SPH can have several meanings depending on the context:
- In eyeglass prescriptions, SPH stands for Sphere. It indicates the amount of lens power, measured in diopters, needed to correct nearsightedness (myopia) or farsightedness (hyperopia). A negative SPH value means nearsightedness, while a positive value means farsightedness. The higher the absolute number, the stronger the prescription needed to correct vision
- In physics and computer simulations, SPH stands for Smoothed-Particle Hydrodynamics , a computational method used for simulating fluid flows
- In BDSM and internet slang, SPH can mean Small Penis Humiliation , a form of verbal erotic humiliation involving consensual degradation related to penis size
- In the furry fandom and plushophilia communities, SPH can refer to Strategically Placed Hole , meaning a hole in a plush toy intended to simulate genitalia
The most common and widely recognized meaning of SPH, especially in everyday use, is the sphere measurement on an eyeglass prescription that determines lens power for correcting vision
