Retinally-induced aniseikonia
... 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 fovea, it speaks to reason that this would have little effect on the receptor distribution far ...
... 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 fovea, it speaks to reason that this would have little effect on the receptor distribution far ...
newer avenues in management of nystagmus
... OPTICAL METHODS • More useful in Acquired Nystagmus of Neurological type. • It Stabilises the image on the retina through high convex specs coupled with high negative power CL ( RGP, PMMA). ...
... OPTICAL METHODS • More useful in Acquired Nystagmus of Neurological type. • It Stabilises the image on the retina through high convex specs coupled with high negative power CL ( RGP, PMMA). ...
Meibomian Gland Dysfunction
... with the increase in elective refractive corneal-based surgery, numerous articles have been published on ocular surface disorders. The most common overlap in terminology recently has been that between MGD and posterior blepharitis.8,11,30,32-35 It is critical that optometrists and other eye care pro ...
... with the increase in elective refractive corneal-based surgery, numerous articles have been published on ocular surface disorders. The most common overlap in terminology recently has been that between MGD and posterior blepharitis.8,11,30,32-35 It is critical that optometrists and other eye care pro ...
Corneal Crosslinking with Riboflavin and
... sciences to express the formation of chemical bridges after chemical reactions between proteins or other molecules. The crosslinks can be formed by chemical reactions that are initiated by heat, pressure, or radiation. The result of such reactions is change to the physical properties of the crosslin ...
... sciences to express the formation of chemical bridges after chemical reactions between proteins or other molecules. The crosslinks can be formed by chemical reactions that are initiated by heat, pressure, or radiation. The result of such reactions is change to the physical properties of the crosslin ...
Mature Bone in the Eye: A Case of Choroidal Osteoma
... presentation from mild to severe blurring of vision with metamorphopsia and/or significant visual field defects. Anterior segment exam is normal.1,5-7 Although it presented more commonly (75%) as a unilateral lesion, cases of bilateral choroidal osteoma have been described. It is always located peri ...
... presentation from mild to severe blurring of vision with metamorphopsia and/or significant visual field defects. Anterior segment exam is normal.1,5-7 Although it presented more commonly (75%) as a unilateral lesion, cases of bilateral choroidal osteoma have been described. It is always located peri ...
EMIL WILLIAM CHYNN, MD - Park Avenue SafeSight
... Chynn, EW. Preoperative predictors of flap thickness assessed. Ophthalmology Times. 25(2): 28, 2000. Chynn, EW, Fastenberg B. Patient presents with pain, proptosis, limited mobility. Ophthalmology Times. 25(1): 1213, 1999. Chynn, EW. Reliability of preoperative residual stromal thickness calculation ...
... Chynn, EW. Preoperative predictors of flap thickness assessed. Ophthalmology Times. 25(2): 28, 2000. Chynn, EW, Fastenberg B. Patient presents with pain, proptosis, limited mobility. Ophthalmology Times. 25(1): 1213, 1999. Chynn, EW. Reliability of preoperative residual stromal thickness calculation ...
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 ...
AQUEOUS HUMOR DYNAMICS AND THE PATHOGENESIS OF
... Because the interstitial spaces of the anterior uvea communicate with the inter-trabecular tissues of the posterior uveal trabecular meshwork aqueous aqueous can percolate through the ciliary body interstitium between the longitudinal muscle fibers of the ciliary body to the supra-ciliary and supra- ...
... Because the interstitial spaces of the anterior uvea communicate with the inter-trabecular tissues of the posterior uveal trabecular meshwork aqueous aqueous can percolate through the ciliary body interstitium between the longitudinal muscle fibers of the ciliary body to the supra-ciliary and supra- ...
Corneal collagen cross-linking effects on pseudophakic bullous
... corneas remained thinner than before the procedure. In an attempt to overcome the limitations imposed by increased corneal thickness in patients with bullous keratopathy, modifications in the surgical technique have been proposed to maintain reproducible and efficient UVA light riboflavin penetratio ...
