• Ophthalmology
  • Peyman completed his residency in ophthalmology and a retina fellowship at the University of Essen, Essen Germany, in 1969 and an additional postdoctoral fellowship in retina at the Jules Stein Eye Institute, UCLA School of Medicine in Los Angeles in 1971. (wikipedia.org)
  • Peyman held the position of assistant professor of ophthalmology at the UCLA School of Medicine from 1971 and served as associate professor and then professor of ophthalmology at the Illinois Eye and Ear Infirmary, University of Illinois at Chicago during 1971-1987. (wikipedia.org)
  • keratitis
  • When a keratitis is unresponsive to treatment and associated with strong ocular pain, topical anesthetic abuse should be considered, and a history of psychiatric disorders and other substance abuse have been implicated as important factors in the diagnosis. (wikipedia.org)
  • intra
  • In 1 case out of 10, a sudden blockage impairs elimination of this liquid and intra-ocular pressure rises quickly. (groupeproxim.ca)
  • In some cases, surgery can be performed: The canal is widened to allow more aqueous humor to be eliminated and intra-ocular pressure to decrease. (groupeproxim.ca)
  • Certain cold or allergy products, for example, can cause complete closure of the elimination canal, resulting in a sharp increase in intra-ocular pressure. (groupeproxim.ca)
  • Your eye care professional can measure the intra ocular pressure through a test called tonometry. (drmcniemandt.co.za)
  • The balance between the flow of air from the machine and the resistance to flow from the cornea affect the movement of the piston and this movement is used to calculate the intra-ocular pressure. (wikipedia.org)
  • Peyman is a member of National Academy of Inventors and has, thus far, been granted 174 US Patents covering a broad range of novel medical devices, intra-ocular drug delivery, surgical techniques, as well as new methods of diagnosis and treatment. (wikipedia.org)
  • topical anesthetic
  • Because the probe makes contact with the cornea, a topical anesthetic, such as proxymetacaine, is introduced on to the surface of the eye in the form of an eye drop. (wikipedia.org)
  • Because the device touches the cornea, topical anesthetic eye drops are used to numb the eye but as with non-contact tonometry, these devices are often used in children and non-cooperative patients because of their portability and ease of use. (wikipedia.org)
  • The deeper and the larger a foreign object which should be removed lies within the cornea and the more complicated it is to remove it, the more drops of topical anesthetic are necessary prior to the removal of the foreign object to numb the surface of the eye with enough intensity and duration. (wikipedia.org)
  • examination
  • During examination the dosed IOP increase (by 10 mm Hg) was achieved by special small sucker cap applied to the eye and connected to vacuum compressor with a tube. (escrs.org)
  • An eye examination is a series of tests performed by an ophthalmologist (medical doctor), optometrist, or orthoptist assessing vision and ability to focus on and discern objects, as well as other tests and examinations pertaining to the eyes. (wikipedia.org)
  • A minimal eye examination consists of tests for visual acuity, pupil function, and extraocular muscle motility, as well as direct ophthalmoscopy through an undilated pupil. (wikipedia.org)
  • Diagnosis is by a dilated eye examination. (wikipedia.org)
  • drops
  • CCT as measured with Pachmate DGH 55 of 28 patients with recurrent/chronic unilateral anterior uveitis treated with corticosteroid drops(1% Prednisolone or 0.1% Dexamethasone or 0.1% Betamethasone) was compared with other unaffected and untreated eye. (arvojournals.org)
  • Mean CCT of eyes treated with long term steroid drops were 528± 38µ as compared to 542±27µ in normal eyes. (arvojournals.org)
  • Patients will be randomized and will receive the same eye drops the Thymosin Beta 4. (clinicaltrials.gov)
  • While glaucoma's damage can't be reversed, the condition's progress can frequently be controlled through medications in the form of eye drops and oral drugs. (yakimavision.com)
  • It is portable, does not require the use of eye drops and is particularly suitable for children and non-cooperative patients. (wikipedia.org)
  • patients
  • I will also consider the occasional need for and use of advanced diagnostic technology that might be available for patients referred to academic medical centers, such as ultrasound biomicroscopy (UBM) and anterior segment ocular coherence tomography (AS-OCT). (springer.com)
  • Tear substitutes are an important part of the treatment of all patients, however, even with aggressive us, the corneal(ocular)surface often remains very irregular due to poor surface healing. (clinicaltrials.gov)
  • Enhancing patients' lives with world-class eye care and friendly, trustworthy service. (yakimavision.com)
  • Argon laser trabeculoplasty has successfully lowered eye pressure in up to 75 percent of patients treated. (drmcniemandt.co.za)
  • fluid
  • The eye is constantly creating a fluid called the aqueous humor, draining the excess off through a drainage system in the iris. (yakimavision.com)
  • The flow tube is inserted into the anterior chamber of the eye and the plate is implanted underneath the conjunctiva to allow flow of aqueous fluid out of the eye into a chamber called a bleb. (wikipedia.org)
  • tonometer
  • The air-puff tonometer, which does not touch the eye, records deflections of the cornea from a puff of pressurized air. (thefreedictionary.com)
  • Armand Imbert (1850-1922) and Adolf Fick (1829-1901) have both demonstrated, independently of each other, that in ocular tonometry the tension of the wall can be "eliminated when the application of the tonometer produces a flat surface instead of a concave one, and the reading of the tonometer (P) then equals (T) the IOP," whence all forces cancel each other. (wikipedia.org)
  • cornea
