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用电子顺磁共振（ＥＰＲ）法，化学发光法及荧光光谱法研究了１００例正常人、４２例角膜移值患者泪液中的自由基、超氧化物岐化酶（ＳＯＤ）和水溶性脂质过氧化物（ＷＳＬＰ）等指标．结果表明正常人泪液中自由基的自旋浓度是（３．６±０．５８）×１０１２ｓｐｉｎｓ／ｍＬ，ＳＯＤ浓度为（３．８４±１．４５）μｇ／Ｌ、水溶性脂质过氧化物相对荧光强度为９．５９８～１６．２２５Ｕ／ｍＬ．角膜移植后三项指标变化出现两个规律的峰，这种规律性变化在三项指标间存在显著的相关性．其中５例患者的特殊变化证明移植排斥反应与术后这些变化的进一步持续发展有关
Electron paramagnetic resonance (EPR), chemiluminescence and fluorescence spectroscopy were used to study the changes of free radicals, superoxide dismutase (SOD) and water-soluble lipids in 100 normal subjects and 42 corneal migrating patients. Peroxide (WSLP) and other indicators. The results showed that the normal human tear free radicals spin concentration (3.6 ± 0.58) × 1012spins / mL, SOD concentration (3.84 ± 1.45) μg / L, water-soluble lipid peroxide The relative fluorescence intensity was 9.598 ~ 16.225U / mL. After the corneal transplantation, the changes of the three indicators showed two regular peaks, and the regular changes were significantly correlated among the three indicators. The special changes in 5 of these patients demonstrated that graft rejection was associated with further development of these changes postoperatively