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Contrast sensitivity evaluation with filter contact lenses in patients with retinitis pigmentosa: a pilot study

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2011-10
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Spanish General Council of Optometrists
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Purpose: the aim of this pilot study was to test whether retinitis pigmentosa patients would benefit from filter contact lenses as an effective optical aid against glare and photophobia. Methods: fifteen subjects with retinitis pigmentosa were enrolled in this study. All of them were evaluated with filter soft contact lenses (MaxSight), filter glasses (CPF 527) and without filters (control). All patients were assessed for the three aid conditions by means of best corrected visual acuity (BCVA), contrast sensitivity (without glare and with central and peripheral glare)(CSV-1000) and a specific subjective questionnaire about quality of vision. Results: BCVA was slightly better with filters than without filter but the differences were not statistically significant. Contrast sensitivity without glare improved significantly with the contact lenses (p<0.05). The central glare had significant differences for the frequencies of 3 cpd and 18 cpd between the contact lens filter and the control group (p=0.021 and p=0.044, respectively). For the peripheral glare contrast sensitivity improved with contact lens versus control group for highest frequencies, 12 and 18 cpd (p<0.001 and p=0.045, respectively). According to the questionnaire the contact lens filter gave them more visual comfort than the glasses filter under the scenarios of indoors glare, outdoors activities and indoors comfort. Conclusion: the filter contact lenses seem to be a good option to improve the quality of vision of patients with retinitis pigmentosa.
Objetivo: el objetivo de este estudio preliminar fue comprobar si los pacientes con retinitis pigmentosa se beneficiarían de lentes de contacto con filtro como ayuda óptica eficaz contra el deslumbramiento y la fotofobia. Métodos: en este estudio se incluyeron 15 sujetos con retinitis pigmentosa. Todos fueron evaluados con lentes de contacto blandas con filtro (MaxSight), gafas con filtro (CPF 527) y sin filtro (control). En todos los pacientes se evaluaron los tres medios de apoyo basándose en la agudeza visual con mejor compensación (AVMC), la sensibilidad al contraste (sin deslumbramiento y con des lumbramiento central y periférico) (CSV-1000) y un cuestionario subjetivo específico sobre la calidad de la visión. Resultados: la AVMC fue ligeramente mejor con filtro que sin filtro, aunque las diferencias no fueron estadísticamente significativas. La sensibilidad al contraste sin deslumbramiento mejoró de manera significativa con las lentes de contacto (p<0,05). El deslumbramiento central presentó diferencias significativas para las frecuencias de 3 cpd y 18 cpd entre las lentes de contacto con filtro y el grupo de control (p=0,021 y p=0,044, respectivamente). En cuanto al deslumbramiento periférico, la sensibilidad al contraste mejoró con las lentes de contacto frente al grupo de control para las frecuencias más altas, 12 y 18 cpd (p<0,001 y p=0,045, respectivamente). Según el cuestionario, las lentes de contacto con filtro les proporcionaron más confort visual que las gafas con filtro para situaciones de deslumbramientos en interiores, actividades al aire libre y confort en interiores. Conclusiones: las lentes de contacto con filtro parecen una buena opción para mejorar la calidad de la visión de los pacientes con retinitis pigmentosa.
