Which power (low or high) will allow you to see more of the object?

Q: If someone is color-blind, which structure is malfunctioning? A.None B.Cones C.Cornea D.Rods…

A: Colour blindness is the inability to distinguish certain colours.

Q: The vestibular apparatus is located completely inside the head. If you close your eyes, how can you…

A: Vestibular apparatus is present in the inner ear. It consists of two structures of the bony…

Q: What is your visual acuity?

A: The intensity or clearness of vision, particularly for the vision which is reliant on the sharpness…

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: Which of these photoreceptor cells do not match their function? a) rods - night vision b) stavar -…

A: Receptors are the substances that receive some signal or a molecule to facilitate detection.…

Q: The focal length of the eye lens increases when eye muscles:(a) are relaxed and lens becomes…

A: Contraction or relaxation of ciliary muscles in an eye is responsible for focusing the object,…

Q: Explain why a person with normal binocular vision isable to judge distance and depth of close…

A: Images from each eye merge together to form a single 3D image and this image is called binocular…

Q: What region of the retina contains a high density of photoreceptor cells and allows for extremely…

A: The fovea centralis of the retina contains high-density photoreceptor cells and allows for extremely…

Q: A person with a myopic eye cannot see objects beyond 1.2 m distinctly. What should be the corrective…

A: Myopia is a defect in vision in which objects are seen only when present very close to the eyes. it…

Q: As you read the question, light enters your eye, is focused, detected, and then changed into…

A: Our visual organ is the eye. There are many parts 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: Blind-spot results: a. Right eye distance _______________________b. Left eye distance…

A: Blind spot also known as punctum caecum is a photo-receptor deficient area where optic nerve and…

Q: When you view a close object, your lens gets_____ . a. flatter c. darker b. rounder d. cloudier

A: ACCOMODATION The process of focusing on a nearby object causes 3 processes -  Convergence of eyes…

Q: Adjustment of the lens to focus on objects close to the vieweris calleda. convergence. c.…

A: Answer is d.) Visual accommodation.

Q: What is the near point of vision?

A: We see objects when light reflected by objects enters our eye and the image is focused on the retina…

Q: When you enter a dark room from bright lighted room you are blinded momentarily. Comment.

A: The vision during the day and the night are two separate perceptions in the eye. The day vision and…

Q: Contraction of a muscle usually puts more tension on a structure, but contraction of the ciliary…

A: Ciliary muscle present in the eye is a smooth muscle and mesodermal in origin and is responsible for…

Q: List the structures light travels through to reach thephotoreceptors of a human eye

A: Light moves towards the lens from the front of the eye (cornea). The cornea and the lens allow the…

Q: Since the visual images areprojected in an invertedmanner on the retina whydon't we see things…

A: Human eye consist of biconvex lens which help to form a real and inverted image of an object. Light…

Q: What is the least distance of distinct vision of a normal human eye?

A: Least distance of distinct vision of human eye is the minimum distance of an object from an eye to…

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: 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: hat power of accommodation of the eye, when object viewed from 20- 500cm from his eye.?

A: Eye power accommodation is changing the shape of lens and adjusting the focal length is states as…

Q: Match the type of vision below with the proper receptor (Rods or Cones) _____  A.  vision in…

A: In a human being, the eye receives the light reflected by an image and that visual signal is sent…

Q: Light rays from an object in the temporal half of the visual field strike which half of the retina?

A: The visual field may be defined as the total area of vision of our eyes. When our eyes are focused…

Q: Why is a normal eye not able to see clearly the objects placed closer than 25 cm?

A: The eye lens is composed of fibrous, jelly-like material. To see closure and distant object, Its…

Q: The size of the pupil is controlled by the O lens

A: The eye is the sensory organ that allows us to see. The eyes achieve vision with the help of visual…

Q: While a student is examining the anterior half of the eye in cadaver lab, the cadaver lens falls…

A: The lens is made up transparent  proteins called crystallins . The average concentration of lens…

Q: Describe how the ciliary muscle controls the shape of the lens.

A: The human eye contains a different structure that helps the eye to produce a clear vision of the…

Q: When you increase the magnification what happens to the visual field?

A: Microscope are instruments that are used in the science laboratories to visualise very minute…

Q: Explain how light is focused for close vision.

A: The Human eye lens is so designed so as to focus the light on retina. This is achieved by the…

Q: Paralysis of a medial rectus muscle would affect (a) accommodation,(b) refraction, (c) depth…

A: There are six extrinsic eye muscles that help to keep the eyeball in shape. They also regulate the…

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: 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: Match each of the options above to the items below. Iris Pupil Sclera Retina

A: The human eye is a specialized sense organ that reacts to light and is able to visualize images and…

Q: Name the part of eye which refract eye rays to focus on retina.

A: Eye is an organ responsible for sight/ vision. There are many structures which works together to…

Q: Your sister sits beside you as you watch your friend surf, but she cannot see him because she is…

A: Question is related to problem in the vision.  Detailed solution in step 2.

Q: What is the photoreceptor unit of a compound eye? How does this unit adjust to varying amounts of…

A: Compound eyes are found in annelids, molluscs and arthropods. Compound eyes are involved in the…

Q: A person’s eyes are perfect but they are completely blind. How is this possible

A: The absence of vision is referred to as blindness. It could also refer to a vision loss that is not…

Q: When you change your focus from near to a far object, describe the three main mechanisms occur in…

A: Introduction :- The human eye is a sense organ that responds to light to allow vision. Both the…

Microscopy

Microscopy is a technical field of study about the use of microscopes to observe small objects like cells and micro-organisms that are not visible to the naked eye. A microscope is used in the field of microscopy, in order to see the object or organism that cannot be seen easily. Microscopes help us to observe the fine structure of a cell and its content.