a flowering plant whose stem above ground does not become woody. 2. such a plant when valued for its medicinal properties, flavor, scent, or the like. 3. Often, the herb. Slang. marijuana.
Retinal detachment is a disorder of the eye in which the retina peels away from its underlying layer of support tissue.Initial detachment may be localized or broad, but without rapid treatment the entire retina may detach, leading to vision loss and blindness. It is almost always classified as a medical emergency.Permanent damage may occur if the detachment is not repaired within 24â72 hours.nitial detachment may be localized or broad, but without rapid treatment the entire retina may detach, leading to vision loss and blindness. It is almost always classified as a medical emergency. Permanent damage may occur if the detachment is not repaired within 24â72 hours.
Fluid is prevented from accumulating under the neurosensory retina, thereby preventing the retina from detaching. For laser retinopexy to be successful, the laser burns must be applied as soon as possible around the tear before retinal detachment develops. TYPES OF RETINAL DETACHMENT SURGERY It is not always possible to detect a retinal tear early enough before the retina detaches. When you are diagnosed with retinal detachment, you will be advised on one of the two main types of retinal detachment surgery procedures (which can be combined together if required): vitrectomy and scleral buckling surgery.