to the next level.

OCT Angiography reveals early indicators and offers advanced care for many ocular diseases, including diabetic retinopathy, age-related macular degeneration (AMD), glaucoma, and more.

Heidelberg retinal tomography is a diagnostic procedure used for precise observation and documentation of the optic nerve head, which is essential for diagnosing and managing glaucoma.

The HRT uses a special laser to take 3D photographs of the optic nerve and surrounding retina. This laser, which will not harm the eye, is focused on the surface of the optic nerve and captures the image.

The HRT takes images of deeper layers until the desired depth has been reached. Finally, the instrument takes these pictures of the layers and combines them to form a 3D image of the entire optic nerve.

Typical optic nerve damage in glaucoma is known as “cupping.” As the cells that make up the nerve are damaged due to increased pressure inside the eye, they die and disappear. When a large number of these cells are gone, they leave behind a small “cup” in the nerve, so our doctors look for this when they examine the optic nerve to see how deep and wide it is.

The HRT image can be used to determine the area of the optic disc, the volume of the cup, and the area of the rim around the cup. Over several visits, scans are layered, and changes are measured.

A Humphrey’s visual field test is used to help your doctor detect and treat glaucoma and diagnose possible neurological conditions such as pituitary tumours, optic neuritis, stroke, and more.

A visual field maps out your peripheral vision using a center fixation light and blinking lights. The patient is instructed to always focus on the center fixation light and press the button when the blinking test light is seen with your side vision.

If you move your eyes to follow or look for the blinking lights, it decreases the reliability of the test and the ability of your doctor to detect and/or monitor your disease. Visual field testing is crucial in detecting eye diseases that may have otherwise gone undetected. Often, subtle changes in our peripheral vision cannot be detected except through this highly sensitive and validated test.

Visual field testing can detect the most subtle visual field changes that a patient would very likely never notice. In the instance of glaucoma progression, your doctor can initiate treatment in an attempt to prevent further peripheral vision loss.

When glaucoma advances, it continues to impact peripheral vision until the disease is in its end stages, where it may lead to blindness. Early detection is crucial, and we use advanced diagnostic tools in an effort to preserve your vision.

Meibography is a specialized imaging technology designed to visualize the meibomian glands’ morphology and can assist with dry eye analysis.

These tools offer non-invasive tear break-up time (NIBUT), meibomian gland imaging with the area of:

• Loss analysis
• Tear meniscus height analysis
• Blink analysis
• Real fluorescein imaging and video acquisition
• View review of anterior corneal aberrations between blinks
• Tear lab
• Inflammadry

Corneal topography analyzes the anterior cornea, including topographic maps, 3D maps, comparison maps, height maps, Zernike analysis, and keratoconus screening.

Corneal topography can help us examine characteristics of the cornea such as shape, curvature, power, and thickness. It is also an essential tool for contact lens fitting. 

The axial length of the eye refers to the length of the eye from front to back. Measuring the axial length of the eye can indicate the speed at which a patient’s myopia is progressing and can help us determine the cause of the eye’s elongation.

Axial length measurements are key in developing and monitoring myopia management treatments for young children.