Ocular lens - Study guides, Class notes & Summaries

Microbiology Lab Exam 1 Questions and Answers Already Passed What color indicates a positive urease test? Bright pink or fuchsia. What is the purpose of the citrate test? To determine if bacteria can use citrate as their sole carbon source. What color change indicates a positive citrate test? Blue. What is the purpose of serial dilution in microbiology? To reduce bacterial concentration for counting colonies. What is the role of the autoclave in a microbiology lab? To...

Bio 227 Lab Exam 1; Questions and Answers 100% Correct total magnification Answer-ocular lens x objective lens Proximal Answer-Nearer to the trunk of the body Distal Answer-Farther from the trunk of the body Anterior Answer-front of the body Posterior Answer-back of the body Lateral Answer-away from the midline

Cytology the study of cells Robert Hooke - observed cork could float - discovered a honeycomb-like structure in a cork slice using a primitive compound microscope - only saw cell walls as this was dead tissue - coined the term "cell" for these individual compartments he saw Two types of microscopes: 1. Light Microscope 2. Electron Microscope Light Microscope - light is focused on specimen by a glass condenser lens - the image is magnified by an objective lens and an ocular lens - proj...

Ocular Fundus Done with room darkened, "Look at my shoulder not the light.", Elicit Red Reflex 8-10" away with lens at Zero, Come in really close with hand on pts forehead, Close in with lens in the black (+) & focus on the optic disc at the nasal side of the retina, Change lens to Red (-) to view posterior structures, follow vessels centrally. Optic Disc On NASAL Side of retina, creamy yellow orange in color, round or oval shape, distinct sharply demarcated margins, Cup-disc ratio: ...

What is the lower limit of resolution with the light microscope? Correct Answer-.2µm Define Parfocal: Correct Answer-A slide in focus will still be in focus to nearly in focus on a different objective. The magnification of the oil immersion objective is: Correct Answer-100x The total magnification of the oil immersion is: Correct Answer-1000x, Product of the magnification of the ocular (10x) and the objective lens (100x). Resolving power: Correct Answer-Ability of a microscope to di...

ANP-650 Midterm Study 1.A client is diagnosed with strabismus. Which of the following will the client most likely experience with this disorder? 1. Nystagmus 2. Diplopia 3. Aphakic vision 4. Ptosis - ANS: 2 Diplopia, or double vision, is the primary symptom of strabismus. Nystagmus is a disorder that causes involuntarily rhythmic movements in the eye. Aphakic vision occurs when the lens of the eye is removed. Ptosis is drooping of the eyelid. 2.A client is experiencing a gradual blurr...

California Law Exam Optometry | 2024/2025 | Questions and Verified Answers| 100% Correct| A Grade QUESTION The state board must be notified within _____ of a licensee's convicted crime Answer: 48 hours QUESTION true/false: any person unable to practice because of impairment due to mental or physical illness affecting competency, the licensing agency may order appropriate exams, revoke or suspend license, place on probation, or apply other restrictions. Answer: ...

Microbiology Lab Practical 1 (Pearson Education Edition) Exam Questions and Answers 100% Pass What bacterial shape is observed? - Bacillus What bacterial shape is observed? - Coccus What bacterial shape is observed? - Spiral/spirochete How does increase in magnification affect field of vision? - It makes it smaller How does increased magnification affect depth of field? - Depth of field becomes larger Why is it desirable that microscope objectives be parfocal? - So each objective does ...

NCLE Basic Exam Study Guide Rated A+ 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

Know the lower limit of resolution for the light microscope Correct Answer-0.2 um Total magnification vs magnification of the oil immersion lens Correct Answer-Total magnification: product of the magnification of the ocular (10x) and the objective lens Oil immersion lens Define Resolving power Correct Answer-the ability of a microscope to differentiate two closelyk spaced objects as being distinct from one another Know how resolving power relates to magnification Correct Answer-Resolvi...