Back to Health Risk Assessment â Body Composition Because water is contained primarily in fat-free tissues - the muscles - the percentage of total body water can vary widely between individuals. Those with a high percent body fat can be as low as 40% total body water, while very lean individuals and athletes can attain 70%. Water is the essential component of all vital fluids and the medium of transport in every biological exchange.
Definition of ophthalmology. : a branch of medical science dealing with the structure, functions, and diseases of the eye.
The medical specialty concerned with the eye, its diseases, and refractive errors. [ophthalmo- + G. logos, study]. /ophÂ·thalÂ·molÂ·oÂ·gy/ (ofâ³thal-molÂ´ah-je) the branch of medicine dealing with the eye, including its anatomy, physiology, and pathology.ophthalmologÂ´ic.