Exam (elaborations)
ABO study guide Questions and Answers Graded A.
- Course
- Institution
ABO study guide Questions and Answers Graded A.
[Show more]
Content preview
ABO study guide Questions andAnswers Graded A
Eyelids /- /correct /Answers /✔✔ /-protect /the /eye /from /foreign /bodies /and /excessive /light /
average /blink /rate /is /7 /to /12 /times /per /minutes
lids /spread /tears /over /the /corneal /surface /to /create /a /smooth /surface
they /also /wash /away /dirt /and /debris, /protects /against /diseases
palpernral /fissure /- /correct /Answers /✔✔ /-averages /15mm /high /by /30mm /wide
extra-ocular /muscles /- /correct /Answers /✔✔ /-medial /rectus- /towards /the /nose
lateral /rectus- /away /from /the /nose
superior /rectus- /upward
inferior /rectus- /downward
superior /oblique- /top /of /the /eye /toward /the /nose
inferior /oblique-top /of /the /eye /away /from /the /nose
cornea /- /correct /Answers /✔✔ /-clear /outer /portion /of /the /eye
light /rays /pass /through /the /cornea
transparent /with /no /blood /supply /of /its /own, /tears /supply /the /nutrients /
refractive /power /of /60D /cornea /provides /2/3 /refractive /power /crystalline /lens /provides /1/3
average /horizontal /diameter /of /11.7mm
vertical /diameter /of /10.6 /mm
Iris /- /correct /Answers /✔✔ /-the /colored /part /of /the /eye
,controls /the /light /inside /the /eye
color /come /from /melanin
can /allow /more /light /when /its /dim
/VID /visible /iris /diameter /HVID /horizontal /visible /iris /diameter
pupil /- /correct /Answers /✔✔ /-center /of /the /iris
crystalline /lens
responsible /for /1/3 /of /the /eyes /refractive /power /(average /15D /to /16D)
transparent /and /has /no /blood /supply
bi-convex, /focuses /light /rays /onto /the /retina
Ciliary /Muscles /- /correct /Answers /✔✔ /-
zonular /fibers /connect /the /ciliary /muscles /to /the /crystalline /lens
muscles /change /the /shape /of /the /crystalline /lens
when
/it
/contracts
/the /zonulars /relax /it /allows /the /lens /to /thicken /increasing /the /eyes /ability /to /focus /up /close /
the /ability /of /the /eye /to /change /focus /is /called /accommodation
presbyopia /- /correct /Answers /✔✔ /-
the /loss /of /accommodation /is /called /presbyopia /(need /near /and /distance /vision)
cataracts /- /correct /Answers /✔✔ /-cloudy /opacities /in /the /crystalline /lens /
when /
a
/patient
/has
/had /
a /cataract /removed /they /can /be /aphakic /(without /a /crystalline /lens) /or /pseudophakic /(with /an /IOL
/or /intraocular /implant)
retina /- /correct /Answers /✔✔ /-captures /light /rays /and /converts /them /into /electrical /impules /
contains /125 /million /rods /that /are /responsible /for /night /vision
6 /to /7 /million /cones /responsible /for /color /and /light /vision
, the /macula /- /correct /Answers /✔✔ /-
is /found /at /the /center /of /the /retina /and /allows /us /to /see /fine /details
the /fovea /- /correct /Answers /✔✔ /-only /contains /cones /and /is /responsible /for /the /sharpest /vision
macular /degeneration /- /correct /Answers /✔✔ /-results /in /vision /loss /in /straight /ahead /gaze
optic /nerve /- /correct /Answers /✔✔ /-the /optic /nerve /carries /images /from /the /retina /to /the /brain /
the /optic /nerve /creates /a /blind /spot /
a /healthy /optic /nerve /is /necessary /for /healthy /vision
Spectacle /RX /(OD, /OS, /OU) /- /correct /Answers /✔✔ /-
OD- /oculus /dexter, /OS- /oculus /sinister, /OU- /oculus /uterque /
minus /means /myopia,plus /means /hyperpobia, /plano /indicates /no /rx
quarter /steps /are /common, /but /they /can /be /broken /down /into /eighths /
OD's /put /a /minus /cylinder /and /MD's /put /a /plus /cylinder /
the /axis /is /from /0 /to /180 /and /provides /info /on /where /the /lens /powers /are /located /
prism /is /prescribed /for /patients /whose /eyes /need /help /working /together
ft28 /- /correct /Answers /✔✔ /-flat /top /28 /bifocal
tri- /trifocal /- /correct /Answers /✔✔ /-power /is /usually /50% /of /the /add
PD /- /correct /Answers /✔✔ /-
pupilary /distance /is /noted /in /mm, /places /optical /centers, /add /powers /need /a /near /pd
lens /power /- /correct /Answers /✔✔ /-
the /power /of /a /lens /is /determined /by /adding /the /front /curve /to /the /back /curve
f1 /+ /f2 /= /F /total /
the /axis /always /coincides /with /sphere /power
cylinder /power /is /the /difference /between /the /two
transcribing /the /rx /- /correct /Answers /✔✔ /-
when
/the
/signs
/of
/the /sphere /and /the /cylinder /power /are /the /same, /add /them /together /and /keep /the /same /sign /
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller Wisdoms. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $10.49. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
81531 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now