Distinguish between blind spot and yellow spot.

Q: How is the shape of the cornea maintained?

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

Q: Simply describe how light enters the eye

A: The visual system is made up of organs like the eyes. They enable animals to see, as well as receive…

Q: Describe the lens of the dissected eye.

A: The lens is a transparent biconvex structure in the eye, which along with the cornea helps to…

Q: Give the origin of Optic?

A: Optic nerve is a cranial sensory nerve which serves to relay visual information present at the…

Q: Is the nervous system responsible for the dilation of pupil?

A: Yes, ANS (Autonomic Nervous System)  sympathetic branch is known for triggering" flight or fight…

Q: Which are the Common Diseases of the Eye?

A: A disease is a state of unhealthiness of the physical body, mind and social interaction. A disease…

Q: Explain why one early symptom of vitamin A deficiency is the impaired vision at night?

A: Vision is a sense related to eyes. Eye is one of the sensory organs present in the body of an…

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: Describe the structure and function of accessory eye structures, eye layers, the lens, and humors of…

A: The human visual system is the one that includes the eye, the connecting pathways to the visual…

Q: Define about Optic chiasma ?

A: Optic Chiasma : It is an X shaped structure formed by the crossing of the optic nerves in the brain.…

Q: Explain the mechanisms of pupil constriction andpupil dilation.

A: The eye is the sensory organ that helps in vision. It helps in visualizing objects, color, light…

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: List some common diseases of the eyes?

A: The human eye is the most valuable and sensitive sense organ. It is a natural optical instrument.…

Q: Explain the condition of retinal detachment ?

A: Retinal detachment is an emergency where part of the eye like the retina pulls away from the…

Q: Explain why it is not uncommon to develop pink eye after having a cold?

A: Pink eye or conjunctivitis is a common eye infection caused due to bacteria or virus that normally…

Q: Identify and describe the three layers of the eyeball?

A: The eyeball is a bilateral and spherical organ that contains the mechanisms that enable one to see.…

Q: What are sign and symtoms of detached retina

A: Retinal detachment represents an emergency in which the retina (a thin layer of tissue) at the back…

Q: Describe the path of light through the eye.

A: Path of light through eye.

Q: What is the definition of tympanometry?

A: Tympanometry is a kind of examination which is used for testing: Status of middle ear Assessing the…

Q: Give exact location and function of optic nerve

A: The location of the c nerve is in the back eye. It is also known as cranial nerve or cranial nerve…

Q: Compare the signs of chronic glaucoma, acute glaucoma,cataract, macular degeneration, and detached…

A: The eye is the organ responsible for vision. There are two photoreceptors present that help in…

Q: Describe the eye defect that causes color-deficient vision.

A: The eyes are the main organ of the visual system. They are responsible for providing the animals…

Q: Describe the structure and function of the layers of the eye, the lens, and the humors of the eye.

A: Eye is a small ball shaped organ located within the bony sockets know as orbits. There is a pair of…

Q: Explain Mechanism of generation of light-induced impulse in the retina.

A: The human eye is an organ that reacts to light and allows vision. The human eye can differentiate…

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

A: The group of fat-soluble nutritional organic compounds retinol, retinal, and retinoic acid…

Q: How Correction of vision defects?

A: The eye is a part of the human body whose mechanism is almost same like that of a lens as it…

Q: Explain the phenomenon of referred pain?

A: Referred pain refers to mislocalisation of pain. This refers to the difference in the origin and the…

Q: Explain why one early symptom of vitamin A deficiency is impaired vision at night (often called…

A: Vitamin A : a. It is a class of nutritionally unsaturated hydrocarbons that include various…

Q: Explain why an eye has a blind spot.

A: Retina is a part of our eye on which image is formed. Rod and cone cells help in this image…

Q: (a) What is hypermetropia?(b) What are the two causes of this defect of vision?

A: Human eye is an organ that reacts to light and allows vision. Cone and rod cells in the retina allow…

Q: Why do rods provide greater visual sensitivity while cones provide better acuity?

A: Rods are cylindrical in shape and thin. Rods are more in number (120 million ). Cones are conical in…

Q: Difference between blind spot and yellow spot?

A: The human eye is a specialized sense organ capable of receiving visual images, which are then…

Q: Which of the following are associated with retina?

A: The retina is a layer that is transparent in nature. It is a light-sensing tissue in the back of the…

Q: What defect causes color blindness?

A: Colorblindness is disorder in which the person is not able to see certain colors or not able to…

Q: Differentiate between choroid and sclerotic layers of the eye on the basis of the function.

A: The eye can be defined as a structural organ that is located in the orbit of the skull. The eye…

Q: Explain Retinal ?

A: Introduction: The chromophore is a molecule that absorbs light of a specific wavelength and…

Q: Why are some painful sensations perceived at a distance from the site of injury (referred)?

A: The activation of nociceptors by thermal, mechanical, chemical, or other stimuli results in the…

Q: What is the nature of image formed on the retina of the eye?

A: The human eye is a sense organ. It reacts to light and allows vision. The cone and rod cells in the…

Q: Describe the formation of the embryonic eye.

A: INTRODUCTION Embryonic eye development is briefly described below.

Q: Differentiate between near vision and distinct vision on the basis of shape of the eye lens.

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

Q: which layer forms the white of the eye?

A: The human eye is one of the sense organs that can able to respond to light to sense vision. The rods…