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1.
Arch Soc Esp Oftalmol ; 84(3): 139-43, 2009 Mar.
Article in Spanish | MEDLINE | ID: mdl-19340719

ABSTRACT

OBJECTIVE: to determine central corneal thickness in normal subjects, glaucomatous patients and ocular hypertension patients, to evaluate if the central corneal thickness is related to the presence of glaucoma or ocular hypertension. Furthermore, we aim to verify the relationship between central corneal thickness and severity of glaucomatous visual field loss. METHODS: comparative study including 150 eyes of 150 subjects, separated into three groups: normal (47 eyes), ocular hypertension (35) and glaucomatous (68). This last group was subdividided in three subgroups depending on the Hodapp-Parrish-Anderson criteria for scoring Humphrey visual field defects (initial, moderate and advanced). We evaluated the visual field, the central corneal thickness measured by pachymetry and the intraocular pressure measured by Goldmann tonometry. Results were analysed using the Student's t-test for normally distributed independent samples. RESULTS: the central corneal thickness was 526+/-25 microns (mean +/-standard deviation (SD)) in glaucomatous patients, 560+/-27 microns in ocular hypertension patients, and 556+/-27 microns in the normal group. Statistical significance could be found between the glaucomatous group of patients and the other groups (p< 0.01), but not between the ocular hypertension group and normal subjects (p= 0.4). The comparison between central corneal thickness of the subgroup with advanced damage of the visual field and the two other subgroups was also statistically significant (p< 0.01), but not between the subgroups of initial damage and moderate damage (p= 0.7). CONCLUSIONS: the central corneal thickness in glaucomatous patients is lower than in normal subjects and in ocular hypertension patients. Patients classified as having advanced damage in their visual field have significantly lower central corneal thickness measurements than patients classified as having initial or moderate damage.


Subject(s)
Cornea/pathology , Glaucoma/diagnosis , Ocular Hypertension/diagnosis , Visual Fields , Adult , Aged , Data Interpretation, Statistical , Humans , Intraocular Pressure , Middle Aged , Tonometry, Ocular , Visual Field Tests
2.
Arch. Soc. Esp. Oftalmol ; 84(3): 139-144, mar. 2009. tab, graf
Article in Spanish | IBECS | ID: ibc-59685

ABSTRACT

Objetivo: Determinar el grosor corneal central(GCC) en sujetos normales, pacientes glaucomatosose hipertensos oculares, valorando si el GCC estáasociado con la presencia de glaucoma o de hipertensiónocular. Por otra parte, comprobar la correlaciónentre el GCC y el estadio de afectación delcampo visual (CV).Método: Se realizó un estudio de casos y controles,con 150 ojos de 150 pacientes, divididos en tresgrupos: normales (47 ojos), hipertensos oculares(35) y glaucomatosos (68). A su vez, se establecierontres subgrupos dentro de los sujetos glaucomatosos,dependiendo de la afectación del CV según laclasificación de Hodapp de defectos del campovisual (inicial, moderada y avanzada). Se valoró lacampimetría, la medida del GCC mediante paquimetríaultrasónica y de la PIO con tonómetro deaplanación de Goldmman (TAG). Se aplicó el testde hipótesis t-Student para muestras independientesque siguen una distribución normal.Resultados: La media del GCC en los pacientesglaucomatosos era 526 micras Desviación Estándar (DE) 25, 560 DE 27 en hipertensos oculares y 556DE 27 en los sujetos normales, con diferencias significativasentre el grupo de pacientes glaucomatososy los otros dos (p< 0,01), pero no entre el grupode hipertensos oculares y el de sujetos normales(p= 0,45). En los sujetos glaucomatosos, se encontrarondiferencias con significación estadística entreel GCC del subgrupo con afectación avanzada delCV y los de afectación inicial y moderada(p< 0,01), pero no entre estos dos últimos (p= 0,7).Conclusiones: El GCC en pacientes glaucomatososes menor que en los sujetos controles e hipertensosoculares. Los pacientes glaucomatosos con pérdidade CV avanzada cursan con córneas más delgadasque aquéllos con alteración campimétrica inicial o moderada(AU)


