Central retinal vein occlusionSuperficial vein: Superficial vein is a vein that is close to the surface of the body. This differs from deep veins that are far from the surface.Macular edemaLogMAR chart: A LogMAR chart comprises rows of letters and is used by ophthalmologists and vision scientists to estimate visual acuity. This chart was developed at the National Vision Research Institute of Australia in 1976, and is designed to enable a more accurate estimate of acuity as compared to other charts (e.Giacomini vein: The Giacomini vein is a communicant vein between the great saphenous vein (GSV) and the small saphenous vein (SSV). It is named after the Italian anatomist Carlo Giacomini (1840-1898).Purtscher's retinopathy: Purtscher's retinopathy is a disease where part of the eye (retina) is damaged. Usually associated with severe head injuries, it may also occur with other types of trauma, such as long bone fractures, or with several non-traumatic systemic diseases.TriamcinoloneVitreous membrane: The vitreous membrane (or hyaloid membrane or vitreous cortex) is a layer of collagen separating the vitreous humour from the rest of the eye. At least two parts have been identified anatomically.Retinal haemorrhagePylephlebitis: Pylephlebitis (also called pyelophlebitis and infective suppurative thrombosis of the portal vein) is an uncommon thrombophlebitis of the portal vein or any of its branches (ie a portal vein thrombosis) that is caused by infection. It is usually a complication of intraabdominal sepsis, most often following diverticulitis, perforated appendicitis, or peritonitis.Laser coagulation: Laser coagulation or laser photocoagulation surgery is used to treat a number of eye diseases and has become widely used in recent decades. During the procedure, a laser is used to finely cauterize ocular blood vessels to attempt to bring about various therapeutic benefits.Femoral vein: In the human body, the femoral vein is a blood vessel that accompanies the femoral artery in the femoral sheath. It begins at the adductor canal (also known as Hunter's canal) and is a continuation of the popliteal vein.Coherence theory: In physics, coherence theory is the study of optical effects arising from partially coherent light and radio sources. Partially coherent sources are sources where the coherence time or coherence length are limited by bandwidth, by thermal noise, or by other effect.Jugular venous pressurePars plana: The pars plana is part of the uvea, choroidea, one of the three layers that comprise the eye. As a part of the ciliary body, it is about 4 mm long, located near the point where the iris and sclera touch and is scalloped in appearance.Branch retinal artery occlusion: Branch retinal artery occlusion (BRAO) is a rare retinal vascular disorder in which one of the branches of central retinal artery is obstructed.Flashlight: A flashlight or torch in British English, is a portable hand-held electric light. Usually, the source of the light is a small incandescent light bulb or light-emitting diode (LED).Non-invasive intracranial pressure measurement methods: Increased intracranial pressure (ICP) is one of the major causes of secondary brain ischemia that accompanies a variety of pathological conditions, most notably, traumatic brain injury (TBI), stroke, and intracranial hemorrhages. Increased intracranial pressure can cause such complications as VIIP, death, permanent neurological problems, reversible neurological problems, seizures, stroke.Superior mesenteric vein: In anatomy, the superior mesenteric vein (SMV) is a blood vessel that drains blood from the small intestine (jejunum and ileum). At its termination behind the neck of the pancreas, the SMV combines with the splenic vein to form the hepatic portal vein.Circulus arteriosus major: Circulus arteriosus major, also called "major circulus arteriosus of iris" CIA or CIAM, is formed by anastomosis of the anterior ciliary arteries with the Long posterior ciliary arteries at the ciliary body. It supplies the iris, ciliary body and choroid.ThrombosisExternal iliac vein: The external iliac veins are large veins that connect the femoral veins to the common iliac veins. Their origin is at the inferior margin of the inguinal ligaments and they terminate when they join the internal iliac veins (to form the common iliac veins).Iris dilator muscleScanning laser ophthalmoscopyNeuro-ophthalmology: Neuro-ophthalmology is an academically-oriented subspecialty that merges the fields of neurology and ophthalmology, often dealing with complex systemic diseases that have manifestations in the visual system. Neuro-ophthalmologists initially complete a residency in either neurology or ophthalmology, then do a fellowship in the complementary