The normal NPC is about 6-10 centimeters and the normal CRP is approximately 15 centimeters. If the NPC is more than 10 centimeters, this is a sign of poor convergence.
12 сент. 2024 г.
Background: Nearpoint of convergence (NPC) values of 8 to 10 cm are widely used to diagnose binocular dysfunctions such as convergence insufficiency. |
We aim estimate the normative values for NPC, AA, and phoria measurement in Indian population using techniques, which has good repeatability and reliability. |
The average break for adults diagnosed with convergence insufficiency was 7.9 cm (range, 1 to 20 cm). The authors did not report the target used for the ... |
Most data did not have a normal distribution. The range of normality for the vergence measures were: near point of convergence break, 5–10cm, recovery, 6–13cm, ... |
19 окт. 2024 г. · Normal convergence amplitudes are 38 prism diopters at near and 14 prism diopters at distance. |
22 окт. 2024 г. · 17 reported the mean NPC in kindergarten children, third graders, and sixth graders to be 3.90 cm. Accordingly, there is 5.28 cm difference ... |
The RNPR is designed such that the cheek rest cannot advance closer than 5.5 cm towards the patient's face and allows the measurement the near point of ... |
The normal range of NPC is TTN to 10cm when it exceeds above 10cm then it should said to be convergence insufficiency[3]. |
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