PMID- 33768408 OWN - NLM STAT- MEDLINE DCOM- 20210630 LR - 20210630 IS - 1573-2630 (Electronic) IS - 0165-5701 (Linking) VI - 41 IP - 7 DP - 2021 Jul TI - Evaluation of macular, retinal nerve fiber layer and choroidal thickness by optical coherence tomography in children and adolescents with vitamin B(12) deficiency. PG - 2399-2404 LID - 10.1007/s10792-021-01794-1 [doi] AB - PURPOSE: To investigate macular, Retinal Nerve Fiber Layer (RNFL) and choroidal thickness in children and adolescents with vitamin B(12) deficiency and no neurological examination finding. METHODS: The study group includes of thirty-three children aged 8-17 years who were brought to the Pediatric outpatient clinic with the symptoms of fatigue and forgetfulness and whose Vitamin B(12) levels were detected < 200 pg/ml. The control group was the 30 children and adolescents applied to the same policlinic with various symptoms and whose Vitamin B(12) levels were found normal. Children and adolescents with chronic systemic/ocular disease history and myopia or hyperopia more than 4 diopters were not included in both groups. Spectral Domain-Optical Coherence Tomography (SD-OCT) was used for measurements. RESULTS: Mean Macular thickness value was 261.2 +/- 17.6 in the Vitamin B(12) deficiency group and 267.7 +/- 17.4 in the control group. Mean value of Retinal Nerve Fiber Layer (RNFL) thickness was 103.5 +/- 7.5 in the Vitamin B(12) deficiency group and 104.3 +/- 8.9 in the control group. The mean values of Choroidal thickness were 360.1 +/- 59.8 and 316.9 +/- 95.4 in Vitamin B(12) deficiency and control groups, respectively. There was a statistically significant increase in choroidal thickness in Vitamin B(12) deficiency group compared to controls. CONCLUSION: Statistically significant increase in the Choroidal thicknesses of children and adolescents with Vitamin B(12) deficiency is important in terms of shedding light on studies that will contribute to a better understanding of the relationship between vitamin B(12) and inflammation. CLINICAL TRIAL REGISTRATION: This study is an observational study. FAU - Ayyildiz, Taha AU - Ayyildiz T AUID- ORCID: 0000-0001-7938-5238 AD - Ophthalmology Department, Bursa City Hospital, Bursa, Turkey. FAU - Dulkadiroglu, Ramazan AU - Dulkadiroglu R AD - Department of Pediatrics, Faculty of Medicine, Kirsehir Ahi Evran University, Kirsehir, Turkey. drdulkadir40@hotmail.com. FAU - Yilmaz, Mevlut AU - Yilmaz M AD - Ophthalmology Department, Ulucanlar Eye Hospital, Ankara, Turkey. FAU - Polat, Osman Ahmet AU - Polat OA AD - Ophthalmology Department, Faculty of Medicine, Kayseri Erciyes University, Kayseri, Turkey. FAU - Gunes, Ali AU - Gunes A AD - Department of Pediatrics, Faculty of Medicine, Kirsehir Ahi Evran University, Kirsehir, Turkey. LA - eng PT - Journal Article PT - Observational Study DEP - 20210325 PL - Netherlands TA - Int Ophthalmol JT - International ophthalmology JID - 7904294 RN - 0 (Vitamins) RN - P6YC3EG204 (Vitamin B 12) SB - IM MH - Adolescent MH - Child MH - Choroid MH - Humans MH - Nerve Fibers MH - *Tomography, Optical Coherence MH - *Vitamin B 12 MH - Vitamins OTO - NOTNLM OT - Adolescent OT - Children OT - Choroid thickness OT - Macula OT - RNFL OT - Vitamin B12 deficiency EDAT- 2021/03/27 06:00 MHDA- 2021/07/01 06:00 CRDT- 2021/03/26 07:10 PHST- 2020/11/07 00:00 [received] PHST- 2021/03/06 00:00 [accepted] PHST- 2021/03/27 06:00 [pubmed] PHST- 2021/07/01 06:00 [medline] PHST- 2021/03/26 07:10 [entrez] AID - 10.1007/s10792-021-01794-1 [pii] AID - 10.1007/s10792-021-01794-1 [doi] PST - ppublish SO - Int Ophthalmol. 2021 Jul;41(7):2399-2404. doi: 10.1007/s10792-021-01794-1. Epub 2021 Mar 25.