Influence of Central Corneal Thickness (CCT) on Intraocular
... glaucoma compared with nonmyopes, rising as their degree of myopia increases10,11. Considering that if there are over 1 million refractive procedures performed per year, 10000–30000 of these patients may eventually develop glaucoma. The measurement of their IOP is an integral part of their managemen ...
... glaucoma compared with nonmyopes, rising as their degree of myopia increases10,11. Considering that if there are over 1 million refractive procedures performed per year, 10000–30000 of these patients may eventually develop glaucoma. The measurement of their IOP is an integral part of their managemen ...
Viktor`s Notes * Corneal Disorders
... Any cornea opacification in red eye is corneal infection until proven otherwise (opacification may or may not take up fluorescein) - this is ophthalmic emergency! ...
... Any cornea opacification in red eye is corneal infection until proven otherwise (opacification may or may not take up fluorescein) - this is ophthalmic emergency! ...
Amblyopia Management
... B.S. Goel: Risk factors include uncorrected refractive errors, strabismic conditions, unattended congenital cataract and corneal opacities, and varying degree of ptosis. Incidence and severity of amblyopia is more common if the condition is unilateral. Frank J Martin: Risk factors for amblyopia incl ...
... B.S. Goel: Risk factors include uncorrected refractive errors, strabismic conditions, unattended congenital cataract and corneal opacities, and varying degree of ptosis. Incidence and severity of amblyopia is more common if the condition is unilateral. Frank J Martin: Risk factors for amblyopia incl ...
Amblyopia and binocular vision
... Amblyopia is diminished vision that results from inadequate visual experience during the first years of life. Typically, amblyopia is clinically defined as reduced visual acuity accompanied by one or more known amblyogenic factors, such as strabismus, anisometropia, high refractive error, and cataract ...
... Amblyopia is diminished vision that results from inadequate visual experience during the first years of life. Typically, amblyopia is clinically defined as reduced visual acuity accompanied by one or more known amblyogenic factors, such as strabismus, anisometropia, high refractive error, and cataract ...
Fundamental Concepts of Chronic Angle
... There are several angle-closure mechanisms that play part in causing anatomical angle-closure. These include pupillary block, plateau iris, thick peripheral lens, lens-related causes, and ciliary block. Classification of mechanism into four level of blockage identifies obstructions to aqueous flow a ...
... There are several angle-closure mechanisms that play part in causing anatomical angle-closure. These include pupillary block, plateau iris, thick peripheral lens, lens-related causes, and ciliary block. Classification of mechanism into four level of blockage identifies obstructions to aqueous flow a ...
Mature Bone in the Eye: A Case of Choroidal Osteoma
... healthy young adults, its tissue composition, absence of preceding ocular disease, and its peripapillary location.1,4 It is usually seen in young healthy females with no racial or genetic predilection; although there were reports of males and patients in their 4th decade with choroidal osteoma. It h ...
... healthy young adults, its tissue composition, absence of preceding ocular disease, and its peripapillary location.1,4 It is usually seen in young healthy females with no racial or genetic predilection; although there were reports of males and patients in their 4th decade with choroidal osteoma. It h ...
Cornea and Glaucoma
... glaucoma. This algorithm showed that 2.5 mmHg was correlated with a 50-µm difference from the baseline CCT. Each of these corrective factors had proponents, and the use of algo‐ rithms to correct for the IOP based on the CCT became popular. The LALES concluded that the CCT is an independent factor i ...
... glaucoma. This algorithm showed that 2.5 mmHg was correlated with a 50-µm difference from the baseline CCT. Each of these corrective factors had proponents, and the use of algo‐ rithms to correct for the IOP based on the CCT became popular. The LALES concluded that the CCT is an independent factor i ...
Corneal Transplant, Endothelial Keratoplasty
... transplantation. If the donor tissue comprises Descemet’s membrane and endothelium alone, the technique is known as Descemet’s membrane endothelial keratoplasty (DMEK). By eliminating the stroma on the donor tissue and possibly reducing stromal interface haze, DMEK is considered to be a potential im ...
... transplantation. If the donor tissue comprises Descemet’s membrane and endothelium alone, the technique is known as Descemet’s membrane endothelial keratoplasty (DMEK). By eliminating the stroma on the donor tissue and possibly reducing stromal interface haze, DMEK is considered to be a potential im ...
AMBLYOPIA IN CHILDREN: THERAPY AND FOLLOW-UP Pia Agervi Thesis for doctoral degree (Ph.D.)
... development in childhood. Cataract, anisometropia and strabismus are well-known causes of amblyopia. Bilateral congenital cataract is a common cause of treatable childhood blindness. Early surgery and intense postoperative amblyopia therapy can result in good visual acuity (VA). In the developing wo ...
... development in childhood. Cataract, anisometropia and strabismus are well-known causes of amblyopia. Bilateral congenital cataract is a common cause of treatable childhood blindness. Early surgery and intense postoperative amblyopia therapy can result in good visual acuity (VA). In the developing wo ...
