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Photopsia is the presence of perceived flashes of light in the field of vision. It is most commonly associated with: [4] posterior vitreous detachment; migraine aura (ocular migraine / retinal migraine) migraine aura without headache; scintillating scotoma; retinal break or detachment; occipital lobe infarction (similar to occipital stroke)
During this detachment, the shrinking vitreous can stimulate the retina mechanically, [9] causing the patient to see random flashes across the visual field, sometimes referred to as "flashers", a symptom more formally referred to as photopsia. The ultimate release of the vitreous around the optic nerve head sometimes makes a large floater ...
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It received praise for brevity, being only 39 pages, and lacking the illustrations which had graced its predecessors. Like the NHS Plan 2000 with which Stevens was also associated it was supported by the great and good of the NHS, but in this case it was regulators - Monitor, the Care Quality Commission and the like, rather than the Royal Colleges and Trades Unions of the earlier plan.
Vitreous hemorrhage is the extravasation, or leakage, of blood into the areas in and around the vitreous humor of the eye. [1] The vitreous humor is the clear gel that fills the space between the lens and the retina of the eye.
The multiple flashes result in a significant decrease in guide number, since each is only a part of the total flash power, but it is all that illuminates any particular part of the sensor. In general, if s is the shutter speed, and t is the shutter traverse time, the guide number reduces by √ s / t .
2gether NHS Foundation Trust; Accelerated Access Review; Bedfordshire Hospitals NHS Foundation Trust; Birmingham Community Healthcare NHS Foundation Trust; Bristol Community Health; Cambridge University Health Partners; Children's Acute Transport Service; Clinical Senate; Criticism of the National Health Service (England) David Haslam (GP)
The NHS Long Term Plan, also known as the NHS 10-Year Plan is a document published by NHS England on 7 January 2019, which sets out its priorities for healthcare over the next 10 years and shows how the NHS funding settlement will be used. It was published by NHS England chief executive Simon Stevens and Prime Minister Theresa May. [1]