  • Disorders that cause eye pain can be divided into those that affect primarily the cornea, other ocular disorders, and disorders that cause pain referred to the eye (see Some Causes of Eye Pain ). (merckmanuals.com)
  • For each dog, corneal stiffening was induced in one eye with glutaraldehyde/phosphate buffered saline (PBS) immersion while the other cornea was immersed in PBS only. (arvojournals.org)
  • At this point the opposing forces of corneal rigidity and the tear film are roughly approximate in a normal cornea and cancel each other out allowing the pressure in the eye to be inferred from the force applied. (wikipedia.org)
  • instillation
  • It is composed of the same excipients as RGN-259 but does not contain Tβ4 for direct instillation into each eye, six times daily for 28 days. (clinicaltrials.gov)
  • Non-infectious endophthalmitis was defined as pseudohypopyon/hypopyon with or without an inflammatory reaction that regressed after steroid eye drop instillation. (bmj.com)
  • surgery
  • His most widely known invention to date is LASIK eye surgery, a vision correction procedure designed to allow people to see clearly without glasses. (wikipedia.org)
  • Endophthalmitis
  • Non-infectious endophthalmitis developed in 12 eyes (1.9%) and varied significantly in both groups (p = 0.005). (bmj.com)
  • diseases
  • Health care professionals often recommend that all people should have periodic and thorough eye examinations as part of routine primary care, especially since many eye diseases are asymptomatic. (wikipedia.org)
  • Eye examinations may detect potentially treatable blinding eye diseases, ocular manifestations of systemic disease, or signs of tumours or other anomalies of the brain. (wikipedia.org)
  • Secondary glaucomas occur when other eye diseases alter the flow of aqueous humor either into or out of the eye. (wikipedia.org)
  • abnormality
  • Refractive error is an optical abnormality in which the shape of the eye fails to bring light into sharp focus on the retina, resulting in blurred or distorted vision. (wikipedia.org)
  • pressure
  • During this time, elevated pressure causes damage to the eye and causes visual disturbances. (groupeproxim.ca)
  • Tonometry testing, using a special device, is performed to measure the eyes' internal pressure. (groupeproxim.ca)
  • When an area of 3.06 mm (0.120 in) has been flattened, the opposing forces of corneal rigidity and the tear film are roughly approximate and cancel each other out allowing the pressure in the eye to be determined from the force applied. (wikipedia.org)
  • However, some may have high eye pressure for years and never develop damage. (wikipedia.org)
  • The goal of these treatments is to decrease eye pressure. (wikipedia.org)
  • visual acuity
  • The investigators hope to be able to demonstrate an improvement in visual acuity, surface healing and a reduction in dry-eye related symptoms. (clinicaltrials.gov)
  • baseline
  • It has now been demonstrated that OSAS per se is able to generate hypertension, atherosclerosis and autonomic dysfunction (high sympathic tone and increase in baseline heart rate), all conditions possibly interacting with ocular vascular regulation. (clinicaltrials.gov)
  • aqueous humor
  • The eye contains aqueous humor, a liquid that provides it with support and energy. (groupeproxim.ca)
  • This is achieved by reducing aqueous humor production, or by improving drainage of aqueous humor from the eye. (wikipedia.org)
  • Severe
  • The sudden presentation may involve severe eye pain, blurred vision, mid-dilated pupil, redness of the eye, and nausea. (wikipedia.org)
  • citation needed] When used excessively, topical anesthetics can cause severe and irreversible damage to corneal tissues and even loss of the eye. (wikipedia.org)
  • hypothesis
  • The study hypothesis is that Thymosin Beta 4, in its role as a modulator of corneal surface healing, may be able to promote healing of the corneal surface allowing for more conventional modalities to take over and maintain a smooth and regular ocular surface. (clinicaltrials.gov)
  • Our hypothesis is that the eye microvasculature is affected by OSAS, and these lesions may be detected via a reduced autoregulation of blood flow in humans. (clinicaltrials.gov)
  • thus
  • Thus contact tonometry equipment is not disinfected sufficiently to kill sCJD. (sciencedomain.org)
  • Since he had purchased an Erb-Yag laser in the U.S., he evaluated the concept using this laser in vivo in rabbit and primate eyes and described the creation of a hinged corneal flap to enable the ablation to be performed on the exposed corneal bed, thus reducing the potential for postoperative scarring and pain. (wikipedia.org)
  • care
  • Everything I describe or recommend here should be well within the current or attainable skill sets of most eye care physicians and the facilities of average office environments. (springer.com)
  • Tonometry is the method eye care professionals use to determine this. (wikipedia.org)
  • The eye care professional will change lenses and other settings while asking the patient for feedback on which set of lenses give the best vision. (wikipedia.org)
  • A patent was filed for the system in 2010, and the primary audience for the device was projected to be the developing world where access to eye care professionals is limited. (wikipedia.org)
  • Sometimes, eye care professionals prefer to obtain a cycloplegic refraction, especially when trying to obtain an accurate refraction in young children who may skew refraction measurements by adjusting their eyes with accommodation. (wikipedia.org)
  • steroid
  • A retrospective review was conducted of 646 intravitreal 4 mg/0.1 ml steroid injections in 471 eyes. (bmj.com)
  • mmHg
  • For eye pressures a value of greater than 21 mmHg or 2.8 kPa is often used with higher pressures leading to a greater risk. (wikipedia.org)
  • trauma
  • This is significant for example if the patient requires anaesthesia for a trauma and has sustained an eye (globe) perforation. (wikipedia.org)