Search Results - "Twa, MD"

Estimation of pupil size by digital photography by Twa, Michael D, Bailey, Melissa D, Hayes, John, Bullimore, Mark

“…To evaluate a digital photography method of pupil size estimation over a broad range of illumination conditions and to compare this method with common clinical…”
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Surgically induced astigmatism after implantation of intacs intrastromal corneal ring segments by Twa, M D, Ruckhofer, J, Shanzlin, D J

“…To analyze surgically induced astigmatism (SIA) after implantation of Intacs intrastromal corneal ring segments. Multicenter clinical trials in the United…”
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Noncontact measurement of elasticity for the detection of soft-tissue tumors using phase-sensitive optical coherence tomography combined with a focused air-puff system by Wang, Shang, Li, Jiasong, Manapuram, Ravi Kiran, Menodiado, Floredes M, Ingram, Davis R, Twa, Michael D, Lazar, Alexander J, Lev, Dina C, Pollock, Raphael E, Larin, Kirill V

“…We report on an optical noncontact method for the detection of soft-tissue tumors based on the measurement of their elasticity. A focused air-puff system is…”
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Automated decision tree classification of corneal shape by TWA, Michael D, PARTHASARATHY, Srinivasan, ROBERTS, Cynthia, MAHMOUD, Ashraf M, RAASCH, Thomas W, BULLIMORE, Mark A

“…The volume and complexity of data produced during videokeratography examinations present a challenge of interpretation. As a consequence, results are often…”
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Twenty-Four-Hour Pattern of Intraocular Pressure in the Aging Population by Liu, John H. K, Kripke, Daniel F, Twa, Michael D, Hoffman, Rivak E, Mansberger, Steven L, Rex, Katharine M, Girkin, Christopher A, Weinreb, Robert N

“…To characterize the 24-hour pattern of intraocular pressure (IOP) in a sample of the aging human population. Twenty-one healthy volunteers 50 to 69 years of…”
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Nocturnal elevation of intraocular pressure in young adults by Liu, JH, Kripke, DF, Hoffman, RE, Twa, MD, Loving, RT, Rex, KM, Gupta, N, Weinreb, RN

“…To distinguish 24-hour (circadian) and postural effects on intraocular pressure (IOP) in healthy young adults. Thirty-three volunteers were housed in a sleep…”
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Characteristics of Corneal Ectasia After LASIK for Myopia by Twa, Michael D, Nichols, Jason J, Joslin, Charlotte E, Kollbaum, Pete S, Edrington, Timothy B, Bullimore, Mark A, Mitchell, G Lynn, Cruickshanks, Karen J, Schanzlin, David J

“…PURPOSE:There are numerous reports of corneal ectasia after laser in situ keratomileusis (LASIK) for myopia without a consistent definition of this condition…”
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Sensitivity of the National Eye Institute Refractive Error Quality of Life instrument to refractive surgery outcomes by Nichols, Jason J, Twa, Michael D, Mitchell, G Lynn

“…To evaluate scores from the National Eye Institute Refractive Error Quality of Life instrument (NEI-RQL) relative to refractive surgery outcomes in myopic…”
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Twenty-Four-Hour Pattern of Intraocular Pressure in Young Adults with Moderate to Severe Myopia by Liu, John H. K, Kripke, Daniel F, Twa, Michael D, Gokhale, Parag A, Jones, Eric I, Park, Eun-Ha, Meehan, John E, Weinreb, Robert N

“…To characterize the 24-hour change of intraocular pressure (IOP) in young adults with moderate to severe myopia. Nineteen young adults, ages 18 to 25 years,…”
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A Prospective Randomized Clinical Trial of Laser In Situ Keratomileusis With Two Different Lasers by Twa, Michael D., Lembach, Richard G., Bullimore, Mark A., Roberts, Cynthia

“…To compare optical quality, visual function, corneal shape, ocular wavefront aberrations, and patient-reported symptoms and satisfaction after laser in situ…”
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Correction of astigmatism with short arc-length intrastromal corneal ring segments: preliminary results by Ruckhofer, Josef, Stoiber, Josef, Twa, Michael D, Grabner, Günther

“…To evaluate the refractive effect of 130 degrees short arc length intrastromal corneal ring segments (ICRS) designed to correct myopia concurrent with…”
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Repeatability of autorefraction and axial length measurements after laser in situ keratomileusis by Bailey, Melissa D, Twa, Michael D, Mitchell, G Lynn, Dhaliwal, Deepinder K, Jones, Lisa A, McMahon, Timothy T

“…To assess the repeatability and agreement of refractive error measurements and the repeatability of axial length (AL) measurements in patients after laser in…”
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Histologic Evaluation of Corneal Stroma in Rabbits After Intrastromal Corneal Ring Implantation by Twa, Michael D, Ruckhofer, Josef, Kash, Roger L, Costello, Michael, Schanzlin, David J

“…PURPOSE.Previous refractive corneal implants have produced histologic changes characteristic of nonspecific lipid keratopathy. Intacs intrastromal corneal ring…”
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Clinical characteristics of lamellar channel deposits after implantation of intacs by Ruckhofer, J, Twa, M D, Schanzlin, D J

“…To report the frequency, location, and severity of biomicroscopically evident intrastromal deposits that may accumulate in the lamellar channel after…”
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Morphologic Characteristics of Lamellar Channel Deposits in the Human Eye: A Case Report by Twa, Michael D, Kash, Roger L, Costello, Michael, Schanzlin, David J

“…OBJECTIVE:To report the histologic characteristics of lamellar channel deposits after polymethyl methacrylate intrastromal corneal ring segments in a human…”
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Improved functional vision with a modified prolate IOL by Rosen, Peter N, Twa, Michael D

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Elevation of Human Intraocular Pressure at Night under Moderate Illumination by Liu, John H. K, Kripke, Daniel F, Hoffman, Rivak E, Twa, Michael D, Loving, Richard T, Rex, Katharine M, Lee, Brian L, Mansberger, Steven L, Weinreb, Robert N

“…An endogenous elevation of intraocular pressure (IOP) occurs at night in healthy young adults. The authors studied whether or not this IOP elevation can be…”
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Refractive change in response to acute hyperbaric stress in refractive surgery patients by Huang, Enoch T, Twa, Michael D, Schanzlin, David J, Van Hoesen, Karen B, Hill, MaryAnn, Langdorf, Mark I

“…To determine whether acute hyperbaric stress affects visual acuity or refractive power after keratorefractive surgery. Clinical multiplace hyperbaric chamber…”
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Diurnal stability of refraction after implantation with intracorneal ring segments by Twa, M D, Hurst, T J, Walker, J G, Waring, G O, Schanzlin, D J

“…To investigate diurnal changes in visual acuity and refraction in myopic eyes implanted with intracorneal ring segments (ICRS). University of California San…”
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