Evaluation of contrast visual acuity in patients with retinitis pigmentosa

Figures & data

Table 1 Visual acuity and contrast visual acuity of the three groups

	Control	RP-1	RP-2
Conventional VA	−0.04 ± 0.05	−0.04 ± 0.04	−0.02 ± 0.05
100% CVA, photopic	0.00 ± 0.05	0.16 ± 0.08	0.28 ± 0.09
100% CVA, mesopic	0.14 ± 0.06	0.26 ± 0.07	0.4 ± 0.09
10% CVA, photopic	0.31 ± 0.05	0.47 ± 0.07	0.61 ± 0.09
10% CVA, mesopic	0.53 ± 0.06	0.7 ± 0.08	0.84 ± 0.09

Note: Data are expressed as the mean ± standard deviation.

Figure 1 Measurement of contrast visual acuity. (A) Data obtained with 100% and 10% contrast under photopic conditions. (B) Data obtained with 100% and 10% contrast under mesopic conditions. ◆ control, ■ RP-1 group, and ▴ RP-2 group.

Notes: Data are the mean ± standard deviation of three measurements. *P < 0.05 and **P < 0.001.

Figure 2 Differences between visual acuity and contrast visual acuity with 100% contrast under photopic (A) and mesopic conditions (B).

Notes: Data represent the mean ± standard deviation for three measurements. *P < 0.05 and **P < 0.001.

Figure 3 Differences in contrast visual acuity for 100% and 10% contrast under photopic (A) and mesopic (B) conditions.

Note: Data are the mean ± standard deviation of three measurements.