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1. R.S. Young,G.A. Fishman Color matches of patients with retinitis pigmentosa Invest Ophthalmol Vis Sci, 19 (1980), pp. 967-972. 2. K. Shintani,D.L. Shechtman,A.S. Gurwood Review and update: current treatment trends for patients with retinitis pigmentosa Optometry, 80 (2009), pp. 384-401 3. P. Herse Retinitis pigmentosa: visual function and multidisciplinary management Clin Exp Optom, 88 (2005), pp. 335-350 4. M. Haim Epidemiology of retinitis pigmentosa in Denmark Acta Ophthalmol Scand Suppl, (2002), pp. 1-34 5. E.L. Berson Retinitis pigmentosa. The Friedenwald Lecture Invest Ophthalmol Vis Sci, 34 (1993), pp. 1659-1676 6. M. Haim,N.V. Holm,T. Rosenberg Prevalence of retinitis pigmentosa and allied disorders in Denmark. I Main results Acta Ophthalmol (Copenh), 70 (1992), pp. 178-186 7. M.J. Blanco,C. Capeans,M.V. Lareu [Retinitis pigmentosa: results of rhodopsin gene analysis in the Galician population] Arch Soc Esp Oftalmol, 75 (2000), pp. 547-553 8. E. Milla,M. Maseras,M. Martinez-Gimeno [Genetic and molecular characterization of 148 patients with autosomal dominant retinitis pigmentosa (ADRP)] Arch Soc Esp Oftalmol, 77 (2002), pp. 481-484 9. I. Marcos,A. Ruiz,S. Borrego,C. Ayuso,M. Baiget,G. Antinolo [Molecular analysis of the RPE65 gene in 72 Spanish families with autosomal recessive retinitis pigmentosa] Med Clin (Barc), 117 (2001), pp. 121-123 10. R.G. Weleber,R.E. Carr,W.H. Murphey,V.C. Sheffield,E.M. Stone Phenotypic variation including retinitis pigmentosa, pattern dystrophy, and fundus flavimaculatus in a single family with a deletion of codon 153 or 154 of the peripherin/RDS gene Arch Ophthalmol, 111 (1993), pp. 1531-1542. 11. K. Komeima,B.S. Rogers,P.A. Campochiaro Antioxidants slow photoreceptor cell death in mouse models of retinitis pigmentosa J Cell Physiol, 213 (2007), pp. 809-815 12. Y.Z. Rosenblum,P.P. Zak,M.A. Ostrovsky Spectral filters in low-vision correction Ophthalmic Physiol Opt, 20 (2000), pp. 335-341 13. F. Eperjesi,C.W. Fowler,B.J. Evans Do tinted lenses or filters improve visual performance in low vision? A review of the literature Ophthalmic Physiol Opt, 22 (2002), pp. 68-77 14. S.J. Leat,R.V. North,H. Bryson Do long wavelength pass filters improve low vision performance? Ophthalmic Physiol Opt, 10 (1990), pp. 219-224 15. A. Lopez-Alemany,E. Uson Low vision and contact lenses Rev Esp Contac, 14 (2007), pp. 3-6 16. G.N. Pomerance,D.W. Evans Test-retest reliability of the CSV-1000 contrast test and its relationship to glaucoma therapy Invest Ophthalmol Vis Sci, 35 (1994), pp. 3357-3361 17. K. Hayashi,H. Hayashi Visual function in patients with yellow tinted intraocular lenses compared with vision in patients with non-tinted intraocular lenses Br J Ophthalmol, 90 (2006), pp. 1019-1023 18. T.J. Van den Berg Red glasses and visual function in retinitis pigmentosa Doc Ophthalmol, 73 (1990), pp. 255-274 19. S. Zigman Vision enhancement using a short wavelength light-absorbing filter Optom Vis Sci, 67 (1990), pp. 100-104 20. R.W. Young The family of sunlight-related eye diseases Optom Vis Sci, 71 (1994), pp. 125-144 21. A.C. Jonsson,M.S. Burstedt,I. Golovleva,O. Sandgren Tinted contact lenses in Bothnia dystrophy Acta Ophthalmol Scand, 85 (2007), pp. 534-539 22. K.R. Alexander,G.A. Fishman,D.J. Derlacki Intraocular light scatter in patients with retinitis pigmentosa Vision Res, 36 (1996), pp. 3703-3709 23. H. Kennis,M. Huygens,F. Callebaut Comparing the contrast sensitivity of a modified prolate anterior surface IOL and of two spherical IOLs Bull Soc Belge Ophtalmol, (2004), pp. 49-58 24. I. Sumi,S. Matsumoto,O. Okajima,S. Shirato The relationship between visual disability and visual scores in patients with retinitis pigmentosa Jpn J Ophthalmol, 44 (2000), pp. 82-87
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