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Recent advancements in refractive surgery technology have rapidly expanded options for patients with vision impairment due to myopia, hyperopia, or astigmatism. Currently, about 600,000 people have laser vision correction each year, and this volume largely correlates with consumer confidence and...

What is Nonorganic Vision Loss? Nonorganic vision loss (NVL)—previously known as functional or hysterical vision loss—is subjective vision loss that does not comport with a recognized pathologic process. Prevalence Some reports suggest that approximately 10% of neuroophthalmic patients may have NVL...

Tests for Bilateral Vision Loss Optokinetic response: Eliciting an optokinetic response is helpful if the reported visual acuity (VA) loss is severe and binocular. Optokinetic nystagmus is difficult to suppress and requires a VA of at least 20/400 in one eye. Navigating skills: When very poor VA is...

In this issue of eye Insights, we highlight two treatments for the management of strabismus: botulinum toxin and adjustable sutures. Learn about indications for their use, techniques to incorporate them into your practice, and outcomes. Inside: Message From the Editor-in-Chief What is Strabismus...

Strabismus is misalignment of the eyes. It is described by the direction of the misalignment: esotropia (inward) exotropia (outward) hypertropia (upward) hypotropia (downward) The causes of strabismus in children and in adults are varied and include: • A third, fourth, or sixth cranial nerve palsy•...

Checkpoint inhibitors are becoming more widely used in the management of cancer, so it is important for the ophthalmologist to examine the medication list carefully in a patient with new-onset uveitis. Uveitis Associated with Immune Checkpoint Inhibitors Immune checkpoint inhibitors are used...

In this issue of e ye Insights, we discuss how vision rehabilitation can help your patients maximize the use of their remaining vision and improve the overall quality of their lives. In this issue: Maximizing Vision: From the Editor-in-Chief Low Vision Overview Who Can Benefit From Vision...

Dear Colleagues, As clinicians, we are often faced with patients whose vision we cannot improve any further by medical or surgical treatment. These patients have low vision, a condition that is predicted to affect more than 5 million people in the United States by the year 2030. Chronic vision...

There are six levels of visual function Normal vision Moderate vision impairment Severe vision impairment Profound vision impairment Near-total vision impairment Blindness What is low vision Loss of eyesight caused by disease or injury to the eye or brain that cannot be corrected with glasses...

The Harvard Ophthalmology Mobility Enhancement and Vision Rehabilitation Center of Excellence aims to help people with low vision safely achieve greater freedom and quality of life by enhancing the use of their residual vision and by improving their ability to navigate on foot or by car. Researchers...