WILL & DENI MCINTYRE / SCIENCE PHOTO LIBRARY WILL & DENI MCINTYRE / SCIENCE PHOTO LIBRARY
Laser eye surgery. Here, the procedure is being conducted on a female patient, seen in side view. The head of the patient is secured to prevent movement; the laser is aimed using a retinal camera, and its beam is delivered in a series of pulses. Lasers have a variety of uses in ophthalmic surgery, including photo- cauterisation of blood vessels in retinopathy, and in the treatment of detached retinas. Such treatments do not usually require anaesthesia, and may be performed on an out-patient basis.
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