The clinical comparative analysis between short wavelength automated perimetry and standard automated perimetry

Abstract

Objective To analyze the clinical application values of short wavelength automated perimetry (SWAP) by comparative analysis between short wavelength automated perimetry and standard automated perirmetry (SAP). Methods The retrospective series case study was used.Collecting 60 patients (120 eyes),including 25 patients (50 eyes) who had been diagnosed as glaucoma,but did not in acute stage of disease,the non-contact intraocular pressures were ≤30mmHg (1mmHg=0.133kPa); 35 patients (70 eyes) were recruited as normal control group whose non-contact intraocular pressures were 21-30mmHg,but had no syndromes and signs of glaucoma.All eyes above were undergone SWAP and SAP,the statistical software SPSS13.0 was used to analyze inspection results,t test was used to compare data of SWAP with SAP,the relationship between visual acuity and visual field indices were estimated with correlation analysis. Results For glaucoma group,mean deviation (MD) in SAP were (-11.08±6.96)dB,and were (12.41±8.56)dB in SWAP,there was no significant difference between SAP and SWAP (t =0.42,P ＞0.05),for normal control group,MD in SAP were (-2.74±2.13)dB,and were (-4.41±3.10)dB in SWAP,there was statistically significant difference between SAP and SWAP (t =-2.36,P ＜0.05).There was positive correlation between visual acuity and MD:r =0.70,P ＜0.05 in SAP,and r =0.60,P ＜0.05 in SWAP.For glaucoma group,pattern standard deviation (PSD) in SAP were (6.70±3.62)dB,and were (5.31±2.59)dB in SWAP,there was no statistically significant difference between SAP and SWAP (t =1.10,P =0.28),for normal control group,PSD in SAP were (1.83±0.99)dB,and were (3.23±1.03)dB in SWAP,there was statistically significant difference between SAP and SWAP (t =-4.92,P ＜0.05).There was negative correlation between visual acuity and PSD:r =-0.79,P ＜0.05 in SAP,and r =-0.61,P ＜0.05 in SWAP.Concusions SWAP is more sensitive than SAP,and can make diagnosis and prejudgment much better.However,when it comes to analyzing the progress of glaucoma,there is no statistically significant difference between SWAP and SAP. Key words: Perimetry; Short-wave-sensitive; Glaucoma