Contact Lab Exam
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| show | ophthalmometer
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| What is the keratometer mainly used for? | show 🗑
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| What are some other uses for the keratometer? | show 🗑
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| What is the index of refraction used to calibrate the keratomenter? | show 🗑
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| What are the keratometer power drums calibrated in? | show 🗑
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| What is an attachment to the keratometer used to measure the corneal curvature values across multiple points on the cornea? | show 🗑
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| What is the normal keratometer diopter range? | show 🗑
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| What is the extended keratometer diopter range? | show 🗑
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| show | -1.00
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| show | +1.25
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| show | Dry eyes, but blinking should clear the mires
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| What are irregular mire distortions that don't clear up after blinking caused by? | show 🗑
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| What is with the rule astigmatism? | show 🗑
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| show | Cornea has the flattest meridian vertically; 60-120 degrees
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| What is oblique astigmatism? | show 🗑
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| show | The two principle meridians are not 90 degrees from one another.
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| What is the average blink rate? | show 🗑
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| What is the average BUT? | show 🗑
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| show | 10-10.5 mm
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| show | 11.5 mm
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| show | 4.5 -5 mm
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| What are some respiratory disorders that could effect contact wear? | show 🗑
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| show | enlarged blood vessels; photophobia; itching; lacrimation; burning; ocular sensitivity; debris in the tears
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| show | single use
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| What problems will patients with diabetes have with contact wear? | show 🗑
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| Patients with diabetes are good candidates for single use depending on the ________? | show 🗑
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| What type of endocrine (hormonal) changes effect contact wear and why? | show 🗑
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| show | protrusion and drying of the eyes can cause the lens to dislodge easier
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| What problems does rheumatoid arthritis cause for wearing contacts? | show 🗑
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| What type of skin diseases can effect contact wear if they are found around the eyes? | show 🗑
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| show | Acutane; Dyazide and Lasix; Lanoxin; Donnatal; Valium; Antihistamines; Decongestants
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| show | dry eyes; photophobia; fluctuation in vision; decreased corneal sensitivity; decreased blink rate; mydriases; also can effect lids and conjunctiva
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| What is another name for the slit lamp? | show 🗑
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| show | 6X or 10X
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| What type of illumination should we start with during a slit lamp exam? | show 🗑
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| How much of angle should be between the light and the microscope? | show 🗑
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| What should the height of the light be to begin with? | show 🗑
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| What should the width of the light beam be to begin with? | show 🗑
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| show | On the outer canthus
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| show | joystick
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| show | One on the slit width control knob and one on the joystick
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| show | Diffuse; Parallel Piped; Optic Section; Specular Reflection; Conical Beam; Retro; Sleratic Scatter; Tangential
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| show | Blue, Green, and White
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| show | Ivory, Pure and Natural, Neutrogena; Optical Soap
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| show | Remove jewelry; Turn on faucet using paper towel; wet hands; apply soap; keep hands at a lower angle; rub hands together vigorously, wash both sides; rinse; dry start with finger tips to wrist; turn off using a clean paper towel
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| show | with 2-4 drops of Boston cleaner; using pinky rub from center to the outer edge (not in circles) flip over, clean the other side; hold lens and rinse with saline or water; pat dry
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| show | flush 3 minutes once per week
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| What is the emergency phone number? | show 🗑
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| What is the topographer used for? | show 🗑
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| show | Flat curves
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| show | steep curves
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| show | video keratoscope and photokeratoscope
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| show | Loupe/Monocular Magnifier/Handheld Magnifier
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| show | 7x or 10x magnification; magnifies to inspect lens; can also measure diameter, PPC, and seg height; and optical zone
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| What is another name for the radiuscope? | show 🗑
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| show | Base curve
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| show | posterior peripheral curve; peripheral posterior curve
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| show | Projection magnifier
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| What is the shadowgraph used for? | show 🗑
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| What is the fluorescent tube light used for? | show 🗑
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| show | To inspect blends and junctures
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| show | Lenscometer
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| What is con-ta-check? | show 🗑
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| show | Wood's Light; invented by Robert Wood
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| show | hand held instrument used to evaluate the cornea and contact in situ; can also be used to view staining and for BUT
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| show | Dial Gauge; Thickness Gauge
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| What is the thickness gauge used for? | show 🗑
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| show | Slot gauge, V-groove
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| show | Measure the diameter of a GP lens
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| What are the other names for the Lensometer? | show 🗑
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| What is the lensometer used for? | show 🗑
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