The correct answer of the question given above would be the term PERIOD. For a wave, PERIOD is defined <span>as the time elapsed between two successive crests, or two successive troughs, passing by the same point in space. Hope this answer helps. </span>
This is an epidemic form of conjunctivitis which almost always affects both eyes. The patient may complain of a foreign body sensation, with watering, discharge, redness, and swelling of the lids. They may also complain of the eyes being sensitive to light, with blurred vision.
