Table 6.

Absorption spectra (% ± SD) of in vitro glycation and in vitro deglycation by ATR–FTIR spectroscopy (970 and 1140 cm⁻¹) and NanoDrop spectroscopy (530 nm) according to macular edema.

Process	Absorbance at	DM Group (n = 32)		p Value
		DME (n = 20)	No DME (n = 12)
In vitro glycation	970 and 1140 cm−1	87.49 ± 5.16	89.15 ± 3.41	0.259
	530 nm	0.024 ± 0.008	0.025 ± 0.011	0.409
In vitro deglycation	970 and 1140 cm−1	77.21 ± 1.98	78.74 ± 3.61	0.345
	530 nm	0.053 ± 0.032	0.054 ± 0.046	0.886