Determination of Length of Interdigitation Zone by Optical Coherence Tomography and Retinal Sensitivity by Microperimetry and Their Relationship to Progression of Retinitis Pigmentosa

Table 2

Annual progression of the parameters.

	Annual progression (Progress rate)
Retinal sensitivity (dB/year, %/year)	0.880 ± 0.756 (7.4 ± 7.6)
ELM (μm/year, %/year)	90.9 ± 110 (2.0 ± 2.2)
EZ (μm/year, %/year)	143 ± 136 (3.8 ± 3.3)
IZ (μm/year, %/year)	172 ± 198 (12 ± 16)

Data are the means ± SD. ELM, external limiting membrane; EZ, ellipsoid zone; IZ, interdigitation zone.