A Bright Vision for the Future
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Vision Rehabi I Itation for Patients with Age Related Macular Degeneration
Vision rehabi I itation for GARY S. RUBIN patients with age related macular degeneration Epidemiology of low vision The over-representation of macular degeneration patients in the low-vision clinic is The epidemiology of vision impairment is dealt reflected in the chief complaints of those with in detail elsewhere.1 However, there is one referred for rehabilitation. A study of 1000 particularly salient factor that bears emphasis. consecutive patients seen at the Wilmer Low The prevalence of vision impairment increases Vision clinic indicated that 64% listed 'reading' dramatically with advancing age. Statistics as their chief complaint, while other activities compiled in the UK by the Royal National were identified by fewer than 8% of patients. Institute for the Blind2 indicate that there were Undoubtedly the bias towards reading approximately 1.1 million blind or partially problems results partly from the nature of the sighted persons in 1996, of whom 82% were 65 low-vision services offered. Those served by a years of age or older. Thus it is not surprising to community-based programme that includes learn that the major causes of vision impairment home visits might be more likely to report are age-related eye diseases. Fig. 1 illustrates the problems with activities of daily living, while a distribution of causes of vision impairment blind rehabilitation centre would be more likely 5 from three recent studies?- Approximately to address mobility issues. Nevertheless, most equal percentages are attributed to macular macular degeneration patients are referred to degeneration and cataract, with smaller hospital or optometry clinic services, and as percentages for glaucoma, diabetic retinopathy their overwhelming concern is with reading, and optic neuropathies. -
Symptoms of Age Related Macular Degeneration
WHAT IS MACULAR DEGENERATION? wavy or crooked, visual distortions, doorway and the choroid are interrupted causing waste or street signs seem bowed, or objects may deposits to form. Lacking proper nutrients, the light- Age related macular degeneration (AMD) is appear smaller or farther away than they sensitive cells of the macula become damaged. a disease that may either suddenly or gradually should, decrease in or loss of central vision, and The damaged cells can no longer send normal destroy the macula’s ability to maintain sharp, a central blurry spot. signals from the macula through the optic nerve to central vision. Interestingly, one’s peripheral or DRY: Progression with dry AMD is typically slower your brain, and consequently your vision becomes side vision remains unaffected. AMD is the leading de-gradation of central vision: need for increasingly blurred cause of “legal blindness” in the United States for bright illumination for reading or near work, diffi culty In either form of AMD, your vision may remain fi ne persons over 65 years of age. AMD is present in adapting to low levels of illumination, worsening blur in one eye up to several years even while the other approximately 10 percent of the population over of printed words, decreased intensity or brightness of eye’s vision has degraded. Most patients don’t the age of 52 and in up to 33 percent of individuals colors, diffi culty recognizing faces, gradual increase realize that one eye’s vision has been severely older than 75. The macula allows alone gives us the in the haziness of overall vision, and a profound drop reduced because your brain compensates the bad ability to have: sharp vision, clear vision, color vision, in your central vision acuity. -
Macular Degeneration
DRIVEWELL Driving When You Have Macular Degeneration You have been a safe driver for years. For you, driving means freedom and control. As you get older, changes in your physical and mental health can affect how safely you drive. Macular degeneration (also known as age-related macular degeneration) damages the macula, a spot near the center of the retina (light-sensitive inner lining of the eyeball). It is a common eye problem among older drivers that makes it hard to drive safely. Age-related macular degeneration is the leading cause of new cases of blindness in people 65 and older. If you have macular degeneration, you may not notice any signs in the early stages. You may not know you have this condition until you lose your peripheral vision (what you see out of the corner of your eyes). In time it will affect your central vision, causing a dark or empty area in the center of your vision. How Can Macular Degeneration Affect the Way I Drive? • Your central vision may be dull and blurry. This can lead to loss of sharp vision. • You may not see the road, street signs, lane markers, and even people and bicyclists in the road. • You may need more bright light to see up close. • Colors may look less vivid or bright. • You may have trouble when you go from bright light to low light. • You may not be able to recognize people’s faces. What Should I Do if I Have Any of These Signs? As soon as you notice any of these warning signs: • Tell your family or someone close to you, especially if you have a family history of macular degeneration or have changes in your central vision. -
