What is the main purpose of the Amsler grid test?

The main purpose of the Amsler grid test is to detect macular degeneration. This test involves a simple grid of lines that patients look at while covering one eye at a time. It helps in identifying any distortion in vision, such as wavy or blurred lines, which can be indicative of changes in the macula, the central part of the retina responsible for detailed vision.

The test is particularly valuable for catching early signs of age-related macular degeneration (AMD), a leading cause of vision loss in older adults. By regularly using the Amsler grid, patients can monitor their vision at home and report any changes to their eye care professional promptly, enabling early intervention and management of potential vision loss.

Other options, while related to vision assessment, do not align with the specific purpose of the Amsler grid test. Measuring peripheral vision focuses on the field of view beyond the central vision, assessing color blindness determines a person's ability to perceive colors, and checking intraocular pressure is utilized to evaluate the risk of glaucoma. These functions address different aspects of visual health and are not the objective of the Amsler grid.