A sensory organ converts external environmental stimuli into usable information for the organism. The stimuli converted into electrical impulses reach the brain via the nerve fibers and are processed there into the actual perceptions. Diseases of the individual sensory organs often lead to the failure of one of the five senses. What are the sensory … Sensory Organs: Structure, Function & Diseases
The retina is located on the back of the inner wall of the eye and is instrumental in creating image information for the brain. Age, disease, and congenital disorders can impede the function of the retina, which has a complex structure, in many ways. A large number of successful therapeutic procedures exist. What is the … Retina: Structure, Function & Diseases
Photoreceptors are light-specialized sensory cells on the human retina. They absorb various electromagnetic light waves and convert these stimuli into bioelectrical excitation. In hereditary diseases such as retinitis pigmentosa or cone-rod dystrophy, the photoreceptors perish bit by bit until blindness occurs. What are photoreceptors? Photoreceptors are light-sensitive sensory cells that are specialized for the visual … Photoreceptors: Structure, Function & Diseases
The eye is considered the most important sensory organ in humans. The eye enables optical perception, vision. This is done in cooperation with the brain – the eye receives light stimuli, which are processed brain for optical perception. What is the eye? A cross-section of the human eye showing its anatomical components. Click image to … Eye: Structure, Function & Diseases
Synonym Amaurosis On the one hand, childhood is to be mentioned here, since children can injure themselves so badly by sharp and pointed objects while playing or frolicking around that their eyesight cannot be saved despite immediate help from an eye doctor. The second peak in the incidence of eye injuries is in adulthood, as … Causes of blindness
Color blindness is one of the color vision disorders and can be congenital or acquired. Color vision disorders, sometimes called color sense disorders, include color vision deficiency and the various forms of color blindness. Congenital color blindness remains constant in its course and does not worsen. Acquired color vision disorders, however, can worsen in progression … Color Blindness: Causes, Symptoms & Treatment