field.Intraocular pressureEndodontic retreatment: Endodontic retreatment describes a dental root canal procedure that is carried out on a tooth that has previously had root canal treatment. For this reason it is also called "repeat root canal treatment".Retinal regeneration: Retinal regeneration deals with restoring retinal function to vertebrates so impaired.Acute limb ischaemiaPratt Test: The Pratt Test is a simple test to check for deep vein thrombosis in the leg. It involves having the patient lie supine with the leg bent at the knee, grasping the calf with both hands and pressing on the popliteal vein in the proximal calf.North Bengal Medical CollegeHU-336Trabeculoplasty: Trabeculoplasty is a laser treatment for glaucoma. It is done on an argon laser equipped slit lamp, using a Goldmann gonioscope lens mirror.Operation Eyesight Universal: Operation Eyesight Universal is a Canada-based international development organisation, founded in 1963. It works to prevent avoidable blindness and to cure blindness that is treatable.Dropping mercury electrode: The dropping mercury electrode (DME) is a working electrode made of mercury and used in polarography. Experiments run with mercury electrodes are referred to as forms of polarography even if the experiments are identical or very similar to a corresponding voltammetry experiment which uses solid working electrodes.Ambesh maneuver: Ambesh maneuver is a technique that involves the simple external compression of internal jugular vein in supraclavicular fossa to prevent and diagnose misplacement of the subclavian vein catheter into the internal jugular vein (IJV). The subclavian vein is a big vessel that drains the blood from the hand, forearm and the upper arm into the right side of the heart through superior vena cava.Splenic vein: The splenic vein (formerly the lienal vein) is a blood vessel that drains blood from the spleen, the stomach fundus and part of the pancreas. It is part of the hepatic portal system.Intraoperative floppy iris syndromeArterial resistivity index: The arterial resistivity index (also called as Resistance index, abbreviated as RI), developed by Leandre Pourcelot, is a measure of pulsatile blood flow that reflects the resistance to blood flow caused by microvascular bed distal to the site of measurement.Optimax: Optimax is a UK-based laser eye treatment specialist which has 38 locations nationwide. Optimax was established as one of the first private clinics to offer laser eye surgery.Great cerebral vein: The great cerebral vein is one of the large blood vessels in the skull draining the cerebrum (brain). It is also known as the "vein of Galen" (VG), named for its discoverer, the Greek physician Galen.Optic disc: The optic disc or optic nerve head is the point of exit for ganglion cell axons leaving the eye. BecauseBevacizumabSpinal decompression: Spinal decompression is the relief of pressure on one or many pinched nerves (neural impingement) of the spinal column.Outline of photography: The following outline is provided as an overview of and topical guide to photography:Vascular endothelial growth factor (VEGF) IRES ASuperficial velocity: Superficial velocity (or superficial flow velocity), in engineering of multiphase flows and flows in porous media, is a hypothetical (artificial) flow velocity calculated as if the given phase or fluid were the only one flowing or present in a given cross sectional area. Other phases, particles, the skeleton of the porous medium, etc.Charles D. Phelps: Charles Dexter Phelps (September 16, 1937 – September 13, 1985) was a prominent American medical doctor, professor, and researcher in the field of ophthalmology. The clinical studies he oversaw contributed to significant advances in the scientific understanding and surgical and pharmacological treatment of glaucoma.Azygos lobeCapillaryBrachiocephalic vein: The left and right brachiocephalic veins (or innominate veins) in the upper chest are formed by the union of each corresponding internal jugular vein and subclavian vein. This is at the level of the sternoclavicular joint.Macula of retina: The macula or macula lutea (from Latin macula, "spot" + lutea, "yellow") is an oval-shaped pigmented area near the center of the retina of the human eye. It has a diameter of around .LevobetaxololEthernet flow control: Ethernet flow control is a mechanism for temporarily stopping the transmission of data on Ethernet family computer networks. The first flow control mechanism, the PAUSE frame, was defined by the IEEE 802.Aqueous humour: The aqueous humour is a transparent, gelatinous fluid similar to plasma, but containing low protein concentrations. It is secreted from the ciliary epithelium, a structure supporting the lens.Epiretinal membrane