The rising demand for eye care services, combined with an ongoing shortage of ophthalmologists and ophthalmic technicians, has transformed the role of the medical optometrist. Optometrists are now stepping up to deliver essential diagnostic and therapeutic services across various conditions. With new technology like virtual visual field testing, providers have even more tools to support their expanded scope.
Here’s how optometrists can fully leverage visual field testing to elevate patient care and practice efficiency.
Visual Field Exams and Driving Assessments
As the U.S. population ages, more drivers are at risk of vision-related accidents. Nearly 90% of adults drive, and over 20% of drivers are 65 or older, particularly vulnerable to ocular diseases. Older drivers also account for a significant percentage of fatal crashes, making vision screenings even more critical.
Visual field testing, such as the Esterman exam, provides an in-depth look at a patient’s peripheral vision, often exceeding what is required for state licensing. When results show that a patient no longer meets the vision standards for driving, optometrists can help guide sensitive conversations about safety and independence. This proactive use of visual field exams supports clinical responsibility and compassionate patient care.
Supporting Oculoplastics Through Visual Field Data
Tests like the Superior 36 are essential when evaluating patients for oculoplastic surgeries, such as those treating ptosis (drooping eyelids) or dermatochalasis (excess eyelid skin). Visual field results help determine the degree of visual impairment and can simulate post-surgical outcomes by assessing fields with lids taped.
For conditions like thyroid eye disease, visual field analysis offers critical insight into optic nerve status and lid positioning as proptosis progresses.
Visual Field Testing in Glaucoma Management
Visual field exams are a mainstay of glaucoma diagnosis and monitoring. While OCT imaging offers valuable structural information, visual field tests reveal how vision functions in real-world terms.
- For glaucoma suspects: Annual 24-2 testing is often sufficient, with additional testing guided by OCT findings.
- For diagnosed glaucoma patients: After starting treatment, performing 3–5 visual field tests within the first 18 months can help establish a reliable baseline for monitoring progression.
The 24-2 format offers a wide view, while 10-2 testing provides a closer look at the central field, essential for detecting early ganglion cell loss.
Monitoring Patients on Plaquenil (Hydroxychloroquine)
Long-term use of Plaquenil, often prescribed for autoimmune conditions, carries a risk of retinal toxicity. As patients remain on this medication for extended periods, optometrists play a critical role in early detection.
Baseline testing should include a visual field exam, color vision test, and macular OCT, followed by regular annual checkups. After five to seven years of use, increasing screening frequency to every six months is recommended to detect toxicity early and prevent irreversible vision loss.
Managing Diabetes, AMD, and Other Retinal Conditions
Macular edema, wet AMD, and geographic atrophy can impact foveal function, often without apparent changes in visual acuity. Visual field testing enables practitioners to detect and map areas of central vision loss more precisely, leading to more targeted care plans.
Visual Field Testing for Migraine Patients
Migraines often present with transient visual disturbances, including temporary vision loss or auras. Because symptoms can overlap with more serious vascular events like strokes, visual field testing (particularly using 30-2 strategies) can help differentiate between conditions and establish baseline data for future comparison.
Color vision testing and pupillometry are also recommended to assess optic nerve and macular health in these cases.
Click here to access Dr. Lisa Arbisser’s Guide to Pupillometry and Neurologic Disorders.
How Virtual Visual Field Solutions Support Efficient Testing
Virtual Field offers a broad menu of billable visual field exams, covering threshold tests (24-2, 10-2, 30-2), screening tests (N-30, C-40), ptosis evaluation (Superior 36), driving vision standards (Full Field 120, Esterman, Binocular Esterman), as well as kinetic visual fields, color vision exams, foveal threshold tests, and pupillometry.
Medical optometrists are using Virtual Field technology to more efficiently diagnose, monitor, and manage a range of ocular and neurological conditions, while also offering a better testing experience for patients.
For more information on the benefits of virtual visual field testing for optometrists and how it can help provide quality patient outcomes and practice efficiency, watch this webinar with Dr. Janelle Davison.