Pediatric Cataract Management - All India Ophthalmological Society
... of the surgery, spacing of cataract surgery between two eyes, whether to go for an intra ocular lens implantation or not. One needs to be well versed with the primary posterior capsulotomy to avoid posterior capsular opacification and consequent amblyopia. Postoperative care need to be more aggressi ...
... of the surgery, spacing of cataract surgery between two eyes, whether to go for an intra ocular lens implantation or not. One needs to be well versed with the primary posterior capsulotomy to avoid posterior capsular opacification and consequent amblyopia. Postoperative care need to be more aggressi ...
Update on Amblyopia Treatment Evidence based Practice 2015
... Atropine may not work for every amblyopia patient • Check near VA and fixation in the good eye • Fixation (switching from good eye to amblyopic eye) is a good indicator that atropine should be effective to improve VA of the amblyopic eye • PEDIG reported that weekend atropine can improve visual a ...
... Atropine may not work for every amblyopia patient • Check near VA and fixation in the good eye • Fixation (switching from good eye to amblyopic eye) is a good indicator that atropine should be effective to improve VA of the amblyopic eye • PEDIG reported that weekend atropine can improve visual a ...
Hyperopia - Diamond Vision
... • The treatment for hyperopia depends on several factors such as the patient’s age, activities, and occupation. • Young patients may or may not require glasses or contact lenses, depending on their ability to compensate for their farsightedness with accommodation. • Glasses or contact lenses are req ...
... • The treatment for hyperopia depends on several factors such as the patient’s age, activities, and occupation. • Young patients may or may not require glasses or contact lenses, depending on their ability to compensate for their farsightedness with accommodation. • Glasses or contact lenses are req ...
Visual Psychophysics / Physiological Optics
... morphometry and axial eye length during accommodation were obtained. No significant change of the central corneal thickness or axial eye length was observed during accommodation. Increased accommodation demand caused movement of the crystalline lens toward the cornea, which resulted in decreased ant ...
... morphometry and axial eye length during accommodation were obtained. No significant change of the central corneal thickness or axial eye length was observed during accommodation. Increased accommodation demand caused movement of the crystalline lens toward the cornea, which resulted in decreased ant ...
Jonathan S. Myers, MD - Glaucoma Service Foundation to Prevent
... “GREAT Expectations: Glaucoma Risk Evaluation and Treatment,” Boston, Massachusetts. March 30, 2006 “When and Why do I like SLT: Pros and Cons vs. ALT and Indications for Trabeculoplasty, “ Memphis Eye Society, Memphis, Tennessee. May 13, 2006 ”Optic Nerve Imaging: What's Not to Love?” Memphis Eye S ...
... “GREAT Expectations: Glaucoma Risk Evaluation and Treatment,” Boston, Massachusetts. March 30, 2006 “When and Why do I like SLT: Pros and Cons vs. ALT and Indications for Trabeculoplasty, “ Memphis Eye Society, Memphis, Tennessee. May 13, 2006 ”Optic Nerve Imaging: What's Not to Love?” Memphis Eye S ...
Retinally-induced aniseikonia
... The results show that the aniseikonia of patients with retinal conditions may be field dependent. This means that the explanation of a uniform stretching or compression of the retinal receptors (as shown in Fig. 2) is in need of a modification. If there are stretching or compression forces close to ...
... The results show that the aniseikonia of patients with retinal conditions may be field dependent. This means that the explanation of a uniform stretching or compression of the retinal receptors (as shown in Fig. 2) is in need of a modification. If there are stretching or compression forces close to ...
OPTIC NERVE DISEASE
... You may only access and use this PowerPoint presentation for educational purposes. You may not post this presentation online or distribute it without the permission of the author. I have no conflicts to declare. ...
... You may only access and use this PowerPoint presentation for educational purposes. You may not post this presentation online or distribute it without the permission of the author. I have no conflicts to declare. ...
Prevalence of Open-Angle Glaucoma and Ocular
... examination, including measurement of intraocular pressure (IOP), visual field (VF) testing using an automated field analyzer, and simultaneous stereoscopic fundus photography of the optic disc. Ocular hypertension was defined as IOP of ⬎21 mmHg and the absence of optic disc damage or abnormal VF te ...
... examination, including measurement of intraocular pressure (IOP), visual field (VF) testing using an automated field analyzer, and simultaneous stereoscopic fundus photography of the optic disc. Ocular hypertension was defined as IOP of ⬎21 mmHg and the absence of optic disc damage or abnormal VF te ...
Miscellaneous corneal conditions (Imp for UGs)
... • Night blindness +/• Other features of malnutrition / ...
... • Night blindness +/• Other features of malnutrition / ...
Visual Field Testing
... Thyrotoxicosis with diffuse goiter without thyrotoxic crisis or storm Thyrotoxicosis with diffuse goiter with thyrotoxic crisis or storm Thyrotoxicosis with toxic single thyroid nodule without thyrotoxic crisis or storm Thyrotoxicosis with toxic single thyroid nodule with thyrotoxic crisis or storm ...
