![Anisometropia](http://s1.studyres.com/store/data/009387453_1-feca4fc5250e92f371ddca2113f1e438-300x300.png)
Anisometropia
... Vertical differential prism and prism adaptation is usually not an issue with single vision lenses as the patient will simply move his/her head in order to look through the optical centres of the lenses. There is, of course, no prismatic effect at the optical centre of a lens. However, vertical diff ...
... Vertical differential prism and prism adaptation is usually not an issue with single vision lenses as the patient will simply move his/her head in order to look through the optical centres of the lenses. There is, of course, no prismatic effect at the optical centre of a lens. However, vertical diff ...
2.4 - PRIMARY ANGLE-CLOSURE
... This group of anterior, non-pupil-block mechanisms are sometimes erroneously referred to under the umbrella term “plateau iris”. They are the result of variations in iris and ciliary body anatomy that brings the peripheral iris into contact with the trabecular meshwork. These include a thicker iris, ...
... This group of anterior, non-pupil-block mechanisms are sometimes erroneously referred to under the umbrella term “plateau iris”. They are the result of variations in iris and ciliary body anatomy that brings the peripheral iris into contact with the trabecular meshwork. These include a thicker iris, ...
Current Eye Research - Science Division Forum
... decrease in synthesis of glycosaminoglycans (14–16). Furthermore, scleras from form-deprived eyes contain significantly more of the core protein of the cartilage proteoglycan, aggrecan, than do scleras from normal eyes (14), indicating that changes in the rate of synthesis of aggrecan underlie the c ...
... decrease in synthesis of glycosaminoglycans (14–16). Furthermore, scleras from form-deprived eyes contain significantly more of the core protein of the cartilage proteoglycan, aggrecan, than do scleras from normal eyes (14), indicating that changes in the rate of synthesis of aggrecan underlie the c ...
Orbital Decompression in Thyroid Eye Disease
... Thyroid-related orbitopathy (TRO) is part of a multisystemic disease mostly related to alterations of thyroid autoimmunity and characterized by a raised intraorbital pressure which causes disfigurement and functional deficits in the affected patient. Reduction of pathologically raised intraorbital p ...
... Thyroid-related orbitopathy (TRO) is part of a multisystemic disease mostly related to alterations of thyroid autoimmunity and characterized by a raised intraorbital pressure which causes disfigurement and functional deficits in the affected patient. Reduction of pathologically raised intraorbital p ...
Tobramycin_Dexamethasone Tubilux Pharma eye drops
... Tobramycin/Dexamethasone Tubilux Pharma 3 mg/ml + 1 mg/ml eye drops, suspension is for topical use only and not for injection or oral use. Prolonged use of topical ophthalmic corticosteroids (i.e., longer than the maximum duration used in clinical trials [24 days]) may result in ocular hypertension/ ...
... Tobramycin/Dexamethasone Tubilux Pharma 3 mg/ml + 1 mg/ml eye drops, suspension is for topical use only and not for injection or oral use. Prolonged use of topical ophthalmic corticosteroids (i.e., longer than the maximum duration used in clinical trials [24 days]) may result in ocular hypertension/ ...
Glaucoma - Learnblock
... “Glaucoma describes a group of eye diseases in which there is a progressive damage to the optic nerve characterised by specific structural abnormalities of optic nerve head and associated patterns of visual field loss” ...
... “Glaucoma describes a group of eye diseases in which there is a progressive damage to the optic nerve characterised by specific structural abnormalities of optic nerve head and associated patterns of visual field loss” ...
Surgical Visual Rehabilitation Techniques
... cornea without corneal abrasion, and (4) implantation of the MyoRing into the corneal pocket. The advantage of this technique is that it avoids corneal abrasion. Therefore, patients do not experience pain and have a shorter recovery time. (3) As a visual rehabilitation technique in keratoconus, we u ...
