Description : The _______ the amount of light entering the eye. a)iris b)pupil c)cornea d)lens
Last Answer : a)iris
Description : Function of iris is to (a) move lens forward and backward (b) refract light rays (c) bring about movements of eye lids (d) alter the size of pupil.
Last Answer : (d) alter the size of pupil.
Description : When a person enters a dark room from bright light he is not able to see clearly for little while because ______ A. Eye is unable to adjust itself immediately B. Retina becomes insensitive ... is unable to dilate the pupil immediately D. Distance between the lens and retina take time to adjust
Last Answer : ANSWER: C
Description : When a person enters a dark room from bright light, he is not able to see clearly for a little while because the (a) eye is unable to adjust itself immediately (b) retina becomes insensitive ... is unable to dilate the pupil immediately (d) distance between the lens and retina takes time to adjust
Last Answer : Ans:(c)
Description : When a person enters a dark room from bright light he is not able to see clearly for a little while because the? A. Eye is unable to adjust itself immediately B. Retina becomes insensitive ... to dilate the pupil immediately (Answer) D. Distance between the lens and retina take time to adjust
Last Answer : C. Iris is unable to dilate the pupil immediately (Answer)
Description : True statements about the pupil include: a. it is controlled mainly by the autonomic system b. miosis increases the depth of focus for near vision c. a change in the pupil diameter from 2 to 8 mm increases the amount of light entering the eye by 16- fold d. all above
Last Answer : all above
Description : In eye donation, which one of the parts of donor’s eye is utilized? A. Lens B. Retina C. Cornea D. Iris
Description : In eye donation, which one of the following parts of donor's eye is utilized? (1) Iris (2) Lens (3) Cornea (4) Retina
Last Answer : (3) Cornea Explanation: Generally blindness is caused by the dryness and hardness of cornea. Cornea is a clear layer which helps passing of light. It is an outer layer and can be transfer from one person to another.
Description : In eye donation, which one of the following parts of donor’s eye is utilized ? A. Iris B. Lens C. Cornea (Answer) D. Retina
Last Answer : C. Cornea (Answer)
Description : When a person walking in bright sunlight enters a dark room, he is not able to see clearly for a little while because (a) The eye muscles cannot immediately change the focal length of the eye ... iris is unable to contract the pupil immediately (d) The iris is unable to dilate the pupil immediately
Last Answer : Ans:(d)
Description : When a person walking in bright Sunlight enters a dark room, he is not able to see clearly for a little while because (1) the eye muscles cannot immediately adjust the focal length of the eye ... is unable to contract the pupil immediately. (4) the iris is unable to dilate the pupil immediately.
Last Answer : the iris is unable to dilate the pupil immediately.
Description : A person will have brown eyes, blue eyes or black eyes depending on the particular pigment present in the : (1) Pupil (2) Cornea (3) Iris (4) Choroid
Last Answer : (3) Iris Explanation: Eye color is a polygenic phenotypic character determined by 2 distinct factors: the pigmentation of the eye's iris and the frequency-dependence of the scattering of light by the turbid ... iris stroma (located at the front of the iris), and the cellular density of the stroma.
Last Answer : Iris
Description : Light rays entering the eye is controlled by :
Last Answer : Light rays entering the eye is controlled by : A. Pupil B. Iris C. Cornea D. Lens
Description : Photoreceptors (Rods and cones) of eye are present in (a) Sclera (b) Cornea (c) Retina (d) Pupil
Last Answer : (c) Retina
Description : Most benign cause of postmenopausal bleeding Cervical polyp Atrophic vaginitis 112-Pt came by hx os sudden eye pain burning vision photophobia and by ex. Small pupil and keretic cell on cornea and cell in humorus Ttt Cyclospoine + corticosteroid
Last Answer : Cyclospoine + corticosteroid
Description : The colour of the eye depends upon the pigment present in - (1) cornea (2) iris (3) rods (4) cones
Last Answer : (2) iris Explanation: Eye colour is a polygenic phenotypic character determined by 2 distinct factors: the pigmentation of the eye's iris and the frequency-dependence of the scattering of light by the ... iris stroma (located at the front of the iris), and the cellular density of the stroma.
Description : In Eye donation, which part of the eye used? A. Retina B. Iris C. Cornea (Answer) D. Optic nerve
Description : In which part of the eye lies the pigment that decides the colour of the eyes of a person--? A. Retina B. Iris (Answer) C. Cornea D. Pupal
Last Answer : B. Iris (Answer)
Description : Sensitive pigmented layer of eye is (a) cornea (b) retina (c) sclerotic (d) iris.
Last Answer : (b) retina
Description : The colour of the eye depends upon the pigment present in (1) cornea (2) iris (3) rods (4) cones
Last Answer : iris
Description : In which part of the eye lies the pigment that decides the colour of the eyes of a person? (1) Cornea (2) Choroid (3) Iris (4) Vitreous body
Description : A small hole in the window of a closed room forms an inverted image of outside building on the opposite wall of the room. This happens because (a) the rays of light suffer lateral inversion on entering the ... propagation of light (c) the hole acts as a convex lens (d) the hole acts as a prism
Last Answer : Ans:(b)
Description : During accommodation for near: a. the spherical aberration of the eye increases b. the ciliary muscle relaxes c. the field of vision decreases d. the amount of light entering the eye increases e. the thickness of the lens increases
Last Answer : the thickness of the lens increases
Description : By which is the amount of light entering into the eye controlled
Description : which is the amount of light entering into the eye controlled?
