本文選題：對比敏感度 + 高階像差　； 參考：《重慶醫(yī)科大學(xué)》2016年碩士論文

【摘要】：目的:本研究選擇近視人群中最佳矯正視力達(dá)1.0及以上的樣本,通過不同視力間屈光度、眼軸、眼壓、角膜中央厚度、像差的比較,各光照條件下的對比敏感度、像差的比較,以及相同視力像差與對比敏感度的比較,探討視力、像差與視覺質(zhì)量之間的相關(guān)聯(lián)系。方法:(1)回顧分析術(shù)前常規(guī)檢查的近視患者的臨床資料,通過采集最佳矯正視力、綜合驗(yàn)光儀屈光度、非接觸眼壓、眼軸長度、角膜厚度、角膜像差、全眼像差、對比敏感度,研究不同視力組各指標(biāo)的差異。(2)利用對比敏感度及其計(jì)算的對比敏感度函數(shù)曲線下面積和各光照條件下的全眼像差的數(shù)據(jù),比較不同光照條件下對比敏感度、像差的差異。(3)在相同矯正視力的基礎(chǔ)上,以對比敏感度均數(shù)分組,研究對比敏感度不同其全眼各像差的差異;以全眼各像差均數(shù)分組,了解像差不同其對比敏感度是否不同;多元逐步回歸方法了解不同光照條件下低、中、高各頻率的對比敏感度以及AULCSF與全眼各像差的關(guān)系。結(jié)果:1.BCVA1.0組與BCVA1.2組間的等效球鏡度數(shù)、眼軸、非接觸眼壓、角膜中央厚度之間結(jié)果無統(tǒng)計(jì)學(xué)意義�？傁癫�、總高階像差、慧差、三葉草、球差、z33、z-33、z-13、z13作為指標(biāo),4mm瞳孔直徑下的角膜各像差bcva1.0組與bcva1.2組間差異均無統(tǒng)計(jì)學(xué)意義,4mm瞳孔直徑下的全眼像差1.2視力組z-33大于1.0視力組z-33,兩組間差異有統(tǒng)計(jì)學(xué)意義,其余各像差的比較結(jié)果之間差異均無統(tǒng)計(jì)學(xué)意義。bcva1.0組與bcva1.2組明光條件下的aulcsf值分別為1.26±0.11、1.32±0.10,其差異具有統(tǒng)計(jì)學(xué)意義;bcva1.0組與bcva1.2組暗光條件下的aulcsf值分別為1.26±0.12、1.30±0.12,其差異具有統(tǒng)計(jì)學(xué)意義,眩光條件下的aulcsf差異無統(tǒng)計(jì)學(xué)意義。2.不同光照條件下全眼總像差、總高階像差、慧差、三葉草差、ssph、z33、z-33、z13、z-13比較,眩光條件下總像差、總高階像差、慧差、三葉草差均比明光條件下小,差異有統(tǒng)計(jì)學(xué)意義,兩組間ssph、z33、z-33、z13、z-13比較差異均無統(tǒng)計(jì)學(xué)意義。暗光條件下各像差均較明光條件、眩光條件下的各像差大,兩組間比較差異有統(tǒng)計(jì)學(xué)意義。不同光照條件下對比敏感度3c/d、6c/d、12c/d、18c/d、aulcsf比較,在3c/d的頻率下,暗光條件下對比敏感度較明光條件下好,兩組比較差異有統(tǒng)計(jì)學(xué)意義,6c/d、12c/d、18c/d、aulcsf比較差異均無統(tǒng)計(jì)學(xué)意義。明光條件下3c/d、6c/d、12c/d、aulcsf對比敏感度均比眩光條件下的好,兩組間比較差異有統(tǒng)計(jì)學(xué)意義,18c/d頻率比較差異無統(tǒng)計(jì)學(xué)意義。暗光條件下3c/d、6c/d、12c/d、aulcsf對比敏感度均比眩光條件下的好,兩組間比較差異有統(tǒng)計(jì)學(xué)意義,18c/d頻率比較差異無統(tǒng)計(jì)學(xué)意義。3.分析矯正視力1.2組對比敏感度不同其像差的差異,明光條件下對比敏感度較好組其對應(yīng)的總像差、等效球鏡相對偏低;暗光條件下aulcsf較好組其全眼總高階像差相應(yīng)較小;bcva1.2組三種光照條件下對比敏感度偏低組其球差較大。分析矯正視力1.0組對比敏感度不同其像差的差異,明光條件下,對比敏感度較好組其對應(yīng)的總高階像差、三葉草差相對偏低;暗光條件下對比敏感度偏低組其球差較大。4.分析近視眼的像差不同時其對比敏感度的差異。矯正視力1.2組,總像差越大,其對明光條件下比敏感度越差。暗光條件和眩光條件下,球差越大,暗光條件和眩光條件下的對比敏感度越差。矯正視力1.0組,總高階像差、慧差、三葉草差越大,其明光條件下對比敏感度越差。球差偏低時,明光、暗光條件對比敏感度優(yōu)于球差偏高的對比敏感度。5.對不同光照情況的不同頻率對比敏感度與各像差進(jìn)行分析,發(fā)現(xiàn)各光照條件各頻率中總像差、球差對視覺質(zhì)量起負(fù)性相關(guān)的作用,垂直慧差對視覺質(zhì)量起正性相關(guān)的作用。結(jié)論:1.在近視人群中,bcva1.0組與bcva1.2組間其等效球鏡、眼軸長、非接觸眼壓、角膜中央厚度無差異。bcva1.0組與bcva1.2組間比較全眼大部分像差、角膜各像差均無差異。bcva1.2組明光條件下、暗光條件下對比敏感度優(yōu)于bcva1.0組。2.比較不同光照條件下全眼像差的差異,顯示暗光下瞳孔直徑較大,其全眼各像差均大于明光條件和暗眩光條件下的像差。比較三種不同光照條件下的對比敏感度差異,直射眩光可能導(dǎo)致人眼的視力下降,使患者在光源照射下有視物模糊的癥狀,人眼視覺質(zhì)量因眩光照射而下降。3.本研究從對比敏感度不同以及像差不同兩方面來分析,發(fā)現(xiàn)大部分對比敏感度偏高組其像差均相對較小,或者像差偏高組其對比敏感度相對較差,提示我們,在相同的視力基礎(chǔ)上,像差較高可能會影響患者的視覺質(zhì)量,這其中球差對視覺質(zhì)量的影響較為明顯。對不同光照情況的不同頻率對比敏感度與各像差進(jìn)行分析,發(fā)現(xiàn)各光照條件各頻率中總像差、球差對視覺質(zhì)量起負(fù)性相關(guān)的作用,垂直慧差對視覺質(zhì)量起正性相關(guān)的作用。
[Abstract]:Objective: to select the best corrected visual acuity of 1 or more in the myopia population, the comparison of the refractive index, ocular axis, intraocular pressure, central corneal thickness, aberration, contrast sensitivity, comparison of aberrations, and the comparison of the same visual aberration and contrast sensitivity were used to explore the visual, aberration and visual quality of the myopia. Methods: (1) retrospective analysis of the clinical data of myopia patients with preoperative routine examination. By collecting the best corrected visual acuity, the refractive index of the optometre, non contact intraocular pressure, ocular axis length, corneal thickness, corneal aberration, total eye aberration, contrast sensitivity, and the difference of the different visual acuity groups were studied. (2) use contrast sensitivity And compared the total eye aberrations under the contrast sensitivity function curve under the contrast sensitivity function curve and the different illumination conditions, and compare