Table 2. Outcomes of visual acuity for RRD surgery in an elderly population (n = 98).

	Total	70s	80s	P value*
BCVA before surgery [LogMAR, Mean (SD)]	1.06(0.50)	1.05(0.50)	1.09(0.52)	0.682
BCVA 3 months after surgery [LogMAR, Mean (SD)]	0.74(0.35)	0.71(0.34)	0.78(0.36)	0.334
Difference of BCVA during the 3 months [LogMAR, Mean (SD)]	0.32(0.35)	0.34(0.36)	0.31(0.34)	0.709
BCVA 1 year after surgery [LogMAR, Mean (SD)]	0.54(0.26)	0.53(0.25)	0.55(0.29)	0.650
Difference of BCVA during the 1 year [LogMAR, Mean (SD)]	0.53(0.44)	0.52(0.40)	0.54(0.49)	0.845

*A comparison was made between age groups of patients who were in their 70s and 80s using independent samples t-tests. A value of P<0.05 was regarded as statistically significant.

RRD, rhegmatogenous retinal detachment; BCVA, best-corrected visual acuity; LogMAR, Logarithm of the Minimum Angle of Resolution; SD, standard deviation.