Description : The amount of light entering into eye can be controlled and regulated by
Last Answer : Pupil
Description : The part of the eye having the largest refractive index is - (1) cornea (2) aqueous humor (3) lens (4) vitreous humor
Last Answer : (3) lens Explanation: Like a camera, the human eye uses a convex lens system to form a small, inverted, real image of an object in front of it. Lens is the part of the eye having the largest refractive index.
Description : The part of the eye having the larges refractive index is : (1) cornea (2) aqueous humor (3) lens (4) vitreous humor
Last Answer : (3) lens Explanation: The cornea represents the strongest part of the refracting power of the eye, providing about 80% of the power of the system. The index of refraction of the cornea is about 1. ... into the watery fluid known as the aqueous humor which has an index of refraction of about 1.336.
Description : _________ is liquid present in the space between the cornea and lens of the eye. a)aqueous humor b)vitreous humor c)humor d)mucous
Last Answer : a)aqueous humor
Last Answer : lens
Description : The transparent lens in the human eye is held in its place by (a) ligaments attached to the ciliary body (b) ligaments attached to the iris (c) smooth muscles attached to the iris (d) smooth muscles attached to the ciliary body
Last Answer : (a) ligaments attached to the ciliary body
Description : The transparent lens in the human eye is held in its place by (1) ligaments attached to the ciliary body (2) ligaments attached to the iris (3) smooth muscles attached to the iris (4) smooth muscles attached to the ciliary body
Last Answer : (1) ligaments attached to the ciliary body
Description : Pick up the correct statement from the following: (A) In astronomical telescope, the rays from the object after refraction at the objective are brought to a focus before entering the eyepiece to produce ... the objective traversing through the eyepiece, is called line of sight (D) All the above
Last Answer : (D) All the above
Description : The following are true about the lens: a. the anterior capsule is 10 times thicker than the posterior capsule b. the anterior surface has a greater radius of curvature than the posterior surface c ... the cornea d. the lens is more effective in absorbing light with long than short wave-lengths
Last Answer : during accommodation the lens moves towards the cornea
Description : Koeppe’s nodules are found in: a. Cornea b. Sclera c. Iris d. Conjunctiva
Description : Dense scar of cornea with incarceration of iris is known as: a. Adherent Leucoma b. Dense leucoma c. Ciliary staphyloma d. Iris bombe
Last Answer : ANSWER: A
Description : The following conditions can affect the pupil size: a. iris colour b. fatigue c. exercise d. all above
Description : Pick up the correct specification of Ramsden eyepiece from the following: (A) It consists of two equal piano convex lenses (B) The curved surfaces of Plano-convex lenses face each other (C) ... from a point on the diaphragm enter the eye as a parallel beam (D) All the above
Description : With regard to efferent pupillary defect: a. the pupil reacts poorly to light and accommodation b. anisocoria is a feature c. the affected eye has poor distant vision d. a lesion in the sympathetic pathway is a recognized cause
Last Answer : a lesion in the sympathetic pathway is a recognized cause
Description : In myasthenia gravis: a. the vertical muscles of the eye are more commonly involved than the horizontal muscles b. the pupil reaction to light is sluggish c. absent antibody to acetylcholine receptors exclude the diagnosis d. Cogan's twitch refers to involuntary twitching of the orbicularis
Last Answer : the vertical muscles of the eye are more commonly involved than the horizontal muscles
Description : When light fell on the eye, the pupil: a. does not constrict if the optic nerve is severed b. does not respond if the sympathetic system is not functioning c. does not respond if the cholinergic system is blocked d. does not respond if the pretectal nucleus is damaged
Last Answer : does not respond if the pretectal nucleus is damaged
Description : The colored part of the human eye that controls how much light passes through the pupil is called the?
Description : A far-sighted person, without optical correction, is typically able to see nearby objects more clearly in bright light. The reason for this phenomena is: w) bright light provides better ... bright light causes squinting which flattens the eyeball which tends to correct the far-sighted condition.
Last Answer : ANSWER: X -- THE PUPIL OF THE EYE NARROWS WHICH INCREASES THE DEPTH OF FOCUS
Description : The part of the human brain which is an important relay station for the sensory impulses and also is the origin of many of the involuntary acts of the eye such as the narrowing of the pupil in bright light is the: a) hypothalamus b) midbrain c) corpus callosum d) cerebellum
Last Answer : ANSWER: B -- Midbrain
Description : Space between cornea and lens is :-
Last Answer : Space between cornea and lens is :- A. Aqueous chamber B. Vitreous chamber C. Conjuctiva D. Iris
Description : Aqueous humour is formed by: a. Epithelium of ciliary body b. Posterior surface of iris c. Lens d. Pars plana
Description : How can you tell if you scratched you cornea or if you simply have something stuck in your eye?
Last Answer : answer:When scratched my corea while using my chain saw, the scratch was not visible. I went to the ophthalmologist who put a dye in my eye and then looled for the scratch under UV light. It showed up ... had to wait a couple of days for it to heal over. How could something that small hurt so bad?