Objective: to determine central corneal thickness innormal subjects, glaucomatous patients and ocularhypertension patients, to evaluate if the central cornealthickness is related to the presence of glaucomaor ocular hypertension. Furthermore, we aim toverify the relationship between central corneal thicknessand severity of glaucomatous visual field loss.Methods: comparative study including 150 eyes of150 subjects, separated into three groups: normal(47 eyes), ocular hypertension (35) and glaucomatous(68). This last group was subdividided in threesubgroups depending on the Hodapp-Parrish-Anderson criteria for scoring Humphrey visual fielddefects (initial, moderate and advanced). We evaluatedthe visual field, the central corneal thicknessmeasured by pachymetry and the intraocular pressuremeasured by Goldmann tonometry. Resultswere analysed using the Student’s t-test for normallydistributed independent samples.Results: the central corneal thickness was 526±25microns (mean ±standard deviation (SD)) in glaucomatouspatients, 560±27 microns in ocular hypertension patients, and 556±27 microns in thenormal group. Statistical significance could befound between the glaucomatous group of patientsand the other groups (p< 0.01), but not between theocular hypertension group and normal subjects (p=0.4). The comparison between central cornealthickness of the subgroup with advanced damage ofthe visual field and the two other subgroups wasalso statistically significant (p< 0.01), but not betweenthe subgroups of initial damage and moderatedamage (p= 0.7).Conclusions: the central corneal thickness in glaucomatouspatients is lower than in normal subjectsand in ocular hypertension patients. Patients classifiedas having advanced damage in their visual fieldhave significantly lower central corneal thicknessmeasurements than patients classified as havinginitial or moderate damage(AU)


Subject(s)
Humans , Male , Female , Adult , Middle Aged , Intraocular Pressure , Intraocular Pressure/physiology , Glaucoma/complications , Ocular Hypertension/complications , Ocular Hypertension/diagnosis , Corneal Transplantation/methods , Case-Control Studies , Risk Factors
3.
Arch Soc Esp Oftalmol ; 77(4): 205-10, 2002 Apr.
Article in Spanish | MEDLINE | ID: mdl-11973662

ABSTRACT

PURPOSE: To compare hypotensive effect of latanoprost versus timolol-dorzolamide association on patients with glaucoma. MATERIAL AND METHOD: We studied 102 eyes in 52 patients with intraocular pressure (IOP) higher than 21 mmHg, previously treated with a betablocker. Patients were divided in two groups. Treatment was changed on group 1 (51 eyes in 27 patients) to a timolol-dorzolamide association. Group 2 (51 eyes in 27 patients) changed treatment to latanoprost. After determination of previous IOP, readings were taken at 1, 3 and 8 months later. RESULTS: Both groups showed a decrease in IOP levels: Group 1, 5.6 mmHg and Group 2, 8.5 mmHg. Association between timolol and dorzolamide reached the highest hypotensive effect after the first month of treatment and remained constant during the rest of the study period. Latanoprost showed a maximal effect after the third month of treatment and maintained its effect all through the study as well. Latanoprost behaved similar to associated timolol-dorzolamide not showing significant differences during the first month of treatment. Significant differences appeared at third and eighth month favoring latanoprost (p<0.005 and p<0.001 respectively). CONCLUSION: There was a similarity in efficacy of both treatments. However, after the third month latanoprost became more effective than the timolol-dorzolamide association.


Subject(s)
Antihypertensive Agents/therapeutic use , Glaucoma/drug therapy , Prostaglandins F, Synthetic/therapeutic use , Sulfonamides/administration & dosage , Thiophenes/administration & dosage , Timolol/administration & dosage , Drug Therapy, Combination , Female , Humans , Latanoprost , Male
4.
Arch. Soc. Esp. Oftalmol ; 77(4): 205-210, abr. 2002.
Article in Es | IBECS | ID: ibc-12680

