NCLE Exam Package Deal

optic zone - Answer the central portion of a contact lens which contains the refractive power and generally corresponds to the central corneal cap posterior apecal radius - Answer this term is generally used in reference to spin-cast soft lenses. the curvature of the posterior surface of the lens...

A Correct Statement regarding epithelial cells is that they: a)Comprise the posterior layer of the cornea b)Are unable to regenerate c)Comprise the thickest layer of the cornea d) Have the ability to reproduce - Answer d) have the ability to reproduce Which of the following prescriptions in...

Diffused Illumination - Answer -Uses widest slit, longest aperture -Light source positioned at an angle of 40º-50º -Used to view overall areas, to observe the ocular adnexa, cornea, sclera, lids, conjunctiva, lens surface, and CL fitting characteristics Direct Illumination - Answer -Most impo...

The answer is D. The posterior optical zone will directly affect the lens to cornea relationship of a rigid gas permeable lens. If the posterior optical zone is steepened, it will increase the sagittal depth. If it is flattened, it will decrease the sagittal depth. Changing the power, which is ac...

base curve - Answer refers to the radius of curvature of the central posterior surface of the lens. It may be expressed in diopters of surface power (D) or in millimeters (mm) of radius or curvature. optical zone - Answer the chord diameter over which the base curve extends on the posterior surfa...

What is the Secondary/intermediate curve? - Answer The curve on the posterior side of the contact lense between the base curve and peripheral curve. Usually 0.7mm to 1.6mm flatter than the base curve radius. The width is affected by the OZ diameter and peripheral width. What is the peripheral cur...

Steep Fluorescein Pattern - Answer Bright green pooling center, very faint green pooling on diameter of lens Flat Fluorescein Pattern - Answer Bright green pooling on diameter of lens, very faint green in center Against-the-rule Astigmatism Pattern - Answer Bright green pooling horizontally, f...

Which of the following medications may affect successful contact lens wear? A. Antacids B. Antihistamines C. Aspirin D. Laxatives - Answer B. Antihistimines Which term refers to a sensitivity to light? A. Prebyopia B. Photophobia C. Pannus D. Ptosis - Answer B. Photophobia The followi...

What is the thickest layer of the cornea? - Answer stroma Which corneal layer controls the fluid content of the cornea? - Answer endothelium What is cornea edema? - Answer excess fluid in the stroma that can swell it and lead to loss of visual acuity What kind of contact lenses must be stab...

Selection of Toric lens depends on: - Answer 1) ocular health and exam findings 2) agreement with patient on which best fits their needs frequency of replacement depends on tendency for coatings, wearing schedule, etc Other things to keep in mind for toric follow ups and ordering - Answer Ord...

toric - Answer synonymous with astigmatism multifocal - Answer synonymous with presbyopia/c hybrid CL - Answer combination with GP lens center w/ soft lens outer skirt hydrogel contact lens - Answer most frequently prescribed material contain varying amounts of water comfort is immediate ...

Adnexa Oculi - Answer are the accessory structure that are considered part of the eye, but not part of the eyeball itself. these structures include: eyelids, eyelashes, tears, lacrimal apparatus, accessory glands and extrinsic muscles and orbit. everything outside of the eyeball. Meibomian Glands...

Pre-ocular tear film - Answer Transient keratometric mire distortion Tear Film - Answer The main supply of oxygen to the corneal epithelium is derived from the Which auxiliary trial lens will extend the keratometer range to approximately 30.00D - Answer -1.00 A smooth optical surface and Me...

D. all of the above - Answer The eyelids play an important role in the fitting and wear of contact lenses for which of the following reasons? A. they effect the wettability of the lens serface B. they effect the positioning of the lens C. they are sensitive and generally cause most of the discomf...