Doctor insights on:
What Are The Different Types Of Refractive Errors
Eye cancer: The list is very long-- it includes, but is not limited to-- retinoblastoma, melanoma, basal cell carcinoma, squamous cell carcinoma, rhabdomyosarcoma. Some eye cancer has a relatively good prognosis, especially if picked up early. Some eye cancer can be fatal. ...Read moreSee 1 more doctor answer
Microcephaly = small: head, or a head circumference for age & gender < 5th %ile. Head growth reflects brain growth. Any genetic or other medical condition that disrupts fetal brain development can cause congenital microcephaly. Any genetic or other medical condition that damages an infant or child's brain or causes degeneration & slows its velocity of growth can cause acquired microcephaly. See below. ...Read more
LASIK, PRK: Lasik and prk are two different approaches to changing the focusing power of the eye to improve vision. There are several older approaches which are used very little anymore. Of course vision can be improved (meaning needing less eyeglass power) after cataract surgery as well. ...Read more
Various: These relate to hemoglobin, the molecule that helps transport oxygen, and is made of 4 subunits. Adults have 2alpha & 2beta, while kids have 2alpha & 2gamma. Other minor forms also exist. Any disorder that alters these subunits can lead to hemoglobinopathy, some of which have no significance (d and e) and others that may (thalassemia & sickle cell). ...Read more
Many types: The most common is idiopathic (exact cause unknown, but it runs in families, so it is genetic). It can be caused by degeneration (aging), especially in the low back. It can be caused by neurological problems like cerebral palsy and spinal cord injury (in children). Congenital scoliosis is from abnormalities of spine formation in the womb. It can occur with some forms of spine trauma besides cord. ...Read moreSee 1 more doctor answer
Open, closed, stable: Orthopaedic surgeons use a myriad of terms to describe fractures depending in large part on which bones are invovlved. In general, fractures are open (via break in skin) or closed, stable or unstable, midshaft or juxta-articular, displaced or non-displaced, and comminuted (many parts) or non-comminuted, angulated or non-angulated. Eg: minimally displaced, comminuted midshaft both bone forearm fx. ...Read moreSee 1 more doctor answer
Genetic/Aquired: There are basically three major kinds of Hyperlipidemias 1Familial or Genetic 2Aquired 3Idiopatic They can also be be classified according to which lipid is elevated 1Hypercholesreemia 2Hypertriglyceridemia 3Combined Familial type is classifies Type1,2,3,4,5 Aquired Causes are Diabetese,caused by drugs like diuretics ,beta blockers,Hypothyroidism,Metabolic Disorder/Nephrosis. Too vast to cover400L ...Read more
Hepatitis 'types': Hepatitis means inflammation of the liver. This can be due to viruses (hepatitis a, b, c, d or e; epstein-barr, CMV etc) or fat or alcohol or iron or copper deposition or other 'storage diseases' or medications or autoimmune diseases or genetic causes or combinations etc. So - a thorough workup is usually indicated. If left untreated hepatitis from any cause has the potential for complications. ...Read moreSee 1 more doctor answer
Diabetes: There are many types of diabetes. First of all, i imagine that you really mean diabetes mellitus but there is also a condition called diabetes insipidus. The main forms of diabetes are type i and type ii. There are many others with the end result that the blood sugars can reach higher than normal levels. ...Read moreSee 1 more doctor answer
Wet and Dry: There are two general forms: dry about 85% which is the slow breakdown of macular pigment and vision decrease. The wet form has a more rapid progression with formation of new blood vessels, severe vision loss and occasionally intraocular hemorrhage. There are new medications which can address this. ...Read moreSee 2 more doctor answers
Several: The major ones are confusion of red and green/ blue and yellow/ and an off green and off red. Most common are subtle forms of these which allow major color differences to be seen. We test these with color confusion plates that are subtle and strong, to make the distinction. Color vision is also lost with advanced diseases like diabetes and retinitis pigmentosa. ...Read more
Many types: Typically the types are divided into "causes" or the "drain status" thus primary glaucoma vs. Secondary glaucoma (caused by something that is affecting the drain of the eye) or open angle vs. Closed angle glaucoma basically glaucoma can happen at various pressures that is damaging to the individual patient, so there is no pressure cutoff. ...Read moreSee 1 more doctor answer
I do not remember: Amnesia is a lose of memory. For some events such as trauma, infection, or emotional crisis there can be antegrade amnesia where memory before the event is lost. There can be retrograde amnesia where memory after the event is lost. Or both can occur. Agnosias may occur where just very select things may not be able to be remembered. Famous of these is prosopagnosia - unable to remember faces. ...Read more
Yorkshire : Research study identified 6 kinds of obesity clusters. The cluster of Obesity identify groups of people with Obesity arguing that of the clusters may not suffer from obesity related medical and emotional complications. While some clusters have more symptoms . This classifications are not universally accepted ...Read more
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