Showing posts with label OPHTHALMOLOGY. Show all posts
Showing posts with label OPHTHALMOLOGY. Show all posts

Tuesday, 15 October 2013

Ophthalmology Journals and other Resources (E-Ophtha)

ophthalmology
Today I am sharing a wonderful Ophthalmology online Resource site eophtha.com .This portal is very helpful for those who are more interested in ophthalmology , especially post graduate students.The highlights of eoptha are   e-journal section,  ophthalmology powerpoint section, question banks from various exams and ophthalmology mnemonics .








Don't forget to visit my other best posts in Ophthalmology section.

Main Sections of E-ophtha are :


1) E Journal of Ophthalmology 

This is a  free access half-yearly web resource of ophthalmology which covers most  important topics in ophthalmology such as cataract surgery and lens implantation; glaucoma; retinal, vitreous and macular disorders; corneal and external disorders; refractive surgery; oculoplastic and orbital surgery; neuro-ophthalmology; and ocular manifestations of systemic disease.

2) Illustrated Occular Anatomy
Here anatomy of eye is described in a simple manner with good diagrams. Main contents are Ocular Anatomy at a glance, Anatomy of Conjunctiva, Anatomy of Cornea, Anatomy of Lens, Anatomy of Vitreous
Anatomy of Uvea, Anatomy of Anterior Chamber.

3) Mnemonics
Collection of opthalmology mnemonics to make your study more easy

4) Question papers of Ophthalmology

This section contains post graduate exam question papers from various Indian universities.

5) Powerpoint Gallery of Ophthalmology

One of the most popular section of eoptha. Contains a collection of opthalmology lecture notes in various topics.

6) Useful Websites on Ophthalmology

7) Ophthalmology Classroom

8) Group discussion

9) Ophthalmology Societies Links

10) Ophthalmology Fellowship informations

Don't forget to visit my other best posts in Ophthalmology section.


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Wednesday, 25 September 2013

Ophthalmology Mnemonics

ophthalmology mnemonics
Behcet's Disease - ORAL UPSET

Occlusive periphlebitis 
Retinitis 
Anterior uveitis 
Leakage from retinal vessels 
Ulceration (aphthous/genital) 
Pustules after skin trauma (Pathergy test) 
Scratching leaves lines (dermatographism) 

Erythema nodosum 
Thrombophlebitis
Cherry red spot: Causes
"Quick Pick My Tea BAGS"
Quinine amblyopia
niemann Pick's disease
Multiple sulfatase deficiency, Metachromatic leucodystrophy
Tay sach's disease
Berlin's edema
CRAO
Gaucher's disease, Gangliosidosis

Sandhoff's disease, Sialidosis

causes of Choroidal neovascular membrane with- HAMMAR

Histoplasmosis
ARMD
Multifocal Choroiditis
Myopia
Angiod
Rupture of the choroid


Posterior subcapsular cataract: Causes
"I Got A BSC"
Ionizing radiation
Glass blower's cataract
Atopic dermatitis
Busulfan
Steroids

Chloroquine

causes of trabecular pigmentation - PIGMENT
Pseudoexfoliation & Pigment dispersion syndrome
Iritis
Glaucoma (Post angle closure Glaucoma)
Melanosis of angle (oculodermal melanosis)
Endocrine (Diabetes & Addison’s Syndrome)
Naevus (Cogan-reese syndrome)
Trauma


sterilization in ophthalmology - ABCDEFG
AUTOCLAVE
BOILING
CHEMICALS like Alcohol (Rectified spirit), Isopropyl alcohol/CIDEX: 2% Glutaraldehyde
DRY HEAT temperature of 150°C is used for 90 minutes
ETHYLENE OXIDE for sterilization of IOL etc.
FUMIGATION of operation theatre/ FORMALIN vapour
GAMMA-IRRADIATION: Gamma rays from Cobalt-60


refractive indices of ocular media -8303 (from anterior to posterior)
cornea 1.38
aq humour 1.3
3
lens 1.4
0
vit humour 1.3
3


 "DWARF" for  Nystagmus
Direction=plane of movement-horizontal,vertical
Waveform= Pendular or Jerky
Amplitude= fine or coarse
Rest=At primary position or gaze evolked
Frequency= How often the eye moves

characteristics of Perinaud's Dorsal Midbrain Syndrome - "CLUES"

