Description : If you do not pass the vision screening standard you will be referred to an optometrist or ophthalmologist to have your vision further tested?
Last Answer : Feel Free to Answer
Description : Give reason: A convex lens is used to correct hypermetropia.
Last Answer : In a hypermetropic eye, light is focused behind the retina. A convex lens will force it to form on the retina. Hence a convex lens is used to correct hypermetropia.
Description : Ability of the eye to see objects at all distances is called (a) Binocular vision (b) Myopia (c) Hypermetropia (d) Accommodation
Last Answer : Ans:(d)
Description : Cylindrical lens is used by a person suffering from - (1) astigmatism (2) myopia (3) hypermetropia (4) None of these
Last Answer : (1) astigmatism Explanation: A cylindrical lens is typically used to focus, condense or expand incoming light. A cylindrical lens has one cylindrical surface, causing light to be focused in a single dimension or axis.
Description : What is the meaning of the name Rajat ?
Last Answer : Silver name means silver.
Description : What type of lens is used to correct vision of a person suffering from Myopia?
Last Answer : Concave lens
Description : What type of lens is used to correct vision of a person suffering from Myopia? (1) Convex lens (2) Concave lens (3) Crossed lens (4) Cylindrical lens
Last Answer : (2) Concave lens Explanation: Near-sightedness, also known as short-sightedness and myopia, is a condition of the eye where light focuses in front of, instead of on, the retina. This causes distant objects to be blurry while close objects appear normal.
Description : Who is the best Ophthalmologist in Dallas, Texas?
Last Answer : The best Ophthalmologists in Dallas, Texas are in the practice Syrquin, Kozielec and Allen. Their office is off of I-75.
Description : Verrryy long scenario of old age pt with DM, HTN, hx of multiple cardiac attack, CVA, came for routine check up in PHC, u found bilateral opacification in both lenses, with decreasing of visual ... glaucoma medication for weeks came with SOB, cough the cause a- timolol b- betoxolol c- pilocarpin
Last Answer : a- timolol
Description : Is contact lens exam the same thing as vision eye exam?
Last Answer : I believe the exam is the same, but with the contact lens exam the optometrist checks and measures your eyes for the proper fitting of contacts.
Description : Can I replace the lens on my night vision binoculars?
Last Answer : You should be able to, personally I would go to a professional repairman instead of trying to fix it myself. Price compare first, so you don't get ripped off.
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 : Among the defects of eye, the shortsightedness is called - (1) coma (2) hypermetropia (3) myopia (4) astigmatism
Last Answer : (3) myopia Explanation: Myopia, commonly known as being nearsighted and shortsighted. It is a condition of the eye where the light that comes in does not directly focus on the retina but in ... . It may also be corrected by refractive surgery, though there are cases of associated side effects.
Description : For a person having hypermetropia, the near point is ______. (1) Greater than 20cm (2) Lesser than 25cm (3) Greater than 25cm (4) Lesser than 30cm
Last Answer : (3) Greater than 25cm Explanation: The near point of a person suffering from hypermetropia is 75 cm. calculate. The near point of a person suffering from hypermetropia is 75 cm. Calculate the focal length ... lens required to enable him to read the newspaper which is kept at 25 cm from the eye.
Description : Distant objects are visible as a little out of focus in this condition – (1) presbiopia (2) hypermetropia (3) astigmatism (4) myopia
Last Answer : (4) myopia Explanation: Myopia, also known as nearsightedness and short-sightedness, is a condition of the eye where the light that comes in does not directly focus on the retina but in front of it, causing ... at a distant object to be out of focus, but in focus when looking at a close object.
Description : A man cannot see clearly beyond 10 meters. The disease he suffers from : (1) Far sight (2) Myopia (3) Cataract (4) Hypermetropia
Last Answer : (2) Myopia Explanation: The man suffers from myopia, a vision condition in which close objects are seen clearly, but objects farther away appear blurred. Nearsightedness occurs if the eyeball is too ... a result, the light entering the eye isn't focused correctly and distant objects look blurred.
Description : For a person having hypermetropia, the near point is – (1) greater than 25 cm (2) greater than 50 cm (3) less than 25 cm (4) infinity
Last Answer : (1) greater than 25 cm Explanation: For a hyper-metropic eye ,the near points shift away from the eye Le. farther away from the normal near point (25cm). In a hypermetropic eye, the light ... behind the retina. Here a person sees well for distance but near vision is difficult and causes strain.
Description : ______ is the defect which occurs in eye due to excessive curvature of cornea and person is not able to see distant objects clearly . a)myopia b)hypermetropia c)squint d)cataract
Last Answer : a)myopia
Description : Among the defects of eye, the shortsightedness is called (1) coma (2) hypermetropia (3) myopia (4) astigmatism
Last Answer : myopia
Description : Distant objects are visible as a little out of focus in this condition : (1) presbiopia (2) hypermetropia (3) astigmatism (4) myopia
Last Answer : Myopia
Description : Hypermetropia or longsight can be corrected by using : (1) Bifocal lenses (2) Cylindrical lenses (3) Concave lenses (4) Convex lenses
Last Answer : Convex lenses
Description : For a person having hypermetropia, the near point is (1) greater than 25 cm (2) greater than 50 cm (3) less than 25 cm (4) infinity
Last Answer : greater than 25 cm
Description : Nikon Photographers: Can you please recommend me a cheap 50mm lens for a D40?
Last Answer : answer:Great site for exactly what you are looking for. http://lenshero.com/
Description : What would be the kind of attire Count Dracula would have worn that was closest to Stoker’s vision in his novel?
