{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,14]],"date-time":"2026-09-14T23:44:29Z","timestamp":1789429469669,"version":"build-2803163510"},"reference-count":36,"publisher":"MDPI AG","issue":"12","license":[{"start":{"date-parts":[[2025,6,17]],"date-time":"2025-06-17T00:00:00Z","timestamp":1750118400000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"Research Council of Lithuania","award":["P-LLT-23-16"],"award-info":[{"award-number":["P-LLT-23-16"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["JCM"],"abstract":"<jats:p>Background: The main mechanism of optic nerve damage in patients with pituitary adenoma (PA) is the pressure of optic chiasm. The retinal nerve fiber layer (RNFL), the ganglion cell layer (GCL)+, and GCL++ thickness measurement by optical coherence tomography (OCT), visual function evaluation, and magnetic resonance imaging (MRI) can be used to predict visual function recovery. In our study, we investigated the associations between visual acuity (VA), visual field (VF), RNFL, GCL changes, and the findings of MRI in patients with PA. Methods: This study was conducted in the Departments of Ophthalmology and Neurosurgery of the Lithuanian University of Health Sciences Hospital. A total of 25 patients diagnosed with PA were included in the study group, and 27 healthy subjects were included in the control group. The thickness of the RNFL and ganglion cell layer (GCL+, GCL++) and optic nerve disc diameter was analysed with OCT. Moreover, an MRI was performed for patients with PA. Results: The RNFL thickness around the optic disk measured preoperatively was reduced significantly in the temporal quadrant in PA patients compared with the control group (median (min; max); mean rank: 73.5 (52; 109); 58.39 vs. 69.5 (16; 168); 46.14; p = 0.038). We found that it was reduced significantly only in the inferior quadrant of the macro-PA group compared to the micro-PA group (median (min; max); mean rank: 99.5 (61; 115); 21.07 vs. 106.5 (90; 121); 32.15), p = 0.008, respectively). The RNFL thickness was reduced significantly only in the inferior quadrant of the non-active PA group compared to the active PA group (median (min; max); mean rank: 118.5 (49; 144); 17.42 vs. 130.5 (77; 156); 28.05), p = 0.028, respectively). RNFL thickness was reduced significantly only in the temporal quadrant in the PA with suprasellar extension group compared to the PA without suprasellar extension group (median (min; max); mean rank: 67.5 (16; 99); 21.66 vs. 72 (58; 168); 30.39), p = 0.036, respectively). Furthermore, GCL++ thickness was reduced significantly in total and in superior and inferior sectors of the PA with suprasellar extension group compared to the PA without suprasellar extension group (median (min; max); mean rank: 98.5 (57; 113); 21.8; 101 (61; 121); 21.48 and 102.5 (59; 116); 21.71 vs. 103.5 (95; 115); 30.2; 106.5 (90; 115); 30.61 and 104.5 (95; 113); 30.32), p = 0.043; p = 0.028 and p = 0.038, respectively). In the control group, significant positive correlations were found between optic disc area and the total RNFL thickness (r = 0.440, p &lt; 0.001). In the PA group, significant correlations were observed between optic rim area and total RNFL thickness (r = 0.493, p &lt; 0.001) and all quadrants, with the strongest in the nasal quadrant (r = 0.503, p &lt; 0.001). A moderate to strong negative correlation was found between visual field (VF) defects and RNFL thickness, with the strongest correlation observed in the superior quadrant. Conclusions: OCT offers a detailed insight into the microscopic structural and functional changes throughout the entire visual pathway in patients with PA. Our findings demonstrate a significant negative correlation between RNFL thickness and visual field defects, highlighting the clinical relevance of OCT measurements in visual function assessment. Moreover, the results suggest that optic rim area may be a more reliable indicator of RNFL thickness variations than optic disc area in patients with PA.<\/jats:p>","DOI":"10.3390\/jcm14124318","type":"journal-article","created":{"date-parts":[[2025,6,17]],"date-time":"2025-06-17T11:53:14Z","timestamp":1750161194000},"page":"4318","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":3,"title":["The Value of Optical Coherence Tomography in Patients with Pituitary Adenoma and Its Association with Clinical Features: A Pilot Study"],"prefix":"10.3390","volume":"14","author":[{"given":"Monika","family":"Duseikaite","sequence":"first","affiliation":[{"name":"Laboratory of Ophthalmology, Institute of Neuroscience, Lithuanian University of Health Sciences, Eiveni\u0173 Str. 2, LT-50161 Kaunas, Lithuania"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-0427-5568","authenticated-orcid":false,"given":"Alvita","family":"Vilkeviciute","sequence":"additional","affiliation":[{"name":"Laboratory of Ophthalmology, Institute of Neuroscience, Lithuanian University of Health Sciences, Eiveni\u0173 Str. 2, LT-50161 Kaunas, Lithuania"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Igne","family":"Dumbliauskaite","sequence":"additional","affiliation":[{"name":"Medical Academy, Lithuanian University of Health Sciences, Eiveni\u0173 Str. 2, LT-50161 Kaunas, Lithuania"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Brigita","family":"Glebauskiene","sequence":"additional","affiliation":[{"name":"Department of Ophthalmology, Medical Academy, Lithuanian University of Health Sciences, Eiveni\u0173 Str. 2, LT-50161 Kaunas, Lithuania"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Indre","family":"Zostautiene","sequence":"additional","affiliation":[{"name":"Radiology Department, Medicine Academy, Lithuanian University of Health Sciences, Eiveni\u0173 Str. 2, LT-50161 Kaunas, Lithuania"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Vita","family":"Rovite","sequence":"additional","affiliation":[{"name":"Latvian Biomedical Research and Study Centre, Ratsupites Str. 1-k1, LV-1067 Riga, Latvia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-5208-3253","authenticated-orcid":false,"given":"Sheng-Nan","family":"Wu","sequence":"additional","affiliation":[{"name":"Department of Neurology, National Cheng Kung University Hospital, Tainan City 704, Taiwan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Arimantas","family":"Tamasauskas","sequence":"additional","affiliation":[{"name":"Department of Neurosurgery, Hospital of Lithuanian University of Health Sciences, Kaunas Clinics, LT-50161 Kaunas, Lithuania"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-5395-923X","authenticated-orcid":false,"given":"Rasa","family":"Liutkeviciene","sequence":"additional","affiliation":[{"name":"Laboratory of Ophthalmology, Institute of Neuroscience, Lithuanian University of Health Sciences, Eiveni\u0173 Str. 2, LT-50161 Kaunas, Lithuania"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2025,6,17]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"118","DOI":"10.1055\/a-2209-0538","article-title":"Metabolic Syndrome Components in Patients with Pituitary Adenoma","volume":"56","author":"Escobedo","year":"2024","journal-title":"Horm. 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