Convergence retraction nystagmus
Lightnear Dissociation
Upgaze paralysis
Eyelid retraction
Skew deviation

ocular features of acromegaly - ACROM
Angiod streaks
Chiasmal syndrome
Retinopathy
Optic atrophy,papilloedema
Muscle enlargement

systemic features of Marfan syndrome - MARFANS
Mitral prolapse
Aortic dissection
Regurgitant aortic valve
Fingers long (arachnodactyly)
Arm span>height
Nasal voice (high arched palate)
Sternal excavation

ocular features of Marfan’s syndrome - CLUMPS
Cupping (glaucoma)
Lattice
Upward lens subluxation
Myopia
Cornea Plana
Sclera blue

types of colour blindness- TuB PaR DoG
TRITOANOPES = BLUE
PROTOANOPES = RED
DEUTROANOPES= GREEN
Remember the causes of lid retraction with 4 MP
4M= Myasthenia Gravis,Marcus Gunn jaw winkling syndrome,Myotonic causes like dystrophica myotonica.Metabolic cuses like uraemia,cirrhosis
4P=Perinauds syndrome,Parkinson's Disease/Progressive supranuclear palsy,Ptosis of other eye,Palsy (aberrant III crnaial nerve regeneration)


content and veins draining the Cavernous Sinus - Rule of 3

3 Afferent veins: Sphenoparietal sinus (Vault veins), Supf Middle cerebral Vein (Brain), Ophthalmic vein (Orbit)
3 Efferent Veins: Superior petrosal sinus, Inferior Petrosal Sinus, Communicating vein to pterygoid plexus
3 Contents; Cranial Nerves (III,IV, V1,V2 & VI)
3 Areas Drain into it: Vault Bones, Brain (Cerebral Hemisphere), Orbit
3 Nerves: Motor(III,IV,VI),Sensory (V1,V2), Sympathetic


causes of pseudo tumor cerebri - " Idiopathic IDEA"

Idiopathic
Infections-Otitis media,mastoiditis,viral infections etc
Drugs-Steroid withdrawl,Vitamin A intoxication,Nalidixic acid,amidarone,cyclosporin,minocycline
Endocrine-obese,amennorrheic woman of child bearing age, Hypoparathyroidism
Anaemia

causes of downbeat nystagmus -DoWNBEAT

Degeneration,Demyelination or Drugs (Lithium)
Wernicke's Encephalopathy
Neoplasm or paraneoplastic cerebeller degeneration
Brainstem disease (Syringomyelia)
Encephalitis
Arnold-Chiari malformation
Trauma or Toxin


angle structures - "I Can See Till Schwalbe's Line"
Iris root
Cilliary Body
Scleral spur
Trabecular Meshwork
Schwalbe's Line

ocular structures derived from neuroectoderm - MORE
Muscles of pupil
Optic Nerve
Retina (with RPE)
Epithelium of Iris
Epithelium of Cilliary Body



structures derived from surface ectoderm - S1L2E3
Skin of Eyelids and its derivatives viz. cilia, tarsal glands, conjunctival gland
Lens, 
Lacrimal Gland,
Epithelium of Conjunctiva,
Epithelium of Cornea,
Epithelium of lacrimal passage


Stromal dystrophies - Marilyn Monroe Always Gets Her Man in LA City.
Macular dystrophy
Mucopolysaccharide
Alcian blue

Granular Dystrophy
Hyaline material
Masson's Trichrome

Lattice Dystrophy
Amyloid
Congo Red


drugs causing cataract -ABCD
Amiodarone 
Busulphan 
Chlorpromazine 
Dexamethasone


causes of Uniocular diplopia - ABCD
Astigmatism
Behavioral: psychogenic
Cataract
Dislocated lens



microtropia-  3 A
Anisometropia
Angle small
Absent central field (Central suppression scotoma)


congenital nystagmus - CONGENITAL

Convergence & eye closure dampens
Oscillopsia absent
Null zone that is present,increases foveation time which results in increased acuity
Gaze poisition doesnot change the horizontal direction of nystagmus
Equal amplitude and frequency in each eye
Near acuity is good
Inversion of optokinetic response
Turning of head to acheive null point
Abolishes in sleep
Latent (occlusion) nystagmus occurs

posterior scleritis -POST SCLER
Proptosis 
Ophthalmoplegia 
Swelling of disc 
Thickening of sclera (US/CT) & T sign (fluid in sub-Tenon’s space) 
Subretinal exudates 
Choroidal foLds 
Exudative RD 
Ring choroidal detachment



Keratoconus - CONES
Central scarring & Fleischer ring 
Oil drop reflex / Oedema (hydrops) 
Nerves prominent 
Excessive bulging of lower lid on downgaze (Munson’s sign) 
Striae (Vogt’s)



Iridocorneal Endothelial Syndrome -ICE

Iris Naevus
Chandler Syndrome
Essential Iris Atrophy



Don't forget to visit my other best posts in Mnemonics section. 
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Wednesday, 4 September 2013

The girl who cries tears of blood (Haemolacria)













A 20-year-old Chilean woman, Yaritza Oliva, cries tears of blood, and doctors aren't quite sure why.Since June, Oliva has been crying blood tears several times a day, a pain she called "indescribable." 

