Optometry Commons^™

Alternative Therapies For Treatment Of Keratoconjunctivitis Sicca Associated With Sjogren's Syndrome, Brittney M. Brady Od, Faao, Michelle K. Man Od, Faao

Optometric Clinical Practice

Background: Sjogren’s syndrome is a chronic, systemic autoimmune disorder, which often results in significant ocular surface disease. Dry eye associated with Sjogren’s syndrome is a multifactorial disease which leads to decreased function of the lacrimal glands and altered tear composition. There currently are numerous anti-inflammatory methods used for treatment of this disease.

Case Report: This case report will focus on the use of amniotic membrane placement and autologous serum tears to facilitate a successful scleral contact lens fit allowing for reduced ocular inflammation and discomfort associated with Keratoconjunctivitis sicca due to Sjogren’s syndrome.

Conclusion: Clinical management of keratoconjunctivitis sicca due …

The Art Of Prescribing Low Amounts Of Prism, Leonard J. Press Od

Optometric Clinical Practice

Expanding the Box

Why Don't More Of Us Write Scholarly Papers?, Paul B. Freeman Od

Optometric Clinical Practice

Letter from the Editor-in-Chief

Investigation Of Surrogate Biomarkers Associated With Macular Pigment Status In A Group Of Older Irish Adults, Grainne Scanlon, John S. Butler, Daniel Mccartney, Ekaterina Lostutova, Rose Anne Kenny, James Loughman

Articles

SIGNIFICANCE: Macular pigment (MP) confers potent antioxidant and anti-inflammatory effects at the macula; however, its optical density in the eye is not routinely measured in clinical practice.

PURPOSE: This study explored a range of surrogate biomarkers including anthropometric, clinical, and plasma measures that may be associated with lower MP optical density (MPOD).

METHODS: Two thousand five hundred ninety-four subjects completed a full MP assessment as part of wave 1 of The Irish Longitudinal Study of Aging. Macular pigment optical density was measured using customized heterochromatic flicker photometry. Clinical (blood pressure), plasma (lipoproteins, inflammatory markers), and anthropometric (waist, hip, height, weight) …

Manejo De Detrito Con Hápticas Tóricas En Un Lente Escleral, Para Un Paciente Con Queratotomía Radial, Manuel Sánchez-Pérez, Sandra Paola Partido-Echeverría

Ciencia y Tecnología para la Salud Visual y Ocular

En la actualidad, una de las mejores maneras para rehabilitar visualmente a pacientes con importantes irregularidades corneales es con los lentes de contacto esclerales. No obstante, con ellos también se han presentado diversas complicaciones como la presencia de detrito entre el lente y la córnea. En el presente artículo se presenta un caso en el cual se dio este fenómeno y a través de ese se describirá su manejo mediante la modificación de la zona háptica, pruebas optométricas realizadas y el respectivo seguimiento. Se presenta el caso de una mujer de 53 años, posoperada de queratotomía radial por miopía alta; …

La Percepción Cromática Media La Respuesta A Estímulos Rojos, Verdes, Azules Y Amarillos En Niños De Escuela Primaria En México, Myrna Miriam Valera Mota, Jorge Bernal Hernández, Ilhuicamina Melina Ávila Lara, Enrique Jiménez Valencia, Mariana Guzmán Noriega

Ciencia y Tecnología para la Salud Visual y Ocular

Propósito: evaluamos las respuestas a estímulos (longitud de onda) de percepción cromática en el espectro visible en niños de una escuela primaria en el campo de Nezahualcoyotl, México. Materiales y métodos: se usó un software desarrollado ad hoc para medir cómo los niños perciben los colores azul, verde, amarillo y rojo. Las pruebas se hicieron de forma monocular y las respuestas fueron agrupadas con base en su semejanza según el índice de correlación de Pearson y el análisis de clúster por promedios no ponderados. Se aplicó una prueba chi-cuadrado a los grupos para ver las diferencias significativas. Resultados: los datos …

Manifestaciones Oculares Del Covid-19, Nancy Piedad Molina-Montoya

Ciencia y Tecnología para la Salud Visual y Ocular

No abstract provided.

