Correlations between optic nerve OCT and macular functional alterations in patients who undergone successful RRD surgery

Abstract

Purpose: The aim is to study the correlation between macular function measured by macular integrity assessment (MAIA) microperimetry and optic nerve (ON) evaluated by ON optical coherence tomography (OCT) in patients undergoing surgery after RRD.Methods: Cross‐sectional unicentric study including 64 eyes with RRD surgically treated compared with 136 healthy eyes. All underwent an ophthalmological examination including MAIA and ON OCT according to the total retina (TR) protocol and the retinal nerve fibre layer (RNFL) protocol.Results: Significant decrease in sensitivity and Macular Average Threshold were achieved in RRD group while macular integrity was higher. Temporal (T) sector of the TR protocol and superior (S) and inferior (I) sectors of the RNFL protocol showed greater thickness in the RRD group. Positive correlations were achieved between S sector of the OCT in both protocols and fixation stability P1; nasal (N) sector in the TR protocol and MAIA inferior outer (IO) sector; I sector in the TR protocol and MAIA IO and inferior inner (II) sectors while in the RNFL protocol with MAIA IO sector; T sector in the TR protocol and Macular Average Threshold; C (central) sector in the TR protocol and MAIA IO and II sectors. Negative correlations were showed between S sector in the RNFL protocol and MAIA C sector while in the TR protocol with BCEA 63% area; N sector in the RNFL protocol and MAIA central nasal (CN) sector; I sector in the RNFL protocol and MAIA IO sector and Macular Integrity; T sector in the RNFL protocol and MAIA C sector while in the TR protocol with BCEA 63% and 95% angles; C sector in the RNFL protocol and MAIA C and CN sectors.Conclusions: RRD causes loss of macular sensitivity together with anatomical changes in the ON. Inferior sectors of MAIA showed more correlations with the OCT TR protocol while C sectors correlated with the RNFL protocol.