Last Answer : ~Birthday suit? It is his castle. Right?
Description : What do you think of ‘Every man takes the limits of his own field of vision for the limits of the world.’ (Schopenhauer)?
Last Answer : sounds like the basis of the common argument from ignorance i consider it largely true
Description : A sharpshooter hung up his hat and put on a blindfold. He then walked 100 yards, turned around, and shot a bullet through his hat. The blindfold was a perfectly good one, completely blocking the man's vision. How did he manage this? -Riddles
Last Answer : He hung is hat on the barrel of his gun.
Description : What did Joseph Smith hope to achieve by telling people his vision?
Last Answer : Need answer
Description : In ____ style, project manager shares his or her vision with the team but permits them to use their respective ideas to come up with a solution.
Last Answer : Ans. Authoritative
Description : When the patient tells the nurse that his vision is 20/200, and asks what that means, the nurse informs the patient that a person with 20/200 vision a) sees an object from 20 feet away that a person ... 20/20 line, the person of normal vision will be standing at a distance of 20 feet from the chart.
Last Answer : a) sees an object from 20 feet away that a person with normal vision sees from 200 feet away. The fraction 20/20 is considered the standard of normal vision.
Description : What was the most significant trend in the evolution of modern man (Homo sapiens) from his ancestors? (1) Upright posture (2) Shortening of jaws (3) Binocular vision (4) Increasing cranial capacity
Last Answer : (4) Increasing cranial capacity
Description : If a child is a back bencher and is unable to watch the black board clearly. As a result he stands, sees and sits repeatedly. What inference will you draw regarding the case? Options: A) The child is ... is under shining effect of light C) The child has defective-vision D) both (a) and (C)
Last Answer : D) both (a) and (C)
Description : Which one of the following is the correct difference between rod cells and cone cells of our retina? Rod cells Cone cells (a) Overall Vision in poor Colour vision function light and detailed ... of retina all over retina (c) Visual acuity High Low (d) Visual pigment Iodopsin Rhodopsin contained
Last Answer : (a) Overall Vision in poor Colour vision function
Description : Which of the following statements is not correct? (a) An action potential in an axon does not move backward because the segment behind is in a refractory phase. (b) Depolarisation of hair cells ... d) In the knee-jerk reflex, stimulus is the stretching of muscle and response is its contraction.
Last Answer : (c) Rods are very sensitive and contribute to daylight vision.
Description : Pick up the correct statement from the following: (A) If the image of the object does not fall on the plane of the cross-lines, parallax exists (B) Parallax has nothing to do with the eyepiece (C) The eyepiece is adjusted for clear vision of the cross hairs (D) All the above
Last Answer : (D) All the above
Description : Which among the following lens is used to correct Presbyopia? (1) Concave (2) Convex (3) Cylindrical (4) Bifocal
Last Answer : (4) Bifocal Explanation: Presbyopia is a condition associated with aging of the eye those results in progressively worsening ability to focus clearly on close objects. By far the most common treatment 4 for presbyopia is bifocal or pro gressive lens eyeglasses.
Description : Which one of the following lenses should be used to correct the defect of astigmatism? (1) Cylindrical lens (2) Concave lens (3) Convex lens (4) Bifocal lens
Last Answer : (1) Cylindrical lens Explanation: Astigmatism is an optical defect in which vision is blurred due to the inability of the optics of the eye to focus a point object into a sharp focused image ... lens, and cannot be corrected by standard spectacle lenses, but can be corrected by contact lenses.
Description : Which is the lens used to correct long sight?
Last Answer : Convex lens
Description : Which is the lens used to correct Astig- matism?
Last Answer : Cylindrical lens
Description : Give reason: A concave lens is used to correct myopia.
Last Answer : In a myopic eye light falls too short from the retina. A concave lens forces light to fall on the retina. Hence concave lens is used to correct myopia.
Description : Parts A, B, C and D of the human eye are shown in the diagram. Select the option which gives correct identification along with its functions characteristics. (a) C-Aqueous chamber-Reflects the light which does not ... , i.e., rods and cones. (d) B - Blind spot-Has only a few rods and cones.
Last Answer : (c) A - Retina - Contains photoreceptors, i.e., rods and cones.
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 : Pick up the correct statement from the following: (A) The power of a lens is the reciprocal of its focal length (B) The unit of power of the lens is Diopter (C) The power of two or more thin lenses in contact is the power of the combination of the lenses (D) All the above
Description : Pick up the correct statement from the following: (A) Spherical aberration may be reduced by diminishing the aperture (B) Spherical aberration may be minimised by replacing the single lens by a ... telescope objectives, a combination of convex lens and concave lens is used (D) All the above
Description : Pick up the correct statement from the following: (A) A refracting telescope consists optically of two lenses (B) The principal axes of both the lenses coincide the optical axis of the telescope (C) The lens nearer the object to be viewed is convex and is called objective (D) All the above
Description : Pick up the correct statement from the following: (A) The diaphragm is placed between eyepiece and the objective but nearer to the former (B) The diaphragm is placed between the eyepiece and objective ... outer component of the objective is a double-convex lens of crown glass (D) All the above
Description : Zoningis usedwith adielectric antenna inorderto a. reduce the bulk of the lense b. increase the bandwidth of the lens c. increase pin-point focusing d. correct the curvature of the wavefront from a horn that is too short
Last Answer : a. reduce the bulk of the lense
Description : Which one of the following lenses should be used to correct the defect of astigmatism ? (1) Cylindrical lens (2) Concave lens (3) Convex lens (4) Bifocal lens