Q2: Which of the following answer choices represents a patient with simple hyperopic astigmatism OU?

Q3: Your patient holds a +25.00 D magnifier lens one focal length from the printed material. The lens diameter is 10 cm and the patient is 5 cm from the lens. What is the linear field visible through the magnifier?

Q4: A patient requires 2.6% magnification in the left eye to eliminate aniseikonia. Which of the following combination of spectacle lens data will produce approximately 2.6% magnification?

Q5: A single-surface reduced eye has a corneal radius of 7.8 mm, a refractive index of 1.33 and a 4 mm wide circular aperture, located 3.6 mm from the cornea. What is true for the eye’s entrance pupil?

Q6: What is the accommodate demand for an uncorrected 1.25 D hyperope to view a target at 57 cm?

Q7: When performing lensometry, the cylinder lines are focused at +3.00 while the sphere lines are focused at +1.00. The axis indicator reads 045 degrees. What is the prescription in minus cylinder form?

Q8: What is the accommodate demand for myopic patient who wears -8.00 DS spectacle lenses at a vertex distance of 14 mm while viewing a target at 25 cm?

Q9: The patient’s refraction is -3.50 -0.50 x 180. The K-readings are 43.00 / 45.00 @ 090. When fitting a contact lens, the best choice is a _____.

Q10: A patient’s prescription is +2.00 -0.50 x 160. What is the largest axis error a spectacle lens could have while still being within ANSI tolerance?

Q11: Which of the following parameters in a rigid contact lens can be measured with a Lens Clock?

Q12: Which of the following spectacle lens materials has the highest Constringence?

Q13: Which of the following do hidden engravings on modern Progressive Addition Lenses directly show?

Q14: A simple schematic eye consists of a spherical cornea of radius 5.50 mm and an axial length of 24 mm. The index of the eye is 1.33. At what distance from the eye will the object be seen clearly?

Q15: If one holds a lens 50 cm from a light source and finds an image of the source at a distance of 16.6 cm behind the lens, what is the power of the lens?

Q16: The patient’s visual acuity in Snellen notation is 20/200. What are the corresponding decimal visual acuity and the minimum angle of resolution?

Q17: A patient’s prescription is OD: Plano, OS: -1.50 -2.50 x 180, +2.00 Add OU. In primary gaze the patient is orthophoric at distance and near. If she reads 10 mm below the distance optical center through the bifocal segment, which treatment would be most appropriate?

Q18: When changing a patient’s hydrogel contact lens material from a high into a low water content material, the __________

Q19: What size should a 20/200 optotype be for accurate measurement of visual acuity at 8 feet?

Q20: Your patient looks at a computer monitor while his pupil size decreases from 6 mm to 2 mm. The retinal illuminance will …..

Q21: A back surface toric RGP contact lens is found to have 2.00 D of toricity on the back surface as measured with a radiuscope. With a lensometer one will find ….. cylinder power, and on the eye the lens will induce a cylinder power of …..

Q22: The Holden-Mertz criteria for minimum acceptable oxygen transmissibility (Dk/t) for a daily wear contact lens is …., and for an extended wear contact lens it is …..

Q23: Assuming a working distance of 40 cm, which of the following is the most appropriate add for a 50-year old emmetrope?

Q24: A +30.00 D stand magnifier 2.5 cm from text is 15 cm from the patient’s eye. The total magnification compared to a 25 cm viewing distance is ….., and the trade magnification stated by the manufacturer is …..

Q25: A prescription is to be placed into a wrap-around frame with a wrap angle of 30 degrees. Each lens has a power of +4.00 D. This will induce …..