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Ординатура / Офтальмология / Английские материалы / Illustrated Tutorials in Ophthalmology Kanski, Bolton 2001

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Possible subsequent course of CNV

Haemorrhagic sensory and Subretinal (disciform) scarring RPE detachment

Massive subretinal exudation Exudative retinal detachment

Potential indications for laser treatment of CNV

Classic extrafoveal CNV on FA

Occult extrafoveal CNV on ICG

Pre-treatment FA of classic CNV

Technique of laser photocoagulation of CNV

Perimeter is treated with overlapping 200 m (0.2-0.5 sec) burns

Entire area is covered with high energy burns

 

 

 

Lack of leakage following successful treatment

Late staining around

margin is normal

 

 

 

 

 

Results of laser photocoagulation of CNV

Initial risk of severe visual loss reduced by over 50%

Frequent subsequent recurrence with subfoveal involvement

Recurrence of CNV several months after initially successful treatment

OTHER ACQUIRED MACULOPATHIES

1.Central serous retinopathy

2.Idiopathic macular hole

3.Idiopathic premacular fibrosis

Cellophane maculopathy

Macular pucker

4.Cystoid macular oedema

5.Myopic maculopathy

6.Choroidal folds

7.Angioid streaks

Central serous retinopathy ( CSR )

Self-limiting disease of young or middle-aged men

Usually unilateral

Localized, shallow detachment of sensory retina at posterior pole

Often outlined by glistening reflex

FA of central serous retinopathy (1)

Smoke-stack appearance

 

 

 

Early hyperfluorescent spot

Later dye passage into

Subsequent lateral spread

 

subretinal space and

until entire area filled

 

vertical ascend

 

 

 

 

 

FA of central serous retinopathy (2)

Ink-blot appearance - less common

Early hyperfluorescent spot Subsequent concentric spread until entire area filled

Treatment of central serous retinopathy

Most cases are self-limiting and do not require treatment

Laser photocoagulation to RPE leak

 

 

Pre-treatment

Post-treatment

 

 

4 months should elapse before considering treatment

Treatment induces resolution and lowers recurrence rate

Does not influence final visual outcome

Staging of idiopathic macular hole

Normal fovea

Stage 1a ( impending )

Stage 1b (occult)

 

1b - ( occult hole )

Vitreous contraction with

Dehiscence

foveal detachment

of photoreceptors

Stage 4

Complete vitreous separation

Stage 3

Stage 2

Seperation of pseudooperculum from edge of hole

Seperation of cortex from retinal surface to form pseudo-operculum

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