What is the description of partial loss of normal peripheral vision, also known as (peripheral vision) loss, specifically referring to a condition where it is not fully lost, but rather impaired?

From the Guidelines

Loss of normal peripheral vision that is not complete can be described as peripheral vision loss, visual field defect, or peripheral field restriction, with common descriptive terms including tunnel vision, scotoma, hemianopia, or quadrantanopia. When describing this condition, it's essential to note the specific pattern and extent of the loss, as it can result from various conditions including glaucoma, retinal disorders, stroke, or neurological diseases 1. To accurately document this condition, patients should undergo formal visual field testing, such as automated perimetry, which creates a map showing areas of normal and reduced sensitivity.

The extent of visual field loss can be categorized based on the diameter of the visual field, with patients having a field no greater than 10 degrees but greater than 5 around central fixation placed in category 3, and those with a field no greater than 5 around central fixation placed in category 4, even if central acuity is not impaired 1. The terms low vision, blindness, and unqualified visual loss are used to describe different levels of visual impairment, with low vision comprising categories 1 and 2, blindness comprising categories 3,4, and 5, and unqualified visual loss comprising category 9 1.

When communicating with healthcare providers about peripheral vision changes, patients should describe when they first noticed the change, whether it affects one or both eyes, if it's worsening, and any associated symptoms like headaches or eye pain. Prompt evaluation by an eye care professional is essential for proper diagnosis and treatment, as peripheral vision loss can significantly impact daily life, including driving ability and overall quality of life 1. The prevalence of visual impairment and blindness is expected to increase significantly by 2050, with the highest numbers of individuals living with visual impairment and blindness predicted to be among non-Hispanic whites, women, and older adults 1.

Key points to consider when evaluating peripheral vision loss include:

• The specific pattern and extent of the loss
• The underlying cause of the condition, such as glaucoma, retinal disorders, stroke, or neurological diseases
• The impact of the condition on daily life, including driving ability and overall quality of life
• The need for prompt evaluation and treatment by an eye care professional to prevent further vision loss and improve outcomes.