Current Research in BV Flashcards
What are some widely researched topics on BV?
- Amblyopia
- Convergence insufficiency
- RX error development : myopia control
- Prescibing
what sub topics are researched in amblyopia?
Treatment
Compliance
Quality of life
what sub topics are being researched in convergence insufficiency?
Diagnosis
Treatment
what sub topics are being researched in ref error development?
Natural development (so prescribing during emmetropisation phase)
Myopia control
what sub topics are being researched in prescribing?
Low hyperopia
Myopia
Bifocals
Is there current research on the effectivness of ambyopia treatement?
The cochraine review states that there is currently not enough evidence to say whether its better than current occlusion therapy
What is the value of cochrane reviews?
They will show the best quaility evidence that has been carefully collected and monitored for us to use in practice
what will Cochrane do if someone wants to research their own field of study?
they will agree to the research but will not let the people in this field do so due to risk of bias
What is the evidence for convergence insufficeny?
- Scheiman et al (2008). They found there was no diffrence between base in prism and placebo reading glasses in children.- But they did in adults
- Schieman et al (2008) also found there was no statistical diffrence between pen to nose exercises and office-base placebo therapy.
BUT another Cochrane review found there was a difference *however this may be due to compliance * - Another review, found pencil push up was hardly better then placebo
why must we be critical of papers?
as in some papers- eg scheiman et al- he did some of the research himself so he was writing about his own field, we want to avoid bias!
what are recent studies saying about myopia control?
Myopia progression is similar whether children wear their full correction or not.
Progression is similar with single vision versus bifocal lenses, but slightly better with progressive lenses.
Myopia progression is slightly reduced when children use muscarinic drops (1% nightly) and further reduced when this is combined with mf lens wear.
what is a limitation of anti-muscarinics?
although 1% has an effect on myopia control, they have optical and systemic side effects and are not easily available
what did one study say about strab and ref correction?
Suggests that refractive correction makes little difference to strabismus or to acuity in these children, but these studies were at high risk of bias.
What are the current points of refractive development and prescribing?
Correction of Hyperopia may be linked to prevent esotropia, however it can interfee with emmetropisation.
However, does hyperopia correction actually effect emmetropisation?
mixed results- One study found it did affect and one found it did not- high risk of bias and better research needs to be done
