Mark, a 75-year-old grandfather, complained that his vision was becoming obscured. Upon examination by an ophthalmologist he was told he had cataracts. What are they, how do they occur, and how are they treated?

Q: 48 A 56-year-old woman gradually loses vision in the temporal parts of the visual fields of both…

A: A neoplasm is an abnormal mass of actively dividing cells in the body. It may be classified as…

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: which cells direct colored light? Are these cells in the choroid,sclera, or retina layer of the eye?

A: The eye has rods and cones. Rods help us to see in the dark. Cones help us to see in bright light.

Q: Why is aqueous humor important?

A: The aqueous humor is a translucent water-like liquid comparable to plasma, but carrying low protein…

Q: What would cause the greatest loss of visual function—trauma to cranial nerve III, IV, or VI? Why?

A: Cranial nerves are the set of nerves that arise out directly from the brain or brainstem. Cranial…

Q: What is night blindness?What causes night blindness?How can it be remedied?

A: Vision refers to the power of sensing with eyes. Eye is the chief organ of the visual system that…

Q: Visit this site (http://openstaxcollege.org/l/NYTmeningitis) to read about a man who wakes witha…

A: Microorganisms are small organism that cannot be seen by naked eyes. Microorganism can be harmful to…

Q: What is the difference between ototoxicity and cochleotoxicity?

A: Several reasons can hamper the hearing problems by the ears. Ototoxicity and coxhleotoxicity are two…

Q: What are couple of examples of vascular changes in the back of the eye and their implications?

A: The energy that allows us to see is known as light. A source of light, such as the Sun, emits light.…

Q: Why is the occlusion effect occuring in patients with middle ear disorders?

A: Auditory masking occurs when the perception of one sound is affected by the presence of another…

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: If Kari is diagnosed with glaucoma, what is the most likely treatment? Describe the treatment…

A: Glaucoma is known as a disease mainly found in the eye and frequently occurs in old age people and…

Q: Describe the vitreous humor of the dissected eye.

A: The eye is the organ of the vision. The structure of the eye consists of the iris, cornea, retina,…

Q: What are symptoms and treatment optioins for cataracts, macular degeneration, and glaucoma?

A: Eye conditions like cataracts, macular degeneration, and glaucoma cause low vision, especially in…

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: Mention the benefits of the third eyelid in surgery to treat corneal ulcers

A: The cornea is the transparent, dome-shaped outermost layer of the eye that covers the iris, pupil,…