Light Organ
The Human Eye: Functions and Vision Disorders
The human eye is a small organ but it is a complex unit that performs a number of functions that are essential to the human body. It is the primary organ that gives humans the sense of sight, which helps humans move around and react to their surroundings.
The eye reacts to the light that enters it. This sense organ enables humans to have a perception of depth and distance, and gives the ability of color differentiation. It is said that the human eye can distinguish around ten million colors. The eyes of other animals and species can probably identify more.
The human eye is made up of rod and cone cells that enable it to perform its light reaction and color identification functions. It also has lenses that facilitate a person’s ability to view objects at various distances.
One of the factors that affect the function of the eye is visual acuity. It refers to the clearness of a person’s vision. A person with good eyesight is said to have 20/20 vision. This usually means that the lenses and other parts of the eyes are in good condition. An
eye doctor in Indianapolis
will be able to assist a patient in determining whether his vision is good or not.
However, there are cases wherein the vision disorders are either in-born or inherited. Some people who have bad eyesight can have their visions corrected with the use of glasses, contact lenses, or through laser surgery. The
20 20 vision Indianapolis
patients should always be taken care of.
Because of the important functions of the eye, having a vision disorder can be a great inconvenience to a person. For instance a person who has myopia, or is nearsighted, has difficulty in seeing objects that are far away. On the other hand, a person with hyperopia or farsightedness has difficulty in seeing objects that are up close. These eye conditions usually require prescriptions such as eyeglasses or contact lenses to give a patient better vision. Visual impairments like these, and their corrective treatments, should be diagnosed and prescribed by professional ophthalmologists and optometrists, like an
eye doctor Indianapolis
patients trust.
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