منابع مشابه
Intraocular fluid-air exchange reduces retinal ganglion cell activity.
AIM To demonstrate the influence of intraocular fluid-air exchange on retinal ganglion cell activity. METHODS In two cats lensectomy and vitrectomy were performed in a two-step approach 2 weeks prior to recording experiments. To measure retinal activity, up to two fiber microelectrodes were inserted via a scleral port. Precise micromanipulator positioning of the electrodes' tips onto the inne...
متن کاملVenous air embolism during air/fluid exchange: a potentially fatal complication.
Intraoperative venous air embolism (VAE) has been described in a number of surgical specialties. It occurs if air is drawn into open veins when the operative field is above the level of the heart, a situation traditionally associated with neurosurgical procedures performed with the patient in the sitting position. Venous air embolism can also occur when air is forced into the venous system unde...
متن کاملRefractive lens exchange with an array multifocal intraocular lens.
PURPOSE To prospectively evaluate safety, efficacy, predictability, stability, complications, and patient satisfaction after refractive lens exchange (clear lens extraction) followed by posterior chamber implantation of a multifocal intraocular lens (IOL). METHODS Fifty eyes of 25 patients (mean age 51 years, range 44 to 62 years) with preoperative spherical equivalent refraction between -15....
متن کاملCapillary fluid exchange.
To understand the functional aspects of the microcirculation, the student must understand that the circulation in our bodies is a pressurized system (see Fig. 1A). When the blood leaves the heart to enter the aorta, it produces an average vascular pressure in the large arteries of ,100 mmHg. However, as the blood flows through the smallest arteries (arterioles), its pressure decreases to 30–40 ...
متن کاملPost-traumatic artificial lens implants
Stintzy (i966), in a review of 450 cases of eye injuries, mostly unilateral, in children, reported the development of cataract in 26 per cent. Traumatic cataract, if not complicated by severe damage to other structures of the eye and if successfully treated by surgery, presents the surgeon and the child with the problems of unilateral aphakia. The optical correction of the latter is the crux of...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Ophthalmology
سال: 2020
ISSN: 0161-6420
DOI: 10.1016/j.ophtha.2020.02.011