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Optics:is the branch of physics which involves the behaviour and properties of light, including its interactions with matter and the construction of instruments that use or detect it

MII Ret Cam Pictures in Multiple Retinal Diseases ( Central and Peripheral)

Albino Fundus with Nystagmus Foveal Hypoplasia(By MII Ret cam )

MII Ret Cam : Make In India Retinal Camera is the First Smartphone Based Fundus imaging device with Capability of Imaging Peripheral Retina. MII Ret cam and imaging technique looks promising with stunning fundus pictures like these:   MII Ret Cam result in an Albino Fundus with Nystagmus Foveal Hypoplasia   Retinal hole, Ora, Parsplana   Central Serous Chorioretinopathy   ... Read More »

Colorblindness Glasses

Colorblindness Glasses

Colorblindness Glasses A person with red-green color blindness (more accurately called color vision deficiency) experiences the world differently because their red and green photopigments have more overlap than normal. By overlap, we mean spectral overlap, which is related to how the photopigments absorb light. Lets take a moment to understand how that happens: The photopigments are the light-absorbing molecules found in the ... Read More »

Pixium Vision Implants Restore Sight

Pixium Vision Implants Restore Sight

Pixium Vision Implants Restore Sight Prima Vision, a company based in Paris, France, is reporting that its PRIMA wireless subretinal implants for people who lost their vision has show a great deal of promise in a pre-clinical trial. The technology is designed specifically for those whose natural photoreceptors no longer function, yet who retain retinal neurons that can be electrically activated. A ... Read More »

KAMRA Inlay Corneal Implant to Replace Reading Glasses

KAMRA Inlay Corneal Implant to Replace Reading Glasses

KAMRA Inlay Corneal Implant to Replace Reading Glasses Reading glasses are a necessity for most people older than 40, when the blurriness known as presbyopia overtakes their ability to focus. Soon enough, it seems, middle-aged Americans will catch up with the rest of the world. A corneal inlay product, which is already sold in other parts of the world, is ... Read More »

Multifocal IOL evolution

Multifocal IOL evolution

Multifocal IOL evolution By Cheryl Guttman Krader; Reviewed by Rudy M.M.A. Nuijts, MD, PhD, and Soraya M.R. Jonker, MD Maastricht, The Netherlands—If the ultimate goal of implanting a multifocal IOL (MFIOL) is to achieve spectacle independence after cataract surgery, then choosing a lens with a trifocal diffractive optic may be more advantageous than one with a bifocal diffractive design. Such is ... Read More »

LENS IMPLANT COULD IMPROVE VISION BEYOND 20/20

LENS IMPLANT COULD IMPROVE VISION BEYOND 20/20

LENS IMPLANT COULD IMPROVE VISION BEYOND 20/20 A new bionic lens implant could give patients the unique ability to see three times better than standard 20/20 vision for the rest of their lives. Dr. Garth Webb, founder and CEO of Ocumetics Technology Corp, a company committed to eliminating glasses and contact lenses for patients, invented the Ocumetics Bionic Lens, which ... Read More »

Retinoscopy Simulator

Retinoscopy Simulator

Retinoscopy Simulator Retinoscopy (Ret) is a technique to obtain an objective measurement of the refractive error of a patient’s eyes. The examiner uses a retinoscope to shine light into the patient’s eye and observes the reflection (reflex) off the patient’s retina. While moving the streak or spot of light across the pupil the examiner observes the relative movement of the ... Read More »

“MII Ret Cam” First World Smartphone Based Peripheral Fundus imaging device

"MII Ret Cam" First World Smartphone Based Peripheral Fundus imaging device

“MII Ret Cam” – World First Smartphone Based Fundus imaging device with Capability of Imaging Peripheral Retina” Smartphone has revolutionized the fundus imaging in recent past. Researchers have been successful in making smart phone based cameras and devices with the ability to image limited area of fundus.  We have designed the device and the imaging technique that can image regions ... Read More »

Smartphone Retinal Camera

First Open Source Smartphone Retinal Camera

Smartphone Retinal Camera Inventor names: David Myung, Alexandre Jais, Robert Chang, and Mark Blumenkranz from Stanford University. Introduction Image-capture in ophthalmology is used extensively for disease documentation, treatment monitoring, and education. Traditionally, this has relied upon expensive, tabletop units operated by a trained technician in an outpatient clinic setting. The pervasive adoption of smartphones by physicians and the ever-improving built-in ... Read More »

Kestenbaum’s rule (Strength of reading plus lens)

Kestenbaum’s rule (Strength of reading plus lens)

Kestenbaum’s rule (Strength of reading plus lens) Kestenbaum’s rule: used to estimate strength of plus lens required to read newspaper print without accommodation Add power = reciprocal of best distance acuity Reciprocal of add power = working distance (in meters)Example: 20/80 vision; add = 80/20 = +4.00 D; working distance = 1/4 (0.25 m) Source: Review of Ophthalmolgy Book Ophthalmology ... Read More »

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