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This phase II trial studies how well artificial tears works in reducing radioiodine levels in the nasolacrimal duct system in patients with thyroid carcinoma following radioiodine therapy. Radioactive iodine therapy for thyroid carcinoma has been associated with nasolacrimal duct obstruction. Artificial tears may dilute the amount of radioactive iodine in the tears of the eyes, thus decreasing uptake by the cells lining the nasolacrimal duct system.

This trial studies how well infrared autofluorescence via PTeye works in detecting parathyroid glands during total thyroid surgery. Located closely to the thyroid gland are the parathyroid glands, which are important organs that regulate calcium levels in the body. Thus, it is essential for a surgeon to correctly identify this structure when performing a thyroid surgery. PTeye may help surgeon to identify and preserve healthy parathyroid glands during surgery. By assisting the surgeon in correctly identifying parathyroid glands, this device may improve the quality of the operation performed on the patient.