... Thyrotoxicosis with diffuse goiter without thyrotoxic crisis or storm Thyrotoxicosis with diffuse goiter with thyrotoxic crisis or storm Thyrotoxicosis with toxic single thyroid nodule without thyrotoxic crisis or storm Thyrotoxicosis with toxic single thyroid nodule with thyrotoxic crisis or storm ...
2.4 - PRIMARY ANGLE-CLOSURE
... Angle closure may result in raised IOP and cause structural changes in the eye. Primary angle-closure (PAC) is defined as an occludable drainage angle and features indicating that trabecular obstruction by the peripheral iris has occurred. The term glaucoma is added if glaucomatous optic neuropathy i ...
... Angle closure may result in raised IOP and cause structural changes in the eye. Primary angle-closure (PAC) is defined as an occludable drainage angle and features indicating that trabecular obstruction by the peripheral iris has occurred. The term glaucoma is added if glaucomatous optic neuropathy i ...
NSS513 - National Open University of Nigeria
... maintain the shape of the eye, but also allows it to retain some pliability. There are no mitochondria in the outer segments of the rods and cones, however, where the visual pigments are located. The lens of the eye is located just behind the iris. It is held in position by ligaments. Ordinarily, th ...
... maintain the shape of the eye, but also allows it to retain some pliability. There are no mitochondria in the outer segments of the rods and cones, however, where the visual pigments are located. The lens of the eye is located just behind the iris. It is held in position by ligaments. Ordinarily, th ...
Care of the Patient with Cataract
... prevalent ocular disease.1 In the United States, cataracts are the most frequently cited self-reported cause of visual impairment and the third leading cause of preventable blindness.2,3 Visual disability from cataracts accounts for more than 8 million physician office visits per year.4 When the dis ...
... prevalent ocular disease.1 In the United States, cataracts are the most frequently cited self-reported cause of visual impairment and the third leading cause of preventable blindness.2,3 Visual disability from cataracts accounts for more than 8 million physician office visits per year.4 When the dis ...
Glaucoma Surgical Treatments
... aqueous fluid from the anterior chamber directly into Schlemm's canal (Samuelson, 2008). The CyPass® Micro-Stent increases aqueous flow via implantation in the suprachoroidal space between the sclera and the ciliary body. The Xen Gel Stent (AqueSys Inc.) is for use during cataract surgery or as a st ...
... aqueous fluid from the anterior chamber directly into Schlemm's canal (Samuelson, 2008). The CyPass® Micro-Stent increases aqueous flow via implantation in the suprachoroidal space between the sclera and the ciliary body. The Xen Gel Stent (AqueSys Inc.) is for use during cataract surgery or as a st ...
Ophthalmology Microsoft Word
... C. vision field half falling out D. *vision field defect, which is not due to periphery E. total vision field absence 92. . M.obliqus inferior is innervated by next cranial nerve: A. II B. *III C. IV D. V E. VI 93. The objective method of measuring the visual acuty is: A. visometry with Sivtsevs tab ...
... C. vision field half falling out D. *vision field defect, which is not due to periphery E. total vision field absence 92. . M.obliqus inferior is innervated by next cranial nerve: A. II B. *III C. IV D. V E. VI 93. The objective method of measuring the visual acuty is: A. visometry with Sivtsevs tab ...
Visual impairment
Visual impairment, also known as vision impairment or vision loss, is a decreased ability to see to a degree that causes problems not fixable by usual means, such as glasses. Some also include those who have a decreased ability to see because they do not have access to glasses or contact lenses. Visual impairment is often defined as a best corrected visual acuity of worse than either 20/40 or 20/60. The term blindness is used for complete or nearly complete vision loss. Visual impairment may cause people difficulties with normal daily activities such as driving, reading, socializing, and walking.The most common causes of visual impairment globally are uncorrected refractive errors (43%), cataracts (33%), and glaucoma (2%). Refractive errors include near sighted, far sighted, presbyopia, and astigmatism. Cataracts are the most common cause of blindness. Other disorders that may cause visual problems include age related macular degeneration, diabetic retinopathy, corneal clouding, childhood blindness, and a number of infections. Visual impairment can also be caused by problems in the brain due to stroke, prematurity, or trauma among others. These cases are known as cortical visual impairment. Screening for vision problems in children may improve future vision and educational achievement. Screening adults may also be beneficial. Diagnosis is by an eye exam.The World Health Organization estimates that 80% of visual impairment is either preventable or curable with treatment. This includes cataracts, the infections river blindness and trachoma, glaucoma, diabetic retinopathy, uncorrected refractive errors, and some cases of childhood blindness. Many people with significant visual impairment benefit from vision rehabilitation, changes in their environmental, and assistive devices.As of 2012 there were 285 million people who were visually impaired of which 246 million had low vision and 39 million were blind. The majority of people with poor vision are in the developing world and are over the age of 50 years. Rates of visual impairment have decreased since the 1990s. Visual impairments have considerable economic costs both directly due to the cost of treatment and indirectly due to decreased ability to work.