Detached and Torn Retina Retinal Detachments Occur in 1 out of 10,000 Americans Each Year
Detached and Torn Retina Retinal Detachments Occur in 1 Out of 10,000 Americans Each Year A retinal detachment is not as common as other eye conditions such as glaucoma or macular degeneration, however… it is just as serious and it is a vision threatening condition which should be treated as an emergency. Dr. Randy Katz, Florida Eye’s Diabetic Retinopathy, Retinal Detachment & Macular Degeneration Specialist says that the sooner a retinal tear or detachment is treated the better the chances of saving the vision in the eye. What Is a Retinal Detachment? The retina is the light-sensitive layer of tissue that lines the inside of the eye and sends visual messages through the optic nerve to the brain. When the retina detaches, it is lifted or pulled from its normal position. When this occurs, if not promptly treated, retinal detachment can cause permanent vision loss. In some cases there may be small areas of the retina that are torn. These areas, called retinal tears or retinal breaks, can lead to a retinal detachment. Vitreous gel, the clear material that fills the eyeball, is attached to the retina in the back of the eye. As we get older, the vitreous may change shape, pulling away from the retina. If the vitreous pulls a piece of the retina with it, it causes a retinal tear. Once a retinal tear occurs, vitreous fluid may seep through and lift the retina off the back wall of the eye, causing the retina to detach or pull away. 2 Are You At Risk for a Torn or Detached Retina? A retinal detachment can occur at any age, but it is more common in people over age 40. -
Strabismus, Amblyopia & Leukocoria
Strabismus, Amblyopia & Leukocoria [ Color index: Important | Notes: F1, F2 | Extra ] EDITING FILE Objectives: ➢ Not given. Done by: Jwaher Alharbi, Farrah Mendoza. Revised by: Rawan Aldhuwayhi Resources: Slides + Notes + 434 team. NOTE: F1& F2 doctors are different, the doctor who gave F2 said she is in the exam committee so focus on her notes Amblyopia ● Definition Decrease in visual acuity of one eye without the presence of an organic cause that explains that decrease in visual acuity. He never complaints of anything and his family never noticed any abnormalities ● Incidence The most common cause of visual loss under 20 years of life (2-4% of the general population) ● How? Cortical ignorance of one eye. This will end up having a lazy eye ● binocular vision It is achieved by the use of the two eyes together so that separate and slightly dissimilar images arising in each eye are appreciated as a single image by the process of fusion. It’s importance 1. Stereopsis 2. Larger field If there is no coordination between the two eyes the person will have double vision and confusion so as a compensatory mechanism for double vision the brain will cause suppression. The visual pathway is a plastic system that continues to develop during childhood until around 6-9 years of age. During this time, the wiring between the retina and visual cortex is still developing. Any visual problem during this critical period, such as a refractive error or strabismus can mess up this developmental wiring, resulting in permanent visual loss that can't be fixed by any corrective means when they are older Why fusion may fail ? 1. -
Refractive Changes After Scleral Buckling Surgery
Refractive changes after scleral buckling surgery Alterações refracionais após retinopexia com explante escleral João Jorge Nassaralla Junior1 ABSTRACT Belquiz Rodriguez do Amaral Nassaralla2 Purpose: A prospective study was conducted to compare the refractive changes after three different types of scleral buckling surgery. Methods: A total of 100 eyes of 100 patients were divided into three groups according to the type of performed buckling procedure: Group 1, encircling scleral buckling (42 patients); Group 2, encircling with vitrectomy (30 patients); Group 3, encircling with additional segmental buckling (28 patients). Refractive examinations were performed before and at 1, 3 and 6 months after surgery. Results: Changes in spherical equivalent and axial length were significant in all 3 groups. The amount of induced astigmatism was more significant in Group 3. No statistically significant difference was found in the amount of surgically induced changes between Groups 1 and 2, at any postoperative period. Conclusions: All three types of scleral buckling surgery were found to produce refractive changes. A correlation exists between additional segments and extent of refractive changes. Keywords: Retinal detachment/surgery; Scleral buckling/adverse effects; Refraction/ ocular; Biometry INTRODUCTION During the past several years, our Retina Service and others(1) have continued to use primarily solid implants with encircling bands. Only occa- sionally episcleral silicone rubber sponges are utilized. Changes in refrac- tion are frequent after retinal detachment surgery. The surgical technique used appears to influence these changes. Hyperopia(2) and hyperopic astig- matism may occur presumably by shortening the anteroposterior axis of the globe after scleral resections(1). Scleral buckling procedures employing an encircling band generally are expected to produce an increase in myopia and myopic astigmatism(1,3). -
