Which prefix signifies "eye"?

The prefix "ophthalmo-" is derived from the Greek word "ophthalmos," which means "eye." This prefix is commonly used in medical terminology to refer to conditions, treatments, and anatomical structures related to the eye. For example, terms such as "ophthalmologist" (a specialist in eye care) and "ophthalmology" (the study of eye diseases) both showcase the connection between this prefix and ocular health.

In contrast, the other prefixes provided relate to entirely different domains. "Thoraco-" pertains to the thorax or chest, commonly seen in terms like "thoracotomy," which is a surgical incision into the chest wall. "Hypo-" indicates a condition of being under or less than normal levels, often used in terms like "hypoglycemia," referring to low blood sugar levels. "Trans-" signifies crossing or moving across something, as seen in "transfusion," which involves transferring blood from one person to another. Each of these prefixes conveys specific meanings unrelated to the eye.