the difference of the contrast sensitivity and aberration under different illumination conditions. (3) on the basis of the same corrected visual acuity, the difference of the contrast sensitivity in the whole eye is compared with the contrast sensitivity, and the aberrations in the whole eye are compared with the whole eye aberrations. The correlation sensitivity of low, middle and high frequencies under different light conditions and the relationship between AULCSF and the aberrations of the whole eye were investigated by multiple stepwise regression. Results: the number of equivalent spherical mirrors, eye axis, non contact intraocular pressure and central corneal thickness between group 1.BCVA1.0 and BCVA1.2 group. There was no statistical significance. Total aberration, total high order aberration, coma, Trifolium, spherical aberration, Z33, z-33, z-13, Z13 as indexes, there was no statistical difference between the bcva1.0 and bcva1.2 groups of the corneal aberrations under the pupil diameter of 4mm, and z-33 in the total ocular aberration 1.2 Vision Group under the pupil diameter of 4mm was greater than that of the 1 Vision Group z-33. The difference between the two groups was statistically significant. The differences of the results of the other aberrations were not statistically significant in the.Bcva1.0 group and the bcva1.2 group, the aulcsf value was 1.26 + 0.11,1.32 + 0.10, respectively, and the difference was statistically significant. The aulcsf value under the dark light condition of bcva1.0 group and bcva1.2 group was 1.26 + 0.12,1.30 + 0.12 respectively, and the difference was statistically significant. There was no significant difference between aulcsf and.2. under different light conditions. The total aberration of the whole eye under different light conditions, the total high order aberration, the difference of the wisdom, the difference of clover, the SSPH, Z33, z-33, Z13, z-13, the total aberration, the total higher order aberration, the difference of the wisdom and the difference were statistically significant, the difference was statistically significant. The difference between the two groups was SSPH, Z33, z-33, Z13. The z-13 was the difference. There was no statistical significance. The aberrations of all the two groups under the condition of dark light were larger than those under the condition of glare. The difference between the two groups was statistically significant. The contrast sensitivity under different light conditions was compared with the contrast sensitivity of 6c/d, 12c/d, 18c/d and aulcsf. Under the 3c/d frequency, the contrast sensitivity was better under the light condition, and the difference between the two groups was more different. There was no statistically significant difference between 6c/d, 12c/d, 18c/d and aulcsf. The contrast sensitivity of 3c/d, 6c/d, 12c/d and aulcsf under the light condition was better than that under the glare condition. The difference between the two groups was statistically significant, and the frequency of 18c/d was not statistically significant. The contrast sensitivity of 3c/d, 6c/d, 12c/d, were all compared to the glare under the dark light condition. The difference between the two groups was statistically significant, the difference between the two groups was statistically significant, and there was no statistically significant difference between the 1.2 groups of corrected visual acuity and the difference in the difference of the aberrations between the 1.2 groups of corrected visual acuity, and the corresponding total aberrations in the better contrast sensitivity group under the light condition, and the relative