... cornea without corneal abrasion, and (4) implantation of the MyoRing into the corneal pocket. The advantage of this technique is that it avoids corneal abrasion. Therefore, patients do not experience pain and have a shorter recovery time. (3) As a visual rehabilitation technique in keratoconus, we u ...
optics
... Law and professional conduct have been on my mind a lot recently and I’ve been refreshing my memory of the Opticians Act as I was asked to attend the GOC’s steering group on illegal supply, which seeks to address illegal supply of contact lenses in part through the development of a voluntary code. T ...
... Law and professional conduct have been on my mind a lot recently and I’ve been refreshing my memory of the Opticians Act as I was asked to attend the GOC’s steering group on illegal supply, which seeks to address illegal supply of contact lenses in part through the development of a voluntary code. T ...
Uveitis
... The ocular inflammation in the fellow eye becomes apparent usually within 3 months after injury. Clinical presentation is an insidious or acute anterior uveitis with mutton-fat keratic precipitates. The posterior segment manifests moderate to severe vitritis, usually accompanied by multiple yellowis ...
... The ocular inflammation in the fellow eye becomes apparent usually within 3 months after injury. Clinical presentation is an insidious or acute anterior uveitis with mutton-fat keratic precipitates. The posterior segment manifests moderate to severe vitritis, usually accompanied by multiple yellowis ...
Internal Osmotic Pressure as a Mechanism of Retinal Attachment in
... the traction and blocking egress of fluid through the hole by reapproximation of the retina to the underlying tissues. Details of treatment options for this condition have been thoroughly reviewed by Wilkinson and Rice [8]. An increasingly common technique to achieve these results is vitrectomy surg ...
... the traction and blocking egress of fluid through the hole by reapproximation of the retina to the underlying tissues. Details of treatment options for this condition have been thoroughly reviewed by Wilkinson and Rice [8]. An increasingly common technique to achieve these results is vitrectomy surg ...
Spontaneous exudative retinal detachment in a patient with sturge
... Erectile dysfunction medications including phosphodiesterase type 5 inhibitors, such as sildenafil, have been associated with numerous ocular side effects including elevation of intraocular pressure, choroidal thickening, and central serous chorioretinopathy [19-22]. The major active ingredient of t ...
... Erectile dysfunction medications including phosphodiesterase type 5 inhibitors, such as sildenafil, have been associated with numerous ocular side effects including elevation of intraocular pressure, choroidal thickening, and central serous chorioretinopathy [19-22]. The major active ingredient of t ...
Summer 2016 - Dean McGee Eye Institute
... As summarized in the feature story on pages ophthalmologists committed to providing the 34-39, choroidal melanoma is the most latest techniques in the treatment of ocular and common adult tumor of periocular tumors that can the eye itself. This is often affect patients ranging in treated with radio ...
... As summarized in the feature story on pages ophthalmologists committed to providing the 34-39, choroidal melanoma is the most latest techniques in the treatment of ocular and common adult tumor of periocular tumors that can the eye itself. This is often affect patients ranging in treated with radio ...
Corneal Lipid Deposition - Pittsburgh Veterinary Specialty
... The cornea is the clear front part of the eye which acts like a car’s windshield. It protects the intraocular structures and allows light to pass into the eye to the retina. Corneal lipid deposition is a group of ocular diseases in which “white” opaque material (lipid, cholesterol, or calcium) is ac ...
... The cornea is the clear front part of the eye which acts like a car’s windshield. It protects the intraocular structures and allows light to pass into the eye to the retina. Corneal lipid deposition is a group of ocular diseases in which “white” opaque material (lipid, cholesterol, or calcium) is ac ...
Crystalline lens and refractive development
... same age when myopia reaches its maximum prevalence (possibly the age at which axial elongation stops). From then on the prevalence of hyperopia increases slowly during adult life, reaching a value of 50% at age 70, and from that age it decreases abruptly, by the same time as myopia prevalence incre ...
... same age when myopia reaches its maximum prevalence (possibly the age at which axial elongation stops). From then on the prevalence of hyperopia increases slowly during adult life, reaching a value of 50% at age 70, and from that age it decreases abruptly, by the same time as myopia prevalence incre ...
