Abstract
Morphology and topographic anatomical relations of pars plana, pars plicata and ora serrata were examined in 15 globes of fetuses, obtained from autopsy. The mean value of pars plana size was: nasal meridian = 1.15 +/- 0.32 mm; temporal meridian = 1.20 +/- 0.34 mm; superior meridian = 1.19 +/- 0.34 mm; inferior meridian = 1.15 +/- 0.34 mm. The mean value of the distance between the sclerocorneal limbus and the ora serrata was: nasal meridian = 3.22 +/- 0.30 mm; temporal meridian = 3.33 +/- 0.35 mm; superior meridian = 3.23 +/- 0.36 mm; and inferior meridian = 3.27 +/- 0.37 mm. A significant difference between the mean sizes of the pars plana in the superior meridian was found compared to the nasal and inferior meridian. The distances from Schwalbe's line to the ora serrata in the 4 meridians did not vary significantly. A positive, significant correlation between the antero-posterior diameter and the distances from the sclerocorneal limbus to the ora serrata was demonstrated in the 4 meridians.
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