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Showing posts from December, 2022

A SWIPE ON CLINICAL INVESTIGATION IN OPTOMETRY

  DAHUNSI AYOMIKUN NIFEMI (OD) Images courtesy of Dr Xiaoxuan Liu and Dr Aditya Kale, University Hospitals Birmingham NHS Foundation Trust. We’ve witnessed an advancement in leaps and bounds over the last years In Optometry practice. There have constantly been technological advancements to our toolkit to help us diagnose and improve our clinical investigations as a clinician.  A tonometer is a vital instrument that measures the pressure inside of your eye. Knowing the intraocular pressure and how it changes with time, helps us monitor your eye health in special conditions like glaucoma, Fuchs’ dystrophy, post-LASIK, corneal edema, refractive surgery, keratoconus, and irregular or thin corneas. Pachymetry has become a standard ancillary test in the complete eye examination for patients at risk of having glaucoma. The first widespread use of this test was as a late addition to the Ocular Hypertension Treatment Study (OHTS) after it had been observed that patients with thicker corneas wer

OPTOMETRY AND ARTIFICIAL INTELLIGENCE (AI)

  BY EJIOFOR ESTHER CHIOMA (O.D)  Artificial intelligence (AI) is defined as the theory and development of computer systems able to perform tasks that normally require human intelligence, such as visual perception, speech recognition, or decision-making. It utilizes software to stimulate cognitive function such as learning and problem solving. The use of AI is being applied in the areas of sports, agriculture, administration, and even human relations. Therefore, healthcare, and as would be discussed specifically in this piece, Optometry, is surely no exception to the gains that could be derived from Artificial Intelligence. The ease, speed and accuracy that could be mined through exploration of solutions in AI are limitless. AI algorithms have been described for image analysis in retinal diseases including diabetic retinopathy, agerelated macular degeneration, retinopathy of prematurity, retinal vascular occlusions, and retinal detachment; they have also been described for use in glauc

THE LOVE OF OPTICS THE BEGINNING OF VISION

  Written by OPARAKU DIVINE C. and SUNKANMI AROGBOKUN OD. Is it not funny how Science claimed to have answers to everything? The most comical is representing lines as light rays, while making us to see the crystalline lens as this glass thing with an amount of refractive tendencies and powers. As if it were not enough. Again, were we told by science that the vascularized yellow pinkish tissue behind the eye is what? A film! Yeah, a camera film that images are implanted on. Finally, we were bewitched that this film-acting structure sends some electrical signal, are you playing? through some imaginary channels to the brain. Okay, I learnt they were not imaginary, CT scan could pick them, fine, I have seen it before; the visual pathway. But how do you explain the electric current? Believe me it was explained, in a speech given by Science, titled Electrophysiology of Vision. Who then speeched the afore? At least I now know Science lay claim to electrophysiology. How about the earlier jargo

FUNNY CYSTOIDS: LET US DISCUSS RETINAL DETACHMENT

  By Shiva Shangari B. Optom and Hamida Yahaya Shamaki A 27 year old, presented with a complaint of 2 years of gradual vision loss in his left eye. His best-corrected visual acuity was logMAR 1.30 (approximate Snellen equivalent, 20/400) OS. Funny how patient's dilated fundoscopy revealed a maculaoff inferotemporal retinal detachment (RD) in the left eye. Two oval cystoid abnormalities were seen at the 3-o’clock and 4- o’clock meridian near the equator, and a retinal hole was visualized near the equator at approximately the 4-o’clock meridian giving rise to spectacle looking image.   image from JAMAOPHTHALMOLOGY   Retina is a sensitive part of our eye where the image of the things we see is sent to the brain. Retinal detachment is the separation of the pigment epithelium of the retina and the neurosensory retina. It is a vision-threatening condition that must be treated. Unless it is treated, it can cause vision loss. It is common in aged people, those with a previous retinal detac

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