Proptosis (`exophthalmos`, or `bulging` of the eye)
... The most common cause for proptosis of one or both eyes is thyroid eye disease, in which abnormal thyroid activity – for reasons unknown – can cause swelling of the muscles and fat around the eye. There is no single test to confirm or monitor the activity of TED: a diagnosis is made chiefly on clini ...
... The most common cause for proptosis of one or both eyes is thyroid eye disease, in which abnormal thyroid activity – for reasons unknown – can cause swelling of the muscles and fat around the eye. There is no single test to confirm or monitor the activity of TED: a diagnosis is made chiefly on clini ...
MOORFIELDS PHARMACEUTICALS: EMUSTIL ADVERTORIAL
... the lacrimal gland, beneath the upper eyelid. This layer provides moisture, oxygen and electrolytes to the cornea. In aqueous deficient dry eye, where tear production is impaired, the aqueous layer can become more concentrated (hypertonic) and can lead to increased tear osmolarity. In severe dry eye ...
... the lacrimal gland, beneath the upper eyelid. This layer provides moisture, oxygen and electrolytes to the cornea. In aqueous deficient dry eye, where tear production is impaired, the aqueous layer can become more concentrated (hypertonic) and can lead to increased tear osmolarity. In severe dry eye ...
Accommodation after an implantable collamer lens implantation in
... the subject at 40 cm. The cross-cylinder lenses (±0.50 DC) were placed in front of the eyes (phoropter), and the patient was asked to indicate which group of lines was darker (vertical or horizontal). The end point of this test was that blackness or clarity of the horizontal and vertical lines was e ...
... the subject at 40 cm. The cross-cylinder lenses (±0.50 DC) were placed in front of the eyes (phoropter), and the patient was asked to indicate which group of lines was darker (vertical or horizontal). The end point of this test was that blackness or clarity of the horizontal and vertical lines was e ...
Correction of Presbyopia - Centre for Contact Lens Research
... Fitting GP multifocals can seem overwhelming, but do not let that deter you; you can learn how to fit GP multifocals with ease, particularly in light of the advances offered by today’s GP multifocal technology. ...
... Fitting GP multifocals can seem overwhelming, but do not let that deter you; you can learn how to fit GP multifocals with ease, particularly in light of the advances offered by today’s GP multifocal technology. ...
Chapter 31 The Law of Refraction
... as a wave phenomenon. We will now simplify the analysis of refraction by using only the ray model of light. Thus, the refraction of waves in figure 31.2 will now be shown as the equivalent refraction of rays in figure 31.3. The dashed line in figure 31.3(a) is the direction that the incident ray wou ...
... as a wave phenomenon. We will now simplify the analysis of refraction by using only the ray model of light. Thus, the refraction of waves in figure 31.2 will now be shown as the equivalent refraction of rays in figure 31.3. The dashed line in figure 31.3(a) is the direction that the incident ray wou ...
reviews - Advances in Clinical and Experimental Medicine
... sis, which predispose to rhegmatogenous retinal detachment. Some cases may be asymptomatic, but in others, symptoms of flashes, floaters, or loss of peripheral field of vision may occur. Argon laser photocoagulation creates a thermal burn around the lesion, causing adhesion between the retina and re ...
... sis, which predispose to rhegmatogenous retinal detachment. Some cases may be asymptomatic, but in others, symptoms of flashes, floaters, or loss of peripheral field of vision may occur. Argon laser photocoagulation creates a thermal burn around the lesion, causing adhesion between the retina and re ...
VSII Final 2008-Smith section
... 27. Which of the following statements concerning the operational properties of the visiondependent mechanisms that regulate refractive development is correct? a. Peripheral vision does not normally influence foveal refractive development. b. Early in life, a functioning fovea is essential for the re ...
