Abstract:
To document the difference in the OCT appearance ofschisis cavities between the two eyes of a patient with x–linkedretinoschisis and unilateral hypotony.
A fifty five–year–old male patient with diagnosisof x–linked retinoschisis and hypotony in his left eyeafter trabeculectomy presented with decreased vision in hisleft eye. Clinical examination, OCT, and fluorescein angiography(FA) were performed.
Best–corrected visual acuity was 20/60 in the right eyeand 20/40 in the left eye. Intraocular pressure by applanationwas 14 mmHg in the right eye and 8 mmHg in the left eye. OCTshowed separation of only the outer plexiform layer in the righteye (Figure 1), but of the inner and outer plexiform layersin the left eye (Figure 2). There was no leakage in the FA.
Conflicting reports regarding the involvement of outer and/orinner plexiform layers exist in x–linked retinoschisisbased on the histopathologic and OCT findings. Our case suggeststhat the outer plexiform is likely to be affected primarilywith other layers being prone to separation spontaneously orwith concomitant disorders such as hypotony.
Keywords: retinal degenerations: hereditary • macula/fovea • imaging methods (CT, FA, ICG, MRI, OCT, RTA, SLO, ultrasound)