This observational study aims to evaluate the potential relationship between the severity of periodontal disease and retinal layer thickness in patients with glaucoma. Adult individuals with and without a clinically confirmed diagnosis of glaucoma will be included in the study. Periodontal health status will be assessed using standard clinical parameters, such as plaque index, probing pocket depth, clinical attachment loss, and bleeding on probing. Retinal layer thickness will be measured using high-resolution optical coherence tomography (OCT) imaging. The collected data will be analyzed to determine whether the severity of periodontal disease in glaucoma patients is associated with changes in retinal morphology. This study is expected to provide new scientific evidence regarding the potential link between oral inflammatory conditions and ocular health, and to contribute to a better understanding of the possible interaction between periodontal disease and glaucoma.