RELATIONSHIP BETWEEN THE HEIGHT OF WIDE AND NARROW PRIMARY MACULAR STAPHYLOMA AND MYOPIC MACULAR RETINOSCHISIS.

PURPOSE: To investigate the relationship between the depth of wide and narrow primary macular staphyloma and myopic macular retinoschisis.

METHODS

Sixty-nine highly myopic eyes with wide and narrow primary macular staphyloma were included in this cross-sectional study and classified into two groups according to the presence or absence of myopic macular retinoschisis on swept-source optical coherence tomography. All patients received a complete ophthalmologic examination with determination of macular staphyloma depth by ocular ultrasonography (B-scan).

RESULTS

Nine eyes (9/69, 13.04%) present myopic macular retinoschisis on swept-source optical coherence tomography. Eyes with vitreomacular tractions, arteriolar traction, and greater macular staphyloma depth were more likely to develop myopic macular retinoschisis (odds ratio, 11.32; P = 0.001; odds ratio, 6.23; P = 0.039; and odds ratio, 3.37; P = 0.01, respectively). We did not observe statistically significant differences regarding best-corrected visual acuity between eyes with and without myopic macular retinoschisis ( P = 0.39).

CONCLUSION

The depth of the wide and narrow primary macular staphyloma appears to be a new and an important factor in the development of myopic macular retinoschisis.