Changes in Frequency-Doubling Perimetry in Patients with Type I Diabetes prior to Retinopathy

Table 1

Demographic data and results of FDT in both study groups. 𝑃<0.05 was considered statistically significant (in bold print).

	Control		Diabetics		𝑃 value*
	Mean	SD	Mean	SD
Age (yrs)	27.1	9.14	26.6	8.3	0.875
BCVA (Snellen)	0.93	0.1	0.94	0.1	0.645
IOP (mmHg)	14.93	2.2	14.72	2.4	0.680
FDT MD (dB)	0.25	1.52	−0.04	2.05	0.130
FDT PSD	3.43	0.39	3.78	0.95	0.035
Test time (min)	4.33	0.27	4.37	0.44	0.692
𝑛	30		73

∗Student’s 𝑡-test.
BCVA: best-corrected visual acuity; IOP: intraocular pressure; FDT: frequency-doubling perimetry; MD: mean deviation; PSD: pattern standard deviation; SD: standard deviation.