Why does one feel blinded for a short while on coming out of a dark room.

Q: Why can the retina pull away from the back of the eyeball?

A: The retina is the thin layer of the tissue, which is present at the eyeball's back. The retina is…

Q: Why can the retina pull away from the back of the eyeball?

A: Retina is the part of the eye where the image is formed. Retina is made up of photosensitive cells…

Q: What's the difference between distant object focus and close object focus in terms of eye movement…

A: Humans have five special senses namely sight, hearing, smell, taste and touch. Of these sight is…

Q: Why does the blind spot from the optic disc in either eye not result in a blind spot in the visual…

A: Retina,  is a thin membrane of neural tissue at the back of eye, are composed  photoreceptors. When…

Q: What’s special about the fovea centralis (central fovea)? explain why we move our eyes to see a…

A: The Fovea centralis is located in the center of the macula lutea of the retina. The macula lutea is…

Q: How can we smell different things?

A: Introduction: Olfactory systems control the location of pheromones and subsequently prompt related…

Q: What is shape of lens during near vision and distinct vision.

A: The biconvex transparent structure in the eye is the lens. It facilitates the refraction of light to…

Q: Defintion of Vision's Chemistry?

A: -Light is absorbed by a pigment in a photoreceptor cell (by a dye in the eye), and the resulting…

Q: In attempting to discern distant details, people will sometimes squint. Why does this help?

A: Squint it is defined as disorder of the eyes do not look exactly the same direction at the same…

Q: Why does your near point of vision move farther away as you age?

A: Beginning in the early to mid-40s, many adults may start to have problems seeing clearly at close…

Q: Why do we sniff when we wish to smell something better?

A: The nose is the primary sense organ of smell. It is a part of the respiratory system. The olfactory…

Q: Why doesn't the blind spot interfere with our normal vision?

A: Our eyes are sense organs for vision. They also help in perception of colour. Human beings have two…

Q: Explain why deficiency of vitamin A causes poor night vision or night blindness.

A: Night blindness: It is an impairment of vision. It is also known as nyctalopia. During the dim…

Q: What is the ability to recognize colors despite changes in lighting?   Brightness…

A: The ability to recognize colors despite changes in lighting is a phenomenon in visual perception…

Q: Why does rubbing your closed eyes (as you might if you’re tired or your eyes itch) produce a visual…

A: It can mean many things to rub your eyes. You may have an infection of the skin, allergies, or a…

Q: Why do you suppose that you are not normally aware of the blind spot in each eye?

A: Humans have a well-developed visual system comprising of eyes and brain. The last part of the eye…

Q: Give technical term for eye lens loosing flexibility resulting in kind of long sightedness in…

A: Long-sightedness is a condition in which a person is not able to see nearby objects. The distant…

Q: Retina Lens Sclera Pupil Optic nerve Cornea Vitreous Iris humor a. Why the vitreous humor must be…

A: Vitreous humor is a thick clear gel that is present between the lens and retina. The clear gel…

Q: A person’s eyes also dilate when they get drunk. What effect does this have on vision (not to…

A: Alcohol is formed when the yeast boils (breaks without oxygen) sugar in different foods. For…

Q: Why the eye is unable to see distant objects clearly?

A: The eyes are sensory organs in the human which are responsible for interception of light senses from…

Q: All the following are components of the vestibular apparatus, except :-a- crista ampullarisb-…

A: The ear is the hearing organ and it is divided into three segments that include the inner, outer,…

Q: How is the semicircular canals different from the vestibule and how are they different from the…

A: Human ears consists of external ear, middle ear and inner ear regions. Each and every region houses…

Q: This transfers and amplifies vibrations from the tympanic membrane to the oval window. Which one ?…

A: Step 1 The human ear is a part of the sense organ that helps us to hear the sound around us. The ear…

Q: Thinking as a nurse, how can you best serve your patients who are in a state of illness that their…

A: As a nurse, it is of vital importance to comprehend how disease and medications can bear on…

Q: The crystalline lens regularly comes into contact with what fluids and tissues?   iris, zonules,…

A: The cornea and the lens work together to assist refract light so that it is focused on the retina.…

Q: Effective hearing requires the use of three essential organs.

A: Hearing is performed by one of the sense organs. Actually we hear the sound, which is a sort of…

Q: What happens to the pupil of the eye when the light is very bright?

A: The pigmented portion of the eye which is present in the eyeball's middle layer (vascular tunic) is…

Q: What should be the strength of an odor that is basically nontoxic in nature so that it is able to…

A: When the odor molecules bind to these smell receptors, they trigger a signal to the brain telling it…

Q: Why is the eye "strained" more upon viewing nearby objects then far objects?

A: An eye is the vital organ needed for sight which reacts to light and allows vision. It has…

Q: Cochlear implants are devices that can be used to restore hearing in some individuals. The implant…

A: When the person is not able to hear from one or both ears because of any conductive or…

Q: Why do we detect faint light more effectively in the periphery of the retina than in the fovea?

A: Faint light or dim light is detected by rods in retina

Q: Why is it difficult to see colors in dim light?

A: The back portion of the eye that responds to light is called the retina. This is carried out with…

Q: Are the blind spots of your right and left eyes at the same distance?

A: The retina of human eyes are made up of light sensitive cells through which the messages are send to…

Q: Using the terms below, what is the order of the visual pathway elements in order from eye to cortex?…

A: The visual pathway is a complex and highly specialized system that allows us to see and interpret…

Q: Why can you see an object better in dim light by looking to the side of it instead of directly at…

A: The visual organ is the eye. The cornea, pupil, iris, lens, retina, optic nerve, macula, choroid,…

Q: What effect does sympathetic nervous system stimulation have on pupil diameter? It is known that…

A: The nervous system controls and coordinates all the activities in the body. It is majorly classified…

Q: How might being in a place with less gravity than Earth has (such as Earth’s moon) affect vestibular…

A: The vestibular sense contributes to our ability to maintain balance and body posture. The major…

Q: why do some patients suffering from cerebral palsy also suffer from hearing and eyesight…

A: Cerebral palsy (CP) is a collection of conditions that impact a person's ability to move, balance,…

Q: What’s special about the fovea centralis (central fovea) and why we move our eyes to focus closely…

A: The eye is the organ of vision. The eye has various segments which incorporate however are not…

Q: cause a problem for a driver with red-green perception deficiency.

A: Red-green color blindness is a genetic disorder where the person is not able to distinguish between…

Q: In which layer of the eyeball are the photoreceptors found

A: Photoreceptors can be defined as the type of cells which respond to the light entering the eyes.…

Q: If the distance between your eye's lens and retina is too short, you will have difficulty seeing…

A: Introduction :- The retina is a layer of nerve tissue that covers the inside of the back two-thirds…