Retina

Question 1

what are the three main types of retinal detachment?

Answer 1

traction
exudative
rhegtmatogenous

Question 2

what causes exudative detachment?

Answer 2

a breakdown of the blood retina barrier. tumours and choroidal inflammation may also cause this

Question 3

what causes traction detachment

Answer 3

contraction of fibrovascular tissue of the retina. can be due to diabetic retinopathy

Question 4

what causes rhegtmatogenous detachment

Answer 4

a retinal break, a PVD may be present and seen as a giant tear, if pvd present free fluid can spread and will be rapidly progressive. if no pvd present will progress slower early treatment is also advised

Question 5

when to refer suspected detachment

Answer 5

horseshoe tears, any pigment or blood in the vitreous, visible detachment,

Question 6

what are treatments of detachment

Answer 6

once referred
ophthalmology will:
close break
internally- PPV and tamponade
externally - buckle and cryo
then create a permanent adhesion between the rpe and retina

Question 7

what may px complain of with a macular hole

Answer 7

loss of central vision
metamorphisa
may be asymptomatic is other eye has good vision