... corneas remained thinner than before the procedure. In an attempt to overcome the limitations imposed by increased corneal thickness in patients with bullous keratopathy, modifications in the surgical technique have been proposed to maintain reproducible and efficient UVA light riboflavin penetratio ...
Eye Strain - Prevent, avoid, reduce, relieve, treat, and cure eye pain
... http://eyestrain.sabhlokcity.com/pics/Sabhlok-The-Eye-Strain-Book.doc ...
... http://eyestrain.sabhlokcity.com/pics/Sabhlok-The-Eye-Strain-Book.doc ...
Corneal Desiccation in Rigid Gas Permeable Contact Lens Wear
... gas permeable lenses.23-25 Soft lenses do not correct these aberrations since they follow the shape of the anterior ocular surface almost entirely. Laser refractive surgery actually induces large amounts of higher order aberrations (in particular spherical aberration when correcting myopia) due to t ...
... gas permeable lenses.23-25 Soft lenses do not correct these aberrations since they follow the shape of the anterior ocular surface almost entirely. Laser refractive surgery actually induces large amounts of higher order aberrations (in particular spherical aberration when correcting myopia) due to t ...
Injection of chemoattractants into normal cornea: a model of
... Intrastromal Injections Intrastromal injection of HBSS or of any of the chemoattractants resulted in the immediate development of a circular, opaque cloudiness in the cornea, approximately 10 mm in diameter, which was probably the consequence of fluid distortion of the lamellar orientation of the co ...
... Intrastromal Injections Intrastromal injection of HBSS or of any of the chemoattractants resulted in the immediate development of a circular, opaque cloudiness in the cornea, approximately 10 mm in diameter, which was probably the consequence of fluid distortion of the lamellar orientation of the co ...
Coloboma - Health Learning Center
... How can uveal coloboma be inherited? Isolated coloboma can follow all possible patterns of single gene inheritance, namely autosomal dominant, autosomal recessive and X-linked. For more information on inheritance patterns, please visit the National Library of Medicine’s Genetics Home Reference (htt ...
... How can uveal coloboma be inherited? Isolated coloboma can follow all possible patterns of single gene inheritance, namely autosomal dominant, autosomal recessive and X-linked. For more information on inheritance patterns, please visit the National Library of Medicine’s Genetics Home Reference (htt ...
Surgical treatment of cherry eye
... lateral edge, and exit at the lateral aspect of the free margin (C). Loop the suture around to re-enter the third eyelid at the bulbar side, and run the suture through the third eyelid tissue along the free margin to exit at the medial aspect (D). Again, loop around to reenter the tissue at the medi ...
... lateral edge, and exit at the lateral aspect of the free margin (C). Loop the suture around to re-enter the third eyelid at the bulbar side, and run the suture through the third eyelid tissue along the free margin to exit at the medial aspect (D). Again, loop around to reenter the tissue at the medi ...
Astigmatism
... For older adults, the average rate of change towards ATR astigmatism is less than or equal to 0.25D every 10 years ...
... For older adults, the average rate of change towards ATR astigmatism is less than or equal to 0.25D every 10 years ...
Myopic versus hyperopic eyes: axial length, corneal shape and
... The differences across studies may be due to several reasons: different age groups, refractive error ranges, and populations and ethnicities, differences in the statistical power of the studies, and differences across methods of measurement of CR, Q, and aberrations. Also, these studies correlate ei ...
... The differences across studies may be due to several reasons: different age groups, refractive error ranges, and populations and ethnicities, differences in the statistical power of the studies, and differences across methods of measurement of CR, Q, and aberrations. Also, these studies correlate ei ...
Fuchs` Uveitis and Posner-Schlossman Syndrome
... The degree of vitreous involvement may vary from the presence of a few cells to an infiltration with dense vitreous fibrous strands and condensations which may explain an erroneous diagnosis such as intermediate or posterior uveitis. In rare cases the heavily infiltrated vitreous may be at the origi ...