low value of the equivalent sphere in the dark light condition, and the better total eye total height of aulcsf under the dark light condition. The order aberration was smaller, and the difference of the spherical aberration of the group bcva1.2 under the three light conditions was higher than that of the low contrast sensitivity group. The difference of the aberrations between the 1 groups of corrected visual acuity was different. Under the condition of bright light, the contrast sensitivity was better than the total high order aberration, and the difference of the three leaves was relatively low; under the dark light condition, the difference in the contrast sensitivity was lower. The greater.4. analysis of the aberrations of myopia was not at the same time difference in contrast sensitivity. The 1.2 groups of corrected visual acuity, the greater the total aberration, the worse the specific sensitivity under the light conditions. Under the condition of dark light and glare, the greater the spherical aberration, the worse the contrast sensitivity under the dark conditions and the glare conditions. The 1 groups of orthodontic vision, the total higher order aberration, the difference of wisdom and the difference of clover The greater the contrast sensitivity under the light conditions, the lower the spherical aberration, the light, the contrast sensitivity of the dark light condition is superior to the contrast sensitivity.5. of the spherical aberration, and the contrast sensitivity and the aberrations of different light conditions are analyzed, and the total aberrations in each frequency are found, and the spherical aberration is negatively related to the visual quality. Conclusion: 1. in the group of myopia, 1. in group bcva1.0 and bcva1.2, the equivalent sphere lens, eye axis length, non contact intraocular pressure, and no difference in central corneal thickness between group.Bcva1.0 and bcva1.2 group are compared with that of group bcva1.2, and there is no difference between the corneal aberrations in the.Bcva1.2 group and the dark light strip. The contrast sensitivity is better than that of the bcva1.0 group.2., and the difference in the total eye aberration under different light conditions shows that the pupil diameter is larger under the dark light, and the aberrations in the whole eye are larger than those of the clear light conditions and the dark glare conditions. The contrast sensitivity of the three different illumination conditions is compared, and the direct glare may lead to the decrease of the eye vision. The visual quality of the patients is blurred by the light source, and the visual quality of the human eye drops.3. because of the glare. This study is analyzed from two aspects of different contrast sensitivity and aberration. It is found that most of the higher contrast sensitivity groups have relatively small aberrations, or the contrast sensitivity of the higher aberration groups is relatively poor, suggesting that we are in the lower contrast. On the basis of the same visual acuity, the higher aberration may affect the visual quality of the patient, in which the effect of the spherical aberration on the visual quality is more obvious. The sensitivity of the different frequency contrast and the aberrations of different light conditions are analyzed, and the total aberrations in each frequency are found, and the spherical aberration is negatively related to the visual quality. The effect of error on visual quality is positive.
【學(xué)位授予單位】：重慶醫(yī)科大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2016
【分類號】：R778.11

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