Study On The Thickness And Integrity Of Choroidal Retina And The Age And Diopter In High Myopia

Objective: To investigate the relationship between adult height and ultra-high myopia in choroidal thickness,retinal integrity,axial length and age.Methods: This study used a cross-sectional descriptive study design to include 155 eyes of adult high myopia patients in the First Affiliated Hospital of Xinjiang Medical University from October 2017 to April 2018,including 87 eyes with high myopia and Ultra-high myopia 68 eyes in contrast.The submucosal choroidal thickness(SFCT)was measured by the enhanced depth scanning(EDI)technique of frequency domain optical coherence tomography(SD-OCT)and the integrity of the omentum was observed.The axial length was measured using an IOL master.The relationship between choroidal thickness and axial length and age was compared between the two groups.Results: The choroidal thickness of the high myopia group was(168.33±96.89)μm,the average axial length was(26.35±1.55)mm,and the subfoveal choroidal thickness of the ultra-high myopia group was(84.79±69.60)μm,The average axial length value was(29.00 ± 2.37)mm.The differences between the two groups were statistically significant(t=5.983,P=0.000;t=-7.987,P=0.000).Linear correlation analysis shows that Height and ultra-high visual choroid thickness were negatively correlated with age and axial length..The ellipsoidal integrity of the ultra-high myopia group is lower than that of the high myopia group.The difference between the two groups was also statistically significant(P<0.05).Conclusion: The choroidal thickness in the macular area of adults with high and ultra-high myopia is negatively correlated with the length of the axial length.The loss of ultra-high myopia ellipsoidal band is more obvious,and it is closely related to the best corrected visual acuity.