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. Author manuscript; available in PMC: 2013 Jun 23.
Published in final edited form as: Am J Ophthalmol. 2011 Jul 2;152(4):704–711.e2. doi: 10.1016/j.ajo.2011.03.035

Figure 4.

Figure 4

Figure 4

Figure 4

Figure 4

Figure 4

Microperimetry and SD-OCT of left eye of patient 3 with SS sickle cell disease and macular focal thinning (Group A, BCVA 20/20). (Top Left) Microperimetry Polar 3 test grid superimposed on the SLO infrared image. Small white crosses indicate fixation. Each value represents the light sensitivity for the corresponding retinal area. Based on normative data for this particular instrument, a sensitivity of > 12 dB was considered normal. Note markedly reduced retinal sensitivities at one test point. (Top Right) Corresponding SD-OCT thickness (μm) at each of the 28 Polar 3 tested points showing thinning temporally at that location. (Middle Left) Microperimetry data of a customized testing area temporal to the standard Polar 3 grid showing more reduced retinal sensitivities in the area of thinning. Note that these data points were not analyzed statistically since no normative data has been established for this customized pattern. (Middle Right) Corresponding SD-OCT thicknesses in the customized testing area showing reduced retinal thickness temporally. (Bottom) SD-OCT B-scan image showing focal macular thinning temporally seen as abrupt asymmetric decrease in retinal thickness as indicated by arrow.