While doctors have not officially diagnosed the 20-year-old, it's likely that she is one of several people to develop haemolacria, a rare condition marked by bleeding from the eyes.

A simple eye infection and conjunctivitis were ruled out since Oliva continued to shed tears of blood several times per day.

Watch The Video




What is Haemolacria ???

Haemolacria is a physical condition that causes a person to produce tears that are partially composed of blood. It can manifest as tears that are anything from merely red-tinged to appearing to be entirely made of blood.

Haemolacria is a symptom of a number of diseases,and may also be indicative of a tumor in the lacrimal apparatus. It is most often provoked by local factors such as bacterial conjunctivitis, environmental damage or injuries.

Acute haemolacria can occur in fertile women and seems to be induced by hormones, similarly to what happens in endometriosis.

Though a sanguineous discharge is relatively frequent in conditions of acute conjunctival hyperaemia and inflammation, occurrence of bleeding from conjunctiva as an isolated phenomenon is exceptionally rare. 

Duke Elder  outlined the differential diagnosis of bloody tears; severe anaemia, jaundice, vascular tumours, Osler-Weber-Rendu disease (hereditary haemorrhagic telangiectasia) haemophilia and other coagulopathies.

Other causes reported are vicarious menstruation, conjunctival manipulation for follicle expression in trachoma, clinical treatment of conjunctiva with silver nitrate and epistaxis with retrograde blood stream into conjunctiva through puncta lacrimalia .

Recently Bona-volanta and Sammaritino  attributed orbital varix as a cause of bloody tears. In another interesting case Richard and Eifermam  blamed secondary giant papillary conjunctivitis for bloody tears.


Read more scientific journals about Haemolacria at Google Scholar

courtesy : www.ijo.in,wikipedia.org , isciencetimes.com ,news.com.au ,huffingtonpost.com

MEDICOS WORLD - www.mediconet.blogspot.com

Saturday, 5 December 2009

ophthalmology videos

www.rootatlas.com is chock-full of eye videos taken at the slit-lamp. Here you’ll find movies covering a wide variety of ocular pathology, ranging from the cornea all the way back to the retina.
Check out our huge selection of streamable/downloadable ophthalmology videos. These eye videos are great for beginning residents and medical students and the acting clinician. Plus, each is in a downloadable form for placing in powerpoint applications for group learning.



For useful medical websites http://mediconet.blogspot.com/

Eyetube


Eyetube is a web site created by a panel of experts to better educate ophthalmologists through the online archiving and sharing of videos.


Surgery Channels

Cataract Cornea Glaucoma Laser Vision Correction
Oculoplastics Refractive IOL Retina



Eyetube Sections

Video Collections Symposia Videos
Practice Development




For useful medical websites http://mediconet.blogspot.com/

Digital reference of ophthalmology



The Digital Reference of Ophthalmology is produced by the Edward S. Harkness Eye Institute, Department of Ophthalmology of Columbia University. This educational resource contains colour ophthalmic images and descriptive text covering oculoplastics, cornea and external diseases, glaucoma, lens and cataract, vitreous and retina, neuro-ophthalmology, and paediatric and strabismus.



For useful medical websites http://mediconet.blogspot.com/


Thursday, 5 November 2009

Atlas of eye disorders


RedAtlas.org is a free, electronic atlas of eye disorders designed to help Ophthalmologists and Optometrists-in-training learn to identify eye diseases through pattern recognition

Click here to find out how to use this website.


HomeAnterior SegmentGlaucomaNeuro-OphthalmologyOculoplasticsPathologyRetinaUveitis


For useful medical websites http://mediconet.blogspot.com/

Monday, 13 July 2009

EYEATLAS ONLINE

EYEATLAS ONLINE
It is a database of ophthalmological images that could be useful for eye doctors, general physicians and medical student


Pictures can be reproduced or used with permission of the author.

The index is on the top of each page.

The author
Umberto Benelli, MD, PhD is born in Carrara. Actually he work in the Eye Center of the University of Pisa as researcher.