Tratamientos Tópicos Oculares Para El Segmento Anterior Y Uso De Fármacos Diagnósticos En Población Pediátrica, Adriana Camila Gayón Muñoz, Nancy Piedad Molina-Montoya

Ciencia y Tecnología para la Salud Visual y Ocular

En los niños, la prescripción de medicamentos para el diagnóstico y tratamiento de patologías de segmento anterior representa un gran reto para los profesionales de la salud, debido a que se requiere de un amplio conocimiento sobre el momento de prescribirlos y de ofrecer tratamientos efectivos, con mínimo riesgo de generar efectos adversos. Este trabajo tuvo como propósito referenciar aspectos que se deben tener en cuenta en la formulación de medicamentos tópicos oculares, para el diagnóstico y tratamiento de patologías oculares de segmento anterior, en niños menores de 12 años. Para esto, se adelantó una búsqueda y revisión documental, en …

Efecto De Los Prismas Gemelos En La Atención, Postura Y Comportamiento En Niños Con Trastorno Del Espectro Autista (Tea), Elizabeth Casillas Casillas, Jaime Bernal Escalante, Sergio Ramírez González, Luis Héctor Salas Hernández, Raúl Arias Ulloa, José De Jesús Espinosa Galaviz, Luis Fernando Barba-Gallardo

Ciencia y Tecnología para la Salud Visual y Ocular

El trastorno del espectro autista (TEA) se caracteriza por una alteración generalizada del desarrollo cerebral, que afecta la socialización, comunicación, imaginación y reciprocidad emocional y se evidencia mediante conductas repetitivas e inusuales. El uso de prismas gemelos estimula una reorganización neurológica y provoca cambios en la percepción visual. El objetivo del presente artículo fue evaluar las habilidades visuales y determinar el efecto de los prismas gemelos en la atención, postura y comportamiento de los niños con TEA. Se elaboró un estudio de intervención con muestras pareadas antes-después; se incluyeron 20 niños con diagnóstico de TEA en edades de 4 a …

Etiología Y Factores Asociados A Fototoxicidad Retinal, Angélica María Cristancho Chaparro, Diana V. Rey-Rodríguez

Ciencia y Tecnología para la Salud Visual y Ocular

Los efectos nocivos de la radiación solar en la piel y en la superficie ocular se conocen claramente; sin embargo, los daños fotoquímicos en la retina aún son motivo de investigación. Se ha documentado que incluso el tiempo reducido, único o recurrente de exposición a la radicación puede inducir cambios histológicos que afectan la calidad de la visión, desde alteraciones transitorias hasta maculopatías irreversibles. Pese a esto, existe limitada información sobre la prevalencia e incidencia de los casos relacionados a exposición lumínica ambiental u ocupacional. Esta investigación tuvo propósito identificar la etiología y factores asociados a fototoxicidad retinal adquirida y …

Pterygium Recurrence And Corneal Stabilization Point After Pterygium Excision Using The Controlled Partial Avulsion Fibrin Glue Technique, Mohd Radzi Hilmi, Khairidzan Mohd Kamal, Mohd Zulfaezal Che Azemin

Makara Journal of Health Research

Background: This study aimed to evaluate the pterygium recurrence rate and corneal stabilization point after pterygium excision via the controlled partial avulsion fibrin glue technique using multiple corneal parameters.

Methods: One hundred eyes of 100 patients who had undergone primary pterygium excision surgery via the controlled partial avulsion fibrin glue technique were retrospectively reviewed. Corneal stabilization points were determined over four follow-up sessions (i.e., the 1st, 3rd, 6th, and 12th months after surgery) based on changes in Simulated-K, corneal irregularity measurement, shape factor, and toric mean keratometry. Post-operative courses were followed for 12 months after surgery. Recurrence was …

Access To Eye Care Before And After Vision Loss: A Qualitative Study Investigating Eye Care Among Persons Who Have Become Blind, Tosha Zaback, Stephanie Lam, Joan Randall, Teresa Field, Mitchell V. Brinks

The Qualitative Report

Navigating access to eye care requires that patients recognize the need for screening and care, employ limited financial and social resources, manage complex health insurance policies, and access specialty clinical care. We investigated the experience of patients through the progression of vision loss to blindness, utilizing qualitative methods. We conducted structured telephone interviews with 28 persons with blindness throughout Oregon. Utilizing closed and open-ended questions, we explored patient experience on the events preceding avoidable blindness. Coding for emergent themes was conducted independently by two researchers using a constant comparative method. Participants described important barriers to accessing eye care: at the …

A Comparison Of Emoji Characters To Picture Optotypes, Simran Brar

Research Days

No abstract provided.

