ĐÁNH GIÁ MỐI TƯƠNG QUAN GIỮA SỐ ĐO NHÃN ÁP CỦA NHÃN ÁP KẾ MACLAKOV VỚI NAK GOLDMANN VÀ NAK KHÔNG TIẾP XÚC

Abstract

Purpose: To analyze the correlation of Maclakov tonometer, Goldmann applanation tonometer (GAT) and non-contact airpuff tonometer results. Subjects and methods: Cross sectional study over 702 eyes of 352 patients who were treated at Glaucoma Deparment, Vietnam National institute of Ophthamology (VNIO) from November 2017 to August 2018. Results: A strongr positive correlation between Maclakov and GAT was found (r=0.937, p<0.001; r=, respectively). The mean difference between 2 tonometers was 2,014 ± 2,562 mmHg (p< 0.001). similarly, there was a strong positive correlation between Maclakov and Noncontact airpuff tonometer r= 0.875, p<0.001 with the mean difference of 1,692± 3,952 mmHg. There was also a strong positive correlation between GAT and airpuff tonometer (r=0.915, p< 0.001). The mean difference was – 0,322 mmHg ± 2,937 mmHg. However, the magnitude of way of difference varied depending on the IOP intervals. Conclusions: Three tonometers have a good agreement from one to another. However, their readings are very different depending upon different IOP intervals. IOP readings from these 3 tonometers were not inerchangable.