... The degree of vitreous involvement may vary from the presence of a few cells to an infiltration with dense vitreous fibrous strands and condensations which may explain an erroneous diagnosis such as intermediate or posterior uveitis. In rare cases the heavily infiltrated vitreous may be at the origi ...
Ultrasound Biomicroscopy in Glaucoma: An Update
... and effect of YAG iridectomy on anterior segment structures and IOP. The results show that irido-zonular contact does not exist in every patient with pigmentary glaucoma. Therefore, it seems possible that more than one pathogenic mechanism is involved in pigmentary glaucoma. Only in patients with ir ...
... and effect of YAG iridectomy on anterior segment structures and IOP. The results show that irido-zonular contact does not exist in every patient with pigmentary glaucoma. Therefore, it seems possible that more than one pathogenic mechanism is involved in pigmentary glaucoma. Only in patients with ir ...
Ocular Disorders Presumed to be Inherited in Purebred Dogs
... What is the purpose of this book? The Orthopedic Foundation for Animals (OFA), Canine Eye Registration Foundation (CERF), other breed registry groups, breed clubs, and practicing veterinarians have requested that the American College of Veterinary Ophthalmologists (ACVO) provide a scientific advisor ...
... What is the purpose of this book? The Orthopedic Foundation for Animals (OFA), Canine Eye Registration Foundation (CERF), other breed registry groups, breed clubs, and practicing veterinarians have requested that the American College of Veterinary Ophthalmologists (ACVO) provide a scientific advisor ...
4-(164-168) 15-이종미
... corneal aberration and ocular aberration were measured by Pentacam and an aberrometer (LADARWave ) respectively. Changes of root mean square (RMS) values of coma, spherical aberration, and total high order aberration (HOA) were evaluated before, 1 month, and 3 months after surgery Results: Ocular ab ...
... corneal aberration and ocular aberration were measured by Pentacam and an aberrometer (LADARWave ) respectively. Changes of root mean square (RMS) values of coma, spherical aberration, and total high order aberration (HOA) were evaluated before, 1 month, and 3 months after surgery Results: Ocular ab ...
Progressive myopia: an update
... higher myopia. For every book read per week the AL elongation was more by 0.04 mm. However, several other studies failed to find any significant correlation between near work and myopia ...
... higher myopia. For every book read per week the AL elongation was more by 0.04 mm. However, several other studies failed to find any significant correlation between near work and myopia ...
Comparative study of intraoperative mitomycin C
... and complication after surgery for primary pterygium performed by one surgeon using either intraoperative mitomycin C or â irradiation. Methods—A retrospective study was performed of 164 eyes in 164 patients who had undergone primary pterygium surgery. After the pterygium was excised, the bare scler ...
... and complication after surgery for primary pterygium performed by one surgeon using either intraoperative mitomycin C or â irradiation. Methods—A retrospective study was performed of 164 eyes in 164 patients who had undergone primary pterygium surgery. After the pterygium was excised, the bare scler ...
Ocular Disorders Presumed to be Inherited in PureBred Dogs
... What is the purpose of this book? The Orthopedic Foundation for Animals (OFA), Canine Eye Registration Foundation (CERF), other breed registry groups, breed clubs, and practicing veterinarians have requested that the American College of Veterinary Ophthalmologists (ACVO) provide a scientific advisor ...
... What is the purpose of this book? The Orthopedic Foundation for Animals (OFA), Canine Eye Registration Foundation (CERF), other breed registry groups, breed clubs, and practicing veterinarians have requested that the American College of Veterinary Ophthalmologists (ACVO) provide a scientific advisor ...
this PDF file
... The pupillary light reflex in CRVO has significant diagnostic and prognostic value. It is non-invasive and objective and provides reliable information even in cases with hazy media and extensive retinal hemorrhages. Presence of relative afferent pupillary defect is a reliable marker for CRVO, with a ...
... The pupillary light reflex in CRVO has significant diagnostic and prognostic value. It is non-invasive and objective and provides reliable information even in cases with hazy media and extensive retinal hemorrhages. Presence of relative afferent pupillary defect is a reliable marker for CRVO, with a ...
Cataract
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.