clinical last min Flashcards
What does the +1.00 blur test assess in presbyopia management?
Assesses spherical correction to confirm maximum plus power is used, optimizing visual clarity.
How is the +1.00 blur test conducted for presbyopia?;
Add +1.00 diopters sphere to distance prescription, measure visual acuity, and observe blur levels (ideal is 3-4 lines).
How does the eye accommodate for distance vision?
Ciliary muscle relaxes, zonules stretch, lens flattens to focus at distance.
How does the eye accommodate for near vision?
Ciliary muscles contract, increasing lens power for near focus.
Describe the optical setup and function in retinoscopy.
Retinoscopy uses a light source and a condensing lens to direct a less divergent beam of light through a 45° angled semi-solid mirror into the patient’s eye. It features an aperture to adjust light intensity, aiding in the observation of the reflex produced during examination.
What role does the aperture play in retinoscopy?
Controls the amount of light entering the patient’s eye, aiding in reflex observation.
What benefits does EBP bring to optometry?
Enhances quality of care, improves patient outcomes, and ensures care is tailored to individual needs.
What are the components of Evidence-Based Practice (EBP) in optometry?
Combines the best research evidence, clinical expertise, and patient preferences to improve outcomes.
List the advantages of using an indirect ophthalmoscope.
Provides a binocular image, large field of view, and works independently of patient’s prescription.
What are the disadvantages of using an indirect ophthalmoscope?
May require pupil dilation, has a steep learning curve, and offers lower magnification than direct methods.
