IOP stands for "Intraocular pressure," which refers to the pressure inside the eye that helps maintain the shape of the eyeball. However, there are some other synonyms for the word IOP. These include eye pressure, ocular pressure, and intraocular tension. These terms are often used interchangeably by doctors and ophthalmologists to describe the level of pressure within the eye. High IOP levels can lead to glaucoma and other eye disorders, so it's essential to monitor and maintain healthy levels. With proper treatment or management, individuals can control their IOP levels and prevent vision loss. Therefore, if you notice any changes in your vision or experience symptoms such as eye pain or headaches, consult an eye specialist immediately.