... 27. Which of the following statements concerning the operational properties of the visiondependent mechanisms that regulate refractive development is correct? a. Peripheral vision does not normally influence foveal refractive development. b. Early in life, a functioning fovea is essential for the re ...
Two-year follow-up of conductive keratoplasty for the treatment of
... No patient enrolled in the study had an existing or chronic ocular or systemic disease; a history of ocular surgery or trauma; steroid-responsive increase in intraocular pressure; or unstable, progressive hyperopia. Soft contact lens users (there were no hard contact lens wearers in this study) were ...
... No patient enrolled in the study had an existing or chronic ocular or systemic disease; a history of ocular surgery or trauma; steroid-responsive increase in intraocular pressure; or unstable, progressive hyperopia. Soft contact lens users (there were no hard contact lens wearers in this study) were ...
Full PDF
... solution kept in the dark absorbs more than that exposed to sun light for any particular ray. This is understandable because the one kept in the sun light has already been saturated with the rays (which are present in the sunlight) and so should absorb less from the spectrophotometer absorption valu ...
... solution kept in the dark absorbs more than that exposed to sun light for any particular ray. This is understandable because the one kept in the sun light has already been saturated with the rays (which are present in the sunlight) and so should absorb less from the spectrophotometer absorption valu ...
Recent Developments in Optofluidic Lens Technology
... as a powerful tool for manipulating the liquid–liquid interface [7–11]. The phenomenon has been explored to produce liquid lenses with various morphological configurations. Berge et al. [7] employed EW for the first time to produce spherical lenses of varying focal lengths by altering the contact an ...
... as a powerful tool for manipulating the liquid–liquid interface [7–11]. The phenomenon has been explored to produce liquid lenses with various morphological configurations. Berge et al. [7] employed EW for the first time to produce spherical lenses of varying focal lengths by altering the contact an ...
THE EYE - Prabha Eye Clinic
... A non-penetrating erosion or open sore in the outer layer of the cornea, the transparent area at the front of the eyeball. See also corneal injury. Causes, incidence, and risk factors Corneal ulcers are most commonly caused by an infection with bacteria, viruses, fungi or amoebae. Other causes are a ...
... A non-penetrating erosion or open sore in the outer layer of the cornea, the transparent area at the front of the eyeball. See also corneal injury. Causes, incidence, and risk factors Corneal ulcers are most commonly caused by an infection with bacteria, viruses, fungi or amoebae. Other causes are a ...
Cataract
![](https://commons.wikimedia.org/wiki/Special:FilePath/Cataract_in_human_eye.png?width=300)
A cataract is a clouding of the lens in the eye leading to a decrease in vision. It can affect one or both eyes. Often it develops slowly. Symptoms may include faded colors, blurry vision, halos around light, trouble with bright lights, and trouble seeing at night. This may result in trouble driving, reading, or recognizing faces. Poor vision may also result in an increased risk of falling and depression. Cataracts are the cause of half of blindness and 33% of visual impairment worldwide.Cataracts are most commonly due to aging, but may also occur due to trauma, radiation exposure, be present from birth, or occur following eye surgery for other problems. Risk factors include diabetes, smoking tobacco, prolonged exposure to sunlight, and alcohol. Either clumps of protein or yellow-brown pigment may be deposited in the lens reducing the transmission of light to the retina at the back of the eye. Diagnosis is by an eye examination.Prevention includes wearing sunglasses and not smoking. Early on the symptoms may be improved with eyeglasses. If this does not help, surgery to remove the cloudy lens and replace it with an artificial lens is the only effective treatment. Surgery is only needed if the cataracts are causing problems. Surgery generally results in an improved quality of life. Cataract surgery is not easily available in many countries, which is especially true of women.About 20 million people globally are blind due to cataracts. It is the cause of about 5% of blindness in the United States and nearly 60% of blindness in parts of Africa and South America. Blindness from cataracts occurs in about 10 to 40 per 100,000 children in the developing world and 1 to 4 per 100,000 children in the developed world. Cataracts become more common with age. About half the people in the United States have had cataracts by the age of 80.