What is astigmatism - Study guides, Class notes & Summaries

CCHI Exam Questions and Answers Latest Updated 2024/2025 (100% Correct) What is the function of the gonads? - ANSWER-Produce testosterone (testes and ovaries), considered endocrine glands Function of prostate gland? - ANSWER-secretes fluid that transports sperm how does urine travel? - ANSWER-produced in kidneys, through ureters into bladder, bladder stores it, urine released through urethra (tube) what is the perineum? - ANSWER-area between vagina/scrotum and anus Cystoscopy - ANSWER-visu...

Nuclear Medicine Instrumentation Exam Questions with 100% Correct Answers The amount of light generated by a sodium iodide crystal is directly related to the: A. photon energy absorbed in the crystal B. Diameter of the crystal C. Thickness of the crystal D. Age of the crystal - answerA. photon energy absorbed in the crystal A NaI (Tl) scintillation detector provides an output signal from the photo-multiplier tube that is proportional in amplitude to the amount of energy absorbed in the c...

ODP Spectacle Final Exam Questions and Answers All Correct When would a frontal angle be seen? - Answer-While observing the nose from the front What is one possible reason to use a material that naturally creates more power? - Answer-To create a flatter curve The conjunctiva is considered: - Answer-A mucous membrane A patient who enjoys archery often finds that the target seems difficult to see clearly. What tint added to his spectacles may help this situation? - Answer-Yellow Which...

PRAXIS 5282 LATEST UPDATE GRADED A+ Retinitis pigmentosa Inherited disease Gradual decline in vision Peripheral and night vision decline first (rods) Central vision and color decline (cones) Usher Loose hearing and vision. Involves RP Usually appears during adolescence or early adulthood Strabismus Misalignment of the eyes eyes Macular degeneration Deterioration of macula. Loss if central vision Stargardt. Juvenile macular degeneration Glaucoma Damamge to optic nerve because of high pressur...

ABO advance study guide test questions and answers verified 100% When taking seg height measurements, which of the following situations could result in a parallax error? - Patient sitting/ dispenser standing erect Which of the following is not significant in identifying the problem of vertical imbalance? - Patient's age Which of the following elements is NOT critical when determining vertical imbalance? - Lens power in the 180 degree meridian A prism will displace the object be...

ABEKA BIOLOGY: GOD'S LIVING CREATION TEST 4 100% PASS what disease of the spinal cord is caused by a virus that destroys motor neurons? poliomyelitis what are the four front teeth on each jaw that cut food? incisors what type of nutrient are starches and sugars? carbohydrates which of the following (ileum, jejunum, duodenum, rectum) is NOT a division of the small intestine? rectum what are neurons that relay messages between other neurons? interneurons what is the long fibe...

What are the disadvantages of Soft Lenses? - ANSWER-Doesn't correct irregular astigmatism, favors deposit formation Which test measures the quantity of tears? - ANSWER-The Schirmer test. What are good results for the Schirmer test? - ANSWER-15 mm in 5 minutes. What are dry eye results for the Schirmer test? - ANSWER-5-10 mm in 5 minutes. Neovascularization is mainly due to what? - ANSWER-Hypoxia, corneal edema, tight contact lens fit The Radii and Power of an average cornea - ANS...

TVI Praxis (5282) Questions and Answers Rated A strabismus abnormal deviation of the eye (cross-eyed) amblyopia lazy eye If Billy is walking around with his chin to his chest, he has vision impairment in which field? Lower National Federation of the Blind The largest American blindness-related organization Braille Authority of North America Responsible for overseeing UEB Retinopathy of Prematurity (ROP) Is not congenital enucleation of the eye removal of the entire eyeball emmetropia norm...

To widen the distance between the pads of a frame or mounting, bent the pad arms: - Outward/Angle the temples upward from the end pieces. A reverse slab-off is molded with base _____ prism in the near portion of the lens. - Down Multifocal height is usually determined by measuring from the: - Lower edge of the lens. If the pad arms are lengthened, this adjustment will: - Push the front out more. A semi-rimless mounting consists of: - A center piece with lens bars connecting the end p...

Which of the following is most related to the conjunctiva? a. Is the mucous membrane that forms the inner lining of the eyelids b. Is the vascular layer of the eyeball; it supplies the retina with blood c. Is composed of circular and radial muscles d. Forms the cornea, the window of the eye ANS: A 80. On its way to the retina light does not pass through this structure. a. Pupil b. Vitreous humor c. Choroid d. Cornea ANS: C 81. Which of the following is not true of the lens? a. Chang...