The retina is the innermost of the three coats of the eye. This layer is responsible for converting relevant information from the image of the external environment into neural impulses that are transmitted to the brain. Broadly retina consists of two primary layers: an inner neurosensory retina and retinal pigment epithelium (RPE). 1 ? Sensory retina develops from the inner layer of the neuroectod...Read More
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Cytokines: Made Simple for the Ophthalmologists
In the time of the global pandemic known as COVID- 19, everyone has heard the phrase ‘cytokine storm’ and how it can be a deadly consequence of the SARS- CoV2 virus infection. What are these cytokines though? What do they normally do in our bodies and why are they sometimes so deadly? Little multifunctional molecules The presence of pus-filled exudates, fever, localized swelling, and pain have bee...Read More
Ten Tenets of Fundus Autofluorescence
1. What is fundus autofluorescence? Fundus autofluorescence is a study of the topographic distribution of naturally occurring molecules in the human fundus. These molecules are called fluorophores. In principle, FAF is similar to fundus fluorescein angiography as both of them study the fluorescence pattern of molecules. However, the fluorophore molecules are naturally occurring compounds in the fo...Read More
A to Z Eponyms in ophthalmology
Often asked in vivas, ophthalmic eponyms or various signs/ instruments in ophthalmology which share the same name, are one of the favorite questions of many examiners. We have tried to compile common such terminologies in ophthalmology for the benefit of postgraduate students. A Amsler (Marc Amsler : Swiss ophthalmologist, 1891-1968) Amsler Grid- The Amsler Grid is a square-shaped grid used to det...Read More
Glaucoma in Pseudophakia And Aphakia
Glaucoma in pseudophakia and aphakia is secondary glaucoma in which intraocular pressure (IOP) is elevated following cataract removal. This diagnosis is given only if there was no glaucoma prior to cataract removal.[1] The terms aphakic and pseudophakic glaucoma have been previously used in literature. Currently, this terminology is not preferred. Glaucoma in pseudophakia and aphakia refer to cond...Read More
How to Edit Your Surgical Videos
Introduction Video recording in ophthalmology dates back to 1951 when Sir Harold Ridley filmed his pioneering lens implantation procedure in color. Ophthalmic surgical videos are a great source of demonstrating one’s technique on various platforms as well as discussing any unusual case tackled successfully in the operation theatre. It acts as an educational resource providing tips and tricks to po...Read More
To most of us, computers have become an irreplaceable necessity in our lives at work and at home. Working on the computer screen at such a short distance can result in eyestrain, blurred vision, redness, irritation of eyes, and posture-related musculoskeletal problems, which is called Computer vision syndrome or digital eye strain. Definition The American Association of Optometrists defines Comput...Read More
Basics of Grant Writing: From An Early Career Researchers Perspective
“Writing a grant is considered to be more strenuous than doing research itself.”(1) With the number of grant applications on a rise and a steady decline in the funding, the nuances of grant writing become pertinent for a successful grant application. (2) In this article, we discuss the reasons for applying for a grant, how and when to apply, the common hurdles, and tips for a successful grant prop...Read More
Intermittent Exotropia Simplified for the Postgraduates
Intermittent exotropia (IXT) is the most common type of strabismus in children as well as adults, especially in the Asian and South Asian populations. Owing to the intermittent nature of exotropia there is usually good binocular function and stereoacuity at near fixation Small-angle exotropia is observed in normal neonates which usually disappears by the age of 2-4 months. Most adults will have sm...Read More
Instruments used in Cataract Surgery: Ready Reckoner for the Post Graduates
Cataract Surgery is the most common surgery performed all over the world. Proper knowledge of surgical instruments used in cataract surgery is essential. This article gives you an overview and description of instruments commonly used in cataract surgery. Simcoe's irrigation- aspiration cannula: Design: Available in two different designs. The original model also called the direct Simcoe where a...Read More