NPC testing assesses which function?

NPC testing assesses which function?

• A. Near Point of Convergence
• B. Newtownian Pressure Check
• C. Neural Processing Correlation
• D. Non-Perceived Color

Answer: (A)

Convergence ability of the eyes at near. NPC testing measures how closely the eyes can inwardly converge to maintain single, binocular vision as a target moves toward the nose. The exam uses a small target moved slowly toward the patient; the point at which vision breaks into diplopia is the Near Point of Convergence. This reflects the strength of the vergence system and its relationship with accommodation. If the break point is farther away than normal, it can indicate convergence insufficiency, which often relates to near-vision symptoms like eye strain. The other options aren’t related to eye convergence or binocular fusion—pressure checks, neural processing measures, and color perception are separate areas of testing.

Convergence ability of the eyes at near. NPC testing measures how closely the eyes can inwardly converge to maintain single, binocular vision as a target moves toward the nose. The exam uses a small target moved slowly toward the patient; the point at which vision breaks into diplopia is the Near Point of Convergence. This reflects the strength of the vergence system and its relationship with accommodation. If the break point is farther away than normal, it can indicate convergence insufficiency, which often relates to near-vision symptoms like eye strain. The other options aren’t related to eye convergence or binocular fusion—pressure checks, neural processing measures, and color perception are separate areas of testing.