PMID- 29349656 OWN - NLM STAT- MEDLINE DCOM- 20180830 LR - 20181113 IS - 1590-3478 (Electronic) IS - 1590-1874 (Linking) VI - 39 IP - 3 DP - 2018 Mar TI - Correlations among multifocal electroretinography and optical coherence tomography findings in patients with Parkinson's disease. PG - 533-541 LID - 10.1007/s10072-018-3244-2 [doi] AB - To assess the correlation between functional and anatomical evaluations with multifocal electroretinography (mfERG) and spectral-domain optical coherence tomography (SD-OCT) in patients with Parkinson's disease (PD). This cross-sectional study involved 116 eyes of 58 patients with PD and 30 age- and sex-matched control subjects. All study participants underwent a comprehensive neuro-ophthalmic examination, retinal single-layer thicknesses and volumes, and peripapillary retinal nerve fiber layer (pRNFL) measurements with SD-OCT, and the patients' mfERG recordings were evaluated. The macular retinal nerve fiber layer (mRNFL), ganglion cell layer (GCL), inner plexiform layer (IPL), outer nuclear layer (ONL), retinal pigment epithelium (RPE), and photoreceptor layer (PR) thicknesses, and mRNFL, RPE, and PR volumes were found lower in PD compared to those of controls, while outer plexiform layer (OPL) volumes were increased (p < 0.05). We found delayed implicit times and decreased amplitudes in the mfERG of PD patients versus those in control subjects (p < 0.05). We found significant correlations between outer macular volumes, PR thicknesses, and N1 amplitudes of rings 2 and 3and P1 amplitudes of rings 3, 4, and 5. Our study revealed thinning of both inner and outer retinal single layers, increased OPL volume, and delayed implicit times and decreased amplitudes in the mfERG of PD patients versus control subjects and correlation between structural and functional parameters. Our findings point out that SD-OCT and mfERG could both serve as non-invasive tools for evaluating ophthalmic manifestations of Parkinson's disease. FAU - Unlu, Metin AU - Unlu M AUID- ORCID: 0000-0003-2505-9853 AD - School of Medicine, Ophthalmology Department, Erciyes University, 38039, Kayseri, Turkey. drunlumetin@hotmail.com. FAU - Gulmez Sevim, Duygu AU - Gulmez Sevim D AD - School of Medicine, Ophthalmology Department, Erciyes University, 38039, Kayseri, Turkey. FAU - Gultekin, Murat AU - Gultekin M AD - School of Medicine, Neurology Department, Erciyes University, 38039, Kayseri, Turkey. FAU - Karaca, Cagatay AU - Karaca C AD - School of Medicine, Ophthalmology Department, Erciyes University, 38039, Kayseri, Turkey. LA - eng PT - Comparative Study PT - Journal Article DEP - 20180118 PL - Italy TA - Neurol Sci JT - Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology JID - 100959175 SB - IM MH - Cross-Sectional Studies MH - *Electroretinography MH - Female MH - Humans MH - Male MH - Middle Aged MH - Organ Size MH - Parkinson Disease/*diagnostic imaging/pathology/physiopathology MH - Retina/*diagnostic imaging/pathology/physiopathology MH - *Tomography, Optical Coherence OTO - NOTNLM OT - Multifocal electroretinography OT - Optical coherence tomography OT - Parkinson's disease OT - Retinal nerve fiber layer OT - Retinal single layers EDAT- 2018/01/20 06:00 MHDA- 2018/08/31 06:00 CRDT- 2018/01/20 06:00 PHST- 2017/10/24 00:00 [received] PHST- 2018/01/02 00:00 [accepted] PHST- 2018/01/20 06:00 [pubmed] PHST- 2018/08/31 06:00 [medline] PHST- 2018/01/20 06:00 [entrez] AID - 10.1007/s10072-018-3244-2 [pii] AID - 10.1007/s10072-018-3244-2 [doi] PST - ppublish SO - Neurol Sci. 2018 Mar;39(3):533-541. doi: 10.1007/s10072-018-3244-2. Epub 2018 Jan 18.