Spectacle magnification - Study guides, Class notes & Summaries

ABO Advanced Formulas Resolving Prism= - answerVertical = (prism)(sin angle) Horizontal = (prism) (cos angle) Resultant Prism= - answerThe square root of (Vertical prism^2) + (Horizontal prism^2) tan a=V/H Shape Factor= - answer1/1-(T/NxF) T=center thickness in m N= index of refraction of lens material F= front base curve Power Factor= - answer1/1-(HxD) H= vertex distance plus 3 mm in m D= Dioptric power Spectacle Magnification= - answershape factor x power factor 1/ 1-(T/NxF) x 1/1...

Certified Paraoptometric (CPO) - Unit III | clinical principles and procedures Visual Acuity (VA) - The meausure of the finest detail the eye can detect. Typically described as a Snellen fraction. Snellen Letters - Letters most often used to measure acuity at distance. Snellen Fraction (20/20) - = Testing Distance / Distance at which letter is standardized to be read Snellen numerator - Testing distance (usually 20 feet) Snellen denominator - Distance at which the letter is supposed ...

Visual Acuity (VA) The meausure of the finest detail the eye can detect. Typically described as a Snellen fraction. Snellen Letters Letters most often used to measure acuity at distance. Snellen Fraction (20/20) = Testing Distance / Distance at which letter is standardized to be read Snellen numerator Testing distance (usually 20 feet) Snellen denominator Distance at which the letter is supposed to be read. Cover/Uncover/Alternative-Cover Testing Examines...

annular bifocal contact - A lens with distance portion ground into the center of the lens and the near portion ground into the periphery aphakic lenses - lenses designed for post-cataract fitting apical zone of cornea - the central portion of the cornea with a constant radius of curvature. Also called the corneal cap. artificial tears - medications, many of them over the counter, to treat dry eyes aspheric lens - A non-spherical lens, in which the radii of curvature increase towards the peri...

Which of the following medications may affect successful contact lens wear? a. antacids b. antihistamines c. aspirin d. laxatives - antihistamines Which term refers to a sensitivity to light A.presbyopia B.Photophobia C.Pannus D. Ptosis - Photophobia The following is an example of what type of astigmatism? K's 42.50 @180 /40.50 @90 A. with the rule B. Lenticular astigmatism C.Against the rule D. Irregular astigmatism - Against the rule astigmatism The cornea receives nutrients from 1 Aq...

NCLE EXAM, PRACTICE EXAM,LATEST UPDATE |VERIFIED ACTUAL EXAM QUESTIONS AND CORRECT ANSWERS ALL GRADED A+|SUCCESS GUARANTEED The advantages aphakia have over spectacle lenses - ANSWER-Less peripheral aberration Less magnification Increase visual field not having a lens inside your eye - ANSWER-Aphakia Which of the following can aphakia cause, myopia or hypermetropia? - ANSWER-Hypermetropia Causes of aphakia - ANSWER-*Congenital absence of lens *Surgical Aphakia *Ab...

cpss ophthalmology | with complete solution | GRADED A+ OD - right eye OS - left eye OU - both eyes QD - once a day BID - twice a day TID - three times a day QID - four times a day QHS - use at night QAM - use in the morning PRN - as needed CC - chief complaint GTT - drops UNG - ointment PO - by mouth NPO - nothing by mouth HPI - history of present illness STAT - urgent IOT/IOP - intraocular tension/ intraocular pressure RX - prescription what percentage ...

Because children have a high degree of focusing ability, your doctor might want to temporarily relax the eyes muscles. This procedure is known as what? - Cycloplegic refraction What lens style is also referred to as a "no line bifocal"? - Varifocal or Progressive For hyperopes under the age of 40, what is a common symptom after long periods of reading? - Blurred vision at distance Can scratches on spectacle lenses be polished out? - No: furthering polishing would change the index ...

CPSS Test Questions and Answers All Correct Visual Acuity - Answer-the numerical value associated with the smallest objects the patient can see on specific eye charts at a specific distance. -cornerstone of the eye exam External Exam - Answer-Consists of 3 segments: -Confrontation Visual Field -ExtraOcular Motility -Pupil Evaluation Confrontation Visual Field (CVF) - Answer-Obtains a gross measurement of the patient's peripheral vision. It is useful in the detection of damage due t...

CPSS Exam Questions with Correct Answers Which of the following describes OSHA's (Occupational Safety and Health Administration's) primary goal - Answer-protect employees in the workplace HIPAA is the acronym for which of the following? - Answer-Health insurance portability and accountability act The Privacy Rule is the first national regulation on medical privacy and health information management. - Answer-the first national regulation on medical privacy and health information manage...