The visual tool featuring a grid of horizontal and vertical lines is utilized to monitor central visual field distortions. Individuals typically use this chart at home to self-monitor for any changes in their vision. An example involves viewing the grid with one eye covered, focusing on the central dot, and noting any wavy, blurry, or missing lines.
Regular utilization of this assessment aids in early detection of macular degeneration and other conditions affecting the central retina. Early identification of these changes can enable timely intervention and potentially slow disease progression, preserving visual acuity. It has been used for decades by ophthalmologists and optometrists as a simple yet effective method for patient screening.
The following discussion will detail specific instructions for optimal utilization, common visual distortions that may indicate a problem, and the importance of consulting a medical professional should any abnormalities be detected.
