{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,12,15]],"date-time":"2025-12-15T10:23:39Z","timestamp":1765794219476,"version":"3.48.0"},"reference-count":23,"publisher":"MDPI AG","issue":"24","license":[{"start":{"date-parts":[[2025,12,15]],"date-time":"2025-12-15T00:00:00Z","timestamp":1765756800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Cells"],"abstract":"<jats:p>Rare genetic ocular diseases represent a heterogeneous group of disorders that significantly impair visual function and quality of life. Despite their clinical relevance, many of these conditions remain insufficiently characterized due to complex molecular mechanisms and diagnostic limitations. Recent advances in molecular diagnostics, particularly Next-Generation Sequencing (NGS), have enabled comprehensive and accurate identification of pathogenic variants, offering novel insights into genotype\u2013phenotype correlations and supporting precision medicine approaches. In parallel, the use of alternative biological matrices such as tear fluid has emerged as a promising non-invasive strategy for biomarker discovery and disease monitoring. Tear-based omics, including proteomics and transcriptomics, have identified diagnostic signatures and pathogenic mediators such as non-coding RNAs, microRNAs, and tRNA-derived fragments (tRFs). Among these, tRF-1001 has shown potential both as a biomarker and therapeutic target in ocular neovascular conditions through its modulation of angiogenic pathways. The objective of this review is to show the integration of two rapidly advancing yet frequently isolated fields: next-generation sequencing-based genomics and tear-fluid molecular profiling, positioning them as complementary foundations of precision ophthalmology for rare inherited retinal and optic nerve disorders. Previous reviews have mainly concentrated on either genetic diagnosis or ocular surface biomarkers separately; however, we have introduced a convergent model wherein genomic data furnish diagnostic and prognostic clarity, while tear-omics deliver dynamic, minimally invasive assessments of disease activity, treatment efficacy, and persistent neurovascular stress. By explicitly connecting these two aspects, we have delineated how multi-matrix, multi-omics approaches can expedite early diagnosis, facilitate personalized longitudinal monitoring, and direct focused treatment interventions in rare ocular genetic illnesses.<\/jats:p>","DOI":"10.3390\/cells14241988","type":"journal-article","created":{"date-parts":[[2025,12,15]],"date-time":"2025-12-15T10:11:23Z","timestamp":1765793483000},"page":"1988","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Advances in Laboratory Methodologies and Biological Matrices for the Study and Management of Rare Ocular Genetic Diseases"],"prefix":"10.3390","volume":"14","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-7938-876X","authenticated-orcid":false,"given":"Fabiana","family":"D\u2019Esposito","sequence":"first","affiliation":[{"name":"Department of Medicine and Surgery, University of Enna \u201cKore\u201d, Piazza dell\u2019Universit\u00e0, 94100 Enna, Italy"},{"name":"Imperial College Ophthalmic Research Group (ICORG) Unit, Imperial College, 153-173 Marylebone Rd., London NW1 5QH, UK"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-1047-5363","authenticated-orcid":false,"given":"Bruna","family":"Lo Sasso","sequence":"additional","affiliation":[{"name":"Department of Medicine and Surgery, University of Enna \u201cKore\u201d, Piazza dell\u2019Universit\u00e0, 94100 Enna, Italy"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Cosimo Giuseppe","family":"Mazzotta","sequence":"additional","affiliation":[{"name":"Department of Medicine and Surgery, University of Enna \u201cKore\u201d, Piazza dell\u2019Universit\u00e0, 94100 Enna, Italy"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0009-0007-6807-9455","authenticated-orcid":false,"given":"Francesco","family":"Cappellani","sequence":"additional","affiliation":[{"name":"Department of Medicine and Surgery, University of Enna \u201cKore\u201d, Piazza dell\u2019Universit\u00e0, 94100 Enna, Italy"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-0999-5545","authenticated-orcid":false,"given":"Marco","family":"Zeppieri","sequence":"additional","affiliation":[{"name":"Department of Ophthalmology, University Hospital of Udine, 33100 Udine, Italy"},{"name":"Department of Medicine, Surgery and Health Sciences, University of Trieste, 34127 Trieste, Italy"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Daniela","family":"Bronzi","sequence":"additional","affiliation":[{"name":"Laboratory of Genomics, L.C. Laboratori Campisi, 96012 Avola, Italy"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-9297-8115","authenticated-orcid":false,"given":"Rosario","family":"Iemmolo","sequence":"additional","affiliation":[{"name":"Laboratory of Genomics, L.C. Laboratori Campisi, 96012 Avola, Italy"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Rosario","family":"Campisi","sequence":"additional","affiliation":[{"name":"Laboratory of Genomics, L.C. 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