Acquired nasolacrimal duct obstruction: clinical and histological findings of 275 cases.

Background: Acquired nasolacrimal duct obstruction is a blockage of the lacrimal outflow system usually caused by local nonspecific inflammation of the lacrimal sac and the nasolacrimal duct. However, cases exist where the primary nasolacrimal system obstruction is caused by malignancies. Our aim was to investigate lacrimal sac pathologies in patients with acquired nasolacrimal duct obstruction and compare their clinical manifestations.

Age-related changes in corneal thickness and endothelial characteristics.

Purpose: To determine the influence of age on central corneal thickness (CCT), endothelial cell density (ECD), average cell size, coefficient of variation in cell size, and percentage of regular hexagonal cells; and to estimate the average ECD and CCT in seven age groups.

Materials And Methods: After obtaining informed consent, 211 Caucasian patients (358 eyes) were examined using a noncontact specular microscope at the Center of Eye Diseases in Vilnius University Hospital Santariskiu Clinic. The main corneal parameters were: ECD, average cell size, coefficient of variation in cell size, percentage of regular hexagonal cells, and CCT.

Ocular surface reconstruction using amniotic membrane following excision of conjunctival and limbal tumors.

Purpose: To report the clinical results of patients treated by preserved human amniotic membrane transplantation (AMT) following the removal of conjunctival and limbal tumors.

Methods: Retrospective noncomparative interventional case series of 9 patients (9 eyes) who underwent AMT after removal of conjunctival and limbal tumors with lesion-free margins and perilesional cryotherapy.

Results: The excised tumors were histopathologically examined and included 2 squamous cell carcinomas, 2 papillomas, and 5 nevi.