Retinal Detachment with Subretinal and Vitreous Hemorrhages Causing Secondary Angle Closure Glaucoma Diagnosed with Ultrasound
Henry Ford Health System Henry Ford Health System Scholarly Commons Emergency Medicine Articles Emergency Medicine 5-22-2020 Retinal detachment with subretinal and vitreous hemorrhages causing secondary angle closure glaucoma diagnosed with ultrasound Michael B. Holbrook Daniel Kaitis Lily Van Laere Jeffrey Van Laere Christopher R. Clark Follow this and additional works at: https://scholarlycommons.henryford.com/ emergencymedicine_articles YAJEM-159017; No of Pages 2 American Journal of Emergency Medicine xxx (xxxx) xxx Contents lists available at ScienceDirect American Journal of Emergency Medicine journal homepage: www.elsevier.com/locate/ajem Retinal detachment with subretinal and vitreous hemorrhages causing secondary angle closure glaucoma diagnosed with ultrasound Michael B. Holbrook, MD, MBA a,⁎, Daniel Kaitis, MD b, Lily Van Laere, MD b, Jeffrey Van Laere, MD, MPH a, Chris Clark, MD a a Henry Ford Hospital, Department of Emergency Medicine, Detroit, MI, United States of America b Henry Ford Hospital, Department of Ophthalmology, Detroit, MI, United States of America A 90-year-old female with a past medical history of trigeminal neu- choroid/retina consistent with a retinal detachment. Her pain was con- ralgia and age-related macular degeneration (AMD) presented with a trolled with oral hydrocodone/acetaminophen. Ultimately her vision four-day history of a left-sided headache, nausea, and vomiting. Regard- was deemed unsalvageable given her age, length of symptoms, and ing her left eye, she reported intermittent flashes of light over the past lack of light perception. At time of discharge, her left eye's IOP was month and complete vision loss for four days. She denied a history of di- 49 mmHg. -
Retinopathy of Prematurity: an Update Parveen Sen, Chetan Rao and Nishat Bansal
Review article Retinopathy of Prematurity: An Update Parveen Sen, Chetan Rao and Nishat Bansal Sri Bhagwan Mahavir Introduction 1 ml of 10% phenylephrine (Drosyn) mixed in 3 ml Vitreoretinal Services, Retinopathy of prematurity (ROP) was originally of 1% tropicamide (after discarding 2 ml from 5 ml Sankara Nethralaya designated as retrolental fibroplasias by Terry in bottle) for pupillary dilatation. These combination 1952 who related it with premature birth.1 Term drops are used every 15 minutes for 3 times. 2 Correspondence to: ROP was coined by Heath in 1951. Punctum occlusion is mandatory after instilling the Parveen Sen, It is a disorder of development of retinal blood drops to reduce the systemic side effects of medica- Senior Consultant, vessels in premature babies. Normal retinal vascu- tion. Excess eye drops should also be wiped off to Sri Bhagwan Mahavir larization happens centrifugally from optic disc to prevent absorption through cheek skin. If the pupil Vitreoretinal Services, ora. Vascularization up to nasal ora is completed does not dilate in spite of proper use of medication, Sankara Nethralaya. by 8 months (36 weeks) and temporal ora by 10 presence of plus disease should be suspected. E-mail: [email protected] months (39–41 weeks).3 Repeated installation of topical drops should be The incidence of ROP is increasing in India avoided to prevent systemic problems. Sterile because of improved neonatal survival rate. Out of Alfonso speculum is used to retract the lids and wire 26 million annual live births in India, approxi- vectis for gentle depression. mately 2 million are <2000 g in weight and are at High-quality retinal images obtained using risk of developing ROP.3 In India the incidence of commercially available wide-angle fundus camera ROP is between 38 and 51.9% in low-birth-weight like the Retcam followed by Telescreening by a infants.3,4 trained ophthalmologist can also be done. -
Refractive Error Is a Disease of the Eye, and We Should Treat It
Refractive error is a disease of the eye, and we should treat it. believe that refractive error is a disease of the eye— no different from glaucoma, dry eye disease, and other issues for which we readily offer treatment. In the world of modern cataract and refractive surgery, we have the capability to correct visual Iacuity that is compromised due to astigmatism and other types refractive error, so why shouldn't we treat astigmatism during cataract surgery? A large percentage of our cataract patients, about 75%, have at least 0.50 D of astigmatism. Even this small amount of astigmatism can and often does create issues visually for patients. The higher the My Philosophy of level of astigmatism, the more it can affect vision. My philosophy is, why not try to help these people? Correcting their astigmatism will help them to achieve better visual acuity, and this is even more crucial in patients who elect a multifocal, extended depth of focus, or other premium IOL. It is important to educate patients about their astigmatism and to relay to them what we can do ASTIGMATISM to correct it. The level of care and attention to detail affects everything, from our surgical outcomes, to the practice’s reputation, to future referral patterns. THRESHOLDS AND BEST PRACTICES My threshold for astigmatism treatment is about 0.75 D. Above that, the patient can lose contrast and can have functional visual acuity issues if the astig- MANAGEMENT matism is not addressed. I believe that correction of low astigmatism, especially, is low-hanging fruit, as it provides surgeons with an additional opportunity to improve their practices. -
