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. 2022 May;66(3):335-340.
doi: 10.1007/s10384-022-00915-2. Epub 2022 Apr 17.

Efficacy of scleral imbrication on all quadrants in enucleated pig eyes

Osamu Sawada  1 , Shumpei Obata  2 , Masashi Kakinoki  2 , Riko Matsumoto  2 , Yusuke Ichiyama  2 , Tomoko Sawada  2 , Yoshitsugu Saishin  2 , Masahito Ohji  2
Affiliations

Efficacy of scleral imbrication on all quadrants in enucleated pig eyes

Osamu Sawada et al. Jpn J Ophthalmol. 2022 May.

Abstract

Purpose: To evaluate the changes in axial length (AL) and corneal astigmatism induced by scleral imbrication on all quadrants in pig eyes.

Study design: Experimental study METHODS: We produced scleral imbrications either on all quadrants or on 2 consecutive quadrants of 5 enucleated pig eyes. Scleral imbrications 8 mm wide were made at 8 mm from the limbus on each quadrant. We determined the AL using an electronic caliper and the corneal astigmatism using a keratometer before and after the 2 types of scleral imbrications and compared the changes in ocular AL and corneal astigmatism induced by the 2 surgical procedures.

Results: The AL reduction after the scleral imbrication on all quadrants (3.96 ± 0.56 mm) was larger than that on 2 quadrants (2.39 ± 0.41 mm) (P = .001). The change in corneal astigmatism induced by imbrication on all quadrants (2.98 ± 1.96 D) was less than that on 2 quadrants (5.95 ± 2.04 D) (P < .029).

Conclusions: Scleral imbrication on all quadrants induced a shorter AL and less corneal astigmatism than did a standard scleral imbrication on 2 quadrants. Therefore, the former could be a more effective operation for retinal disorders associated with high myopia, including macular hole retinal detachment and myopic foveoschisis.

Keywords: All quadrants; Axial length; Corneal astigmatism; Macular hole retinal detachment; Scleral imbrication.

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