Ocular Effects of Drugs

Question 1

how can drugs reach th e eye

Answer 1

systemic blood supply of retina and uvea
can be deposited in the lens cornea and retina

Question 2

why influences adverse reactions

Answer 2

cumulative effects of medication
non compliance regarding dose
hypersensitivity
personal idiosyncracy
drug interaction
age, pigmentation, method of administration, generic factors

Question 3

how woukd you detect this in practoce

Answer 3

pinhole for acuity
visual fields Amsler Central Peripher
iop
colour perception with d15 cos isihara not sensitive enough and assess each eye respectively
slit lamp of anterior segment
macula and fundus periphery and may do pupil dilation

Question 4

main drug groups

Answer 4

self administered
prescribed by gp
preps from opthlmollgists
peeps instilled by optometrists in practice

Question 5

anticholinergic activity - Central Nervous System drugs

Answer 5

antidepressants
sedatives
hypnotics
tranquilizers
hard drugs

Question 6

aNS drugs have antimuscarinic activity

Answer 6

derived from atropine and include cylcloplsgis and myddiasis
alimentary preps for Gai problems Hysocine Propatheline
travel dicknsss muscarinic antagonists
drugs to manage parkinsons disease

Question 7

steroids

Answer 7

PSC cataract
haemorrhages
myopathy
oedema
raised iop
papilloedema