Complex Retinal Detachment
RETINA HEALTH SERIES | Facts from the ASRS The Foundation American Society of Retina Specialists Committed to improving the quality of life of all people with retinal disease. Complex Retinal Detachment: SYMPTOMS Proliferative Vitreoretinopathy and Giant Retinal Tears Proliferative vitreoretinopathy (PVR) is a condition in which Many patients with PVR report retinal scar tissue, or “membranes” form; this may occur symptoms of retinal traction with a retinal detachment. A key risk factor for developing (pulling), such as floaters or flashes of light. Accumulation of PVR is a giant retinal tear—a large tear that involves at least fluid underneath the retina results 25% of the retina. When PVR or a giant retinal tear is in a loss of peripheral (side) vision. present, a retinal detachment is classified as “complex.” When the detachment involves the center of the retina, called Causes: Complex retinal detachments due to PVR are associated with retinal the macula, central vision loss will scar tissue or membranes; these ultimately contract, pull, and stretch the occur. Patients with chronic retinal retina, causing retinal tears or stretch holes. When the detached retina detachment may also develop contracts, so-called “star folds” often develop (Figure 1). problems such as elevated pressure The reason these membranes in the eye and inflammation. form is uncertain, but it is thought Some patients experience no to be due to cells growing on the symptoms, particularly: retinal surface. Passage of liquefied • Younger patients vitreous gel through a retinal tear • Cases where the macula is not or hole results in an accumulation involved of fluid under the retina (subretinal • Patients whose detachment has fluid) and progression of the progressed slowly retinal detachment. -
Strabismus, Amblyopia Management and Leukocoria 431Team
Strabismus, Amblyopia Management and Leukocoria Done By: Tareq Mahmoud Aljurf Lecture mostly contains pictures, but the doctor gave a lot of additional info which we added here. Leukocoria Leukocoria is white opacity of the pupil, and it is a sign not a diagnosis. Causes will be presented going backwards through the eye structures: 1. Cataract Cataract: can be congenital or acquired, usually causes blurred vision and glare. Using the ophthalmoscope if you see nice red reflex on both eyes (pic on right.) unlikely to have any visual problems. Doctor’s notes: Congenital cataract is very important, because if you don’t treat it in the first months of life Irreversible amblyopia. For the brain to unify the 2 images both should have the same shape, size and clarity. If one is clear and the other is not brain gets confused can’t put them together suppresses image from the cataract eye. If this continues for 2,3 or 4 months amblyopia. For example: If the child presents with the problem at 1 year of age already too late, you can’t do anything. (Because amblyopia happens much earlier than 1yr) The eye is connected to the brain Retina and optic nerve regarded as parts of the CNS it’s a neurological problem difficult to reverse after 3 months of suppression. 2. Persistent hyperplastic primary vitreous PHPV is a congenital condition caused by failure of the normal regression of the primary vitreous. It is usually associated with unilateral vision loss Doctor’s notes: During embryology, blood vessels come from the optic nerve to nourish the lens, they usually disappear clear vitreous. -
The Eyes in Marfan Syndrome
THE EYES IN MARFAN SYNDROME Marfan syndrome and some related disorders can affect the eyes in many ways, causing dislocated lenses and other eye problems that can affect your sight. Except for dislocated lenses, these eye problems also occur in the general population, which is why doctors do not always realize they are caused by Marfan syndrome. It is important to know that, even though these problems occur in the general population, they are much more common in people who have Marfan syndrome. About 6 in 10 people with Marfan syndrome have dislocated lenses in one or both eyes. People with Marfan syndrome should see an ophthalmologist (a medical doctor who takes care of the eyes) to find out if they have any eye problems and learn how to care for their eyes. What are the common types of eye problems in people with Marfan syndrome? Some features of the eye related to Marfan syndrome that can cause vision problems include: Dislocated lenses About 6 in 10 people with Marfan syndrome have dislocated lenses in one or both eyes. This means the lens, located at the front of the eye, has slipped out of place because the connective tissue that holds the lens in place (called zonules) is weak. When this happens, the lens can slip in any direction—up, down, to the side, or back. It can slip a little or completely out of place, and anywhere in between. With the lens out of place, the eye can’t focus properly and vision is blurry. MARFAN.ORG | 800-8-MARFAN EXT.