The Influence Of The Difference Of The Defocus Curve Examination Mode On The Judgment Of Clinical Results

To compare and analyze the whole vision and defocus curve of the comprehensive optometer and Oculus Binoptometer 4p total vision analyzer, and to explore the difference of defocus curve of different examination methods.

 To explore the difference of defocus curve of different examination methods.

A total of 30 patients, aged 21-63 years old, with 10 males and 20 females, were 2023 in our hospital in April, method A: the distance of vision was simulated with negative sphere mirror, and method b: the visual acuity of 5m, 1m, 67cm, 33cm was measured with Oculus Binoptometer 4p vision analyzer, the visual acuity and defocus curve were compared and analyzed.

 In Mode A, the visual acuity was between 1.0-1.5 for 5 m, between 0.8-1.5 for 1 m, and between 0.5-1.5 for 67 cm, the visual acuity of single and double eyes of 33cm ranged from 0.3 to 1.2. B mode, single-binocular vision of 5 m ranged from 0.8 to 1.25(standard log visual chart) , single-binocular vision of 1 m ranged from 0.7 to 1.25, and single-binocular vision of 67 cm ranged from 0.4 to 1.25, the visual acuity of 33 cm was between 0.2 and 1.25. The visual acuity of the same individual changed in the same direction with two different defocusing curves and different detection distances.

 The visual acuity of the four test distances simulated by the integrated optometer is slightly better than that detected by the Oculus Binoptometer 4p full range vision analyzer, however, the direction of the defocus curve changed with the change of the detection distance.