An elderly man with normal vision develops cataracts. He is surgicallytreated by removing the lenses of his eyes. What kind of glasses shouldhe wear to compensate for the removal of his lenses?

Q: What is the function of the optic chiasma?

A: Optic chiasma is found beneath the hypothalamus in the brain. It is found in all vertebrates.

Q: Should the cornea's curvature be changed bigger or smaller to get the desired effect while treating…

A: If the cornea, which is the transparent front surface of the eye, is overly curved or the eyeball is…

Q: Why do many older people have trouble hearing speech in spite of wearing hearing aids?

A: Hearing aids are small electronic devices that assist an individual with hearing. This device…

Q: Is there anything unique about Broca's area? is there anything of interest clinically in the lens of…

A: The brain is divided into four major regions such as cerebrum, diencephalon, cerebellum, and…

Q: Name the two structures in the eye responsible for bringing about the change in the shape of the…

A: The eye is one of the sensory organs present in the body of an organism. It is responsible for…

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: What makes the lens of the eye clear? What happens when cataracts form?

A: The eye lens is the biconvex transparent structure that refracts light and focuses on the retina. It…

Q: When Maddie’s physician examines her ear, he explains to her parents that she has a perforated…

A: Eardrum is a thin flap of tissue found between the ear canal and the middle ear. This structure is…

Q: You are in your kitchen looking out of the window watching a group of people 100 m in the distance.…

A: The retina is the photosensitive layer in eyes that contain rod and cone cells. If light exposed on…

Q: What superficial accessory structure of the eye would be the first to be affected by inadequate tear…

A: Eye is one of the sensory organs present in the body of an organism. It is responsible for sensing…

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: Anatomically, what causes a blind spot on the retina?

A: The ganglion cells of the retina have their axons continuing into the optic nerve, also known as the…

Q: Diving to the bottom of a deep pool will sometimes cause discomfort in the middle ear. Explain the…

A: Human Ear serves the specific purpose of detecting and interpreting sound. The ear is the organ that…

Q: State the parts of the ear that have been damaged in someone with a) nerve deafness b) conduction…

A: The ear is one of the sense organs that helps in hearing and also maintains the body's balance. It…

Q: a unitaleral lesion in which of the following structures is most likely to cause deafness in one…

A: The organ of hearing "ear" has  functional attributes of hearing as well as maintaining coordination…

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: Why would high air pressure in the middle ear reduce themovements of the basilar membrane of the…

A: The basilar membrane is a stiff structural element within the cochlea of the inner ear which…

Q: What is the name of the eye burn that can occur in a fraction of a second?

A: Eyes are referred to as the special sense organs that a principal is responsible for perception of…

Q: Otitis media is a very common ear infection that children tend to suffer from. How does this…

A: Hearing is of the special senses present in the human body, and ears are the organs concerned with…

Q: Name the eye defect occuring in old people whereby they are unable to see near objects.

A: Eye is the chief organ of the visual system. In most mammals they are paired structures and are oval…

Q: In a condition called presbyopia, the eyes’ lenses lose muchof their elasticity and maintain a flat…

A: The eye is the organ of visual system that consists of rod and cone cells. These cells are present…

Q: What is the function of the uvula?

A: The uvula is a piece of soft tissue that hangs down the back of your neck in the shape of a…

Q: Which tunic/layer of the eye is the most difficult to cut?

A: The eye is the organ of visual system that consists of rod and cone cells. These cells are present…

Q: If an infant is born with dense cataracts on both eyes and they are surgically removed years later,…

A: A cataract occurs whenever the generally clear lens in one's eye would become cloudy. Light travels…

Q: A mother notices that her preschooler, Darlene does not always respond when called. It also seems…

A: Sensual experiences serve as a mediator in the relationship between a person and their immediate…

Q: What do you mean by cataract and how it can be corrected?

A: Introduction  Cataract is the disease associated with the eye lens. Cataract is referred to the…

Q: (a) What is the difference, if any, between a semicircular canal and semicircular duct? Between the…

A: Sensory organs of the body are windows of the brain, because they keep the brain aware of what is…

Q: Persistent exposure to loud noise can cause loss of hearing, especiallyfor high-frequency sounds.…

A: In the mammal, an ear is the organ of hearing and its balance in the body. The ear is made up of…

Q: Which type of hearing loss—conductive deafness or nerve deafness—would be more common among members…

A: Introduction: There are two stages of hearing loss- continuous hearing and sensory impairment. This…

Q: which cannot be corrected by any type of spectacle lenses?

A: The eye is a complicated organ that works in conjunction with other organs to provide vision…

Q: Name the internal layer of the eye which prevents reflection of light.

A: An eyeball is a spherical structure that helps in vision which fits in an eye skeleton known as bony…

Q: When the ciliary muscle is contracted, the following will: a) lens to become more spherical b)…

A: Eyes are the sense organs involved in the sense of vision.

Q: Where in the eye does the main refraction take place? a) in the ventricular fluid b) in the…

A: Introduction:-  Like a camera, the human eye focuses light to produce sharp images. Refraction is…

Q: Which convex lens is called as converging lens?

A: A convex lens is a lens with two spherical surfaces that bulge outward from the middle. Therefore,…

Q: How might nasal congestion (a “stuffy” nose) interfere with olfaction?

A: Nasal congestion is a very prevalent problem of the people. It creates and blocks the nose due to…

Q: What is a blind spot of the eye?

A: When the light reaches to our retina, it sends electrical bursts with the help of the optic nerve to…

Q: Choose an auditory disorder, and indicate where the pathology lies (outer ear, middle ear, inner…

A: The ear is divided into 3 parts Outer ear  : Pinna , external auditory meatus,  tympanic membrane…

Q: Eyelids that separate may be corrected by: a. a surface pack of cavity fluid b. stretching and…

A: Eye lid is a thin layer of skin which covers the eyes of the person from the outside elements. The…

Q: Is the round window part of the inner ear or the middle ear?

A: The ear is an organ capable of sensing sound that allows us to hear. In humans, the ear contains…