Emergency Eye Simulation Model, Gavin L. Warrington, Christopher Forsyth, Lexus Morris, Natalie Ledezma

Chancellor’s Honors Program Projects

No abstract provided.

A Look Into The Impacts Of Tele-Optometry Expansion, Anna Hulsey

Honors Theses

Objective This study aims to assess the health and economic costs and benefits to society and patients resulting from the expansion of telemedicine into online refractive exams and to determine the likelihood of potential consumers to utilize such services. Methods A paper survey was distributed at the Inaugural Cempa Health Fair in October of 2019 to both vendors and participants. 105 responses were used to evaluate personal perceptions, practices, and likelihood across a diverse range of demographics. Responses were then entered and analyzed using descriptive statistics and percentages/frequencies. Results Results showed respondents were most attracted to online refractive exams due …

Determining Age-Related Visual Memory And Line Length Perception In Children And Adults, Katie Exline

Undergraduate Honors Thesis Projects

There is little research in the field of visual memory and perceptual abilities of children as compared to adults. This thesis seeks to understand and provide new perspectives to this field with potential implications in the fields of optometry and education. Through two basic experiments, this thesis evaluates the abilities of individuals to perceive a visual stimulus and compare it other visual stimuli, while also observing their abilities to learn and remember various visual stimuli. Through experimentation using line length as the visual stimulus, the method of constant stimuli (MCS) evaluates subjects’ visual perception and the method of single stimuli …

Transitioning From Episodic To Sustained Care In Humanitarian Service, W Howard Mcalister Od, Ma, Mph, Jeffrey L. Weaver Od, Ms, Timothy A. Wingert Od, Kristen Kramlich Od

Optometric Clinical Practice

Background: Humanitarian missions serve populations needing care and usually provide short term interventions. Traditionally, care provided through humanitarian agencies like VOSH International has been episodic, consisting of a short-term mission placing a team in country for several days. There have been discussions that episodic care is a short term measure which impedes the systematic development of a long term solution to providing the necessary health care. The move toward sustained care is a step in the direction of improving the public health in developing countries.

Method: A survey instrument was mailed to the 26 VOSH chapters in the United States …

A Vision- And Life-Threatening Case Of Peripheral Ulcerative Keratitis, Len V. Koh Od, Megan E. Mcchesney Md, Chad E. Gosnell Od, Ryan N. Ngo Od

Optometric Clinical Practice

Background: Peripheral ulcerative keratitis (PUK) is a rare but severe ocular manifestation most commonly associated with rheumatoid arthritis amongst other autoimmune diseases. Quick diagnosis and co-management with corneal specialist and rheumatologist are crucial to preserve vision and life. A rare case of PUK associated with rheumatoid arthritis (RA) is presented with updates on current understanding and co-management of this condition.

Case Report: A 76 year-old Caucasian male presented to the eye clinic on a Friday as a new patient, with a chief complaint of a red right eye started two weeks ago and was treated with erythromycin ointment, but it …

Silent Sinus Syndrome: An Uncommon Cause Of Diplopia, Tyler V. Mullen Od, Ruth Hyatt Od, Faao, Diplomate, Darcy Eberle Od

Optometric Clinical Practice

Background: Silent sinus syndrome is a rare condition with multiple ophthalmic findings of significance. Chronic, subclinical maxillary sinus inflammation alters the pressure gradient, leading to eventual maxillary sinus collapse, orbital floor depression, enophthalmos, and diplopia.

Case Report: Functional endoscopic sinus surgery may be indicated to correct diplopia and/or cosmesis.

Conclusion: Patients unbothered by facial asymmetry may be managed with prism in eyeglasses.

Case Series: Discordance Between Visible Retinal Nerve Fiber Layer Defects And Spectral Domain Optical Coherence Tomographic Analysis In Patients With Glaucoma, Joseph Sowka Od, Leticia Rousso Od

Optometric Clinical Practice

Background: Spectral domain optical coherence tomography (SD-OCT) has become a common modality in glaucoma diagnosis. Ease of use, comfort, and a comparative normative database makes this technology very popular with patients and practitioners. However, despite the sophistication of this technology, it may miss pathologic abnormalities of the retinal nerve fiber layer (RNFL) or be misinterpreted by practitioners based upon comparisons to a normative database.

Purpose: To illustrate discordance between clinical examination and SD-OCT analysis in patients with glaucoma.

Case Reports: Examples of three patients with glaucoma who had photographically and ophthalmoscopically visible RNFL defects who had SD-OCT analyses that fell …