transpupillary

Transpupillary is an adjective describing procedures or techniques in which light or energy is delivered through the pupil to reach tissues inside the eye. The term derives from Latin trans- meaning through and pupilla meaning pupil, and it is most commonly used in ophthalmology and related medical fields.

In ophthalmology, transpupillary approaches are used for both diagnostic imaging and therapeutic interventions. Examples include transpupillary thermotherapy, a treatment that delivers infrared energy through the pupil to heat intraocular tissues, often used for certain intraocular tumors. Transpupillary photocoagulation refers to directing laser energy through the pupil to coagulate target retinal or choroidal tissue. Successful application typically requires adequate pupil dilation, a clear optical media, and appropriate expertise with laser equipment.

Risks and limitations should be considered, including potential damage to the lens, retina, or other ocular structures if energy is misdirected or improperly calibrated. The technique is specialized and generally performed by trained ophthalmologists in appropriate clinical settings. While most discussions of transpupillary focus on ocular use, the general concept can apply to any procedure that targets internal structures by passing energy through the pupil.