ABSTRACT

Objetivo: Comparamos la respuesta hipotensora del latanoprost frente a la asociación de timolol y dorzolamida en pacientes diagnosticados de glaucoma, previamente tratados con un betabloqueante y PIO superior a 21 mmHg. Métodos: Estudiamos un total de 102 ojos de un grupo de 59 pacientes, tratados previamente con un betabloqueante y cuyas PIO eran superiores a 21 mmHg.A un primer grupo formado por 51 ojos de 32 pacientes le fue sustituido el betabloqueante previo por la asociación timolol-dorzolamida. A un segundo grupo formado por 51 ojos de 27 pacientes le fue sustituido el betabloqueante por latanoprost. Tras la determinación de la PIO previa se hicieron controles al mes, tres y ocho meses. Resultados: En ambos grupos se observa al final del estudio un descenso en los valores de PIO: 5,6 mmHg el grupo A y 8,5 mmHg el grupo B. La asociación timolol-dorzolamida alcanza el máximo efecto hipotensor al primer mes del tratamiento y lo mantiene a lo largo de todo el estudio. El latanoprost alcanza el máximo efecto hipotensor al tercer mes de tratamiento, manteniéndolo durante el resto del estudio. Al primer mes la asociación timolol-dorzolamida alcanza un efecto hipotensor semejante al latanoprost (no hay diferencia estadísticamente significativa), pero al tercer y octavo mes hay una diferencia estadísticamente significativa a favor del latanoprost (p<0,005 y p<0,001 respectivamente). Conclusión: La eficacia al primer mes es semejante en ambos tratamientos, pero a partir del tercer mes el tratamiento con latanoprost alcanza cifras de PIO inferiores (AU)


Subject(s)
Male , Female , Humans , Sulfonamides , Timolol , Thiophenes , Prostaglandins F, Synthetic , Antihypertensive Agents , Drug Therapy, Combination , Glaucoma
5.
Arch Soc Esp Oftalmol ; 76(6): 357-62, 2001 Jun.
Article in Spanish | MEDLINE | ID: mdl-11438866

ABSTRACT

PURPOSE: To study the type, size, location and posterior time evolution of the subretinal neovascular membranes (SRNM) secondary to degenerative myopia (DM) and its relationship with the degree of myopic ametropia. METHODS: We studied 65 patients (130 eyes) with MD who were divided into three groups according to their refraction. A complete ophthalmologic examination, including a fluorescein angiography (FAG), was performed for all the patients. Based on this test, 55 SRNA were identified, and were classified into two types according to the fluorescein angiography results. Their position was described in relationship to the foveal avascular zone (FAZ) and their size was measured. RESULTS: 55 (42.3%) of the 130 eyes presented SRNM, which was bilateral in 16.32% of the patients. Based on the FAG criteria, 41 eyes (74.54%) presented type 1 SRNM, 60% (33 eyes) presented subfoveal membranes and the size was greater than 1,500 microns in more than 75%. The development of the SRNM showed no relationship with the myopic ametropia degree (P<0.2500). The follow-up time was 24.61+/-7.63. CONCLUSIONS: No relationship between the appearance of the development of the SRNM and the myopia degree has been found. These are generally small sized, have poor dye diffusion and are frequently located in the foveal zone. The visual acuity loss is often sudden and maintained over time.


Subject(s)
Myopia/complications , Myopia/pathology , Retinal Neovascularization/etiology , Adult , Aged , Aged, 80 and over , Female , Humans , Male , Middle Aged
6.
Arch. Soc. Esp. Oftalmol ; 76(6): 357-363, jun. 2001.
Article in Es | IBECS | ID: ibc-8697

ABSTRACT

Objetivo: Estudiar el tipo, tamaño, localización y posterior evolución en el tiempo de las membranas neovasculares subretinianas (MNSR) que se desarrollan en los pacientes diagnosticados de miopía degenerativa (MD), así como ver su relación con el grado de ametropía miópica. Método: Estudiamos 65 pacientes (130 ojos) diagnosticados de MD, los cuales dividimos en tres grupos dependiendo del número de dioptrías. A todos se les realizó una exploración oftalmológica detallada, que incluía angiografía fluoresceínica: basándonos en esta prueba identificamos 55 MNSR, las cuales clasificamos en 2 tipos, las localizamos en relación con el área avascular foveolar (ZAF) y medimos su tamaño. Resultados: De los 130 ojos, 55 (42,3 por ciento) presentaban MNSR, siendo bilaterales en el 16,32 por ciento de los pacientes. Basándonos en el estudio angiográfico 41 ojos (74,54 por ciento) presentaban MNSR tipo 1; el 60 por ciento (33 ojos) eran subfoveales y más del 75 por ciento tenían un tamaño superior a las 1.500 micras. El desarrollo de MNSR no guardó relación con el grado de ametropía miópica (p<0,2500). El tiempo de seguimiento fue de 24,61ñ7,63. Conclusiones: La aparición de MNSR no mostró relación con el grado de miopía, suelen ser de pequeño tamaño, escasa difusión de colorante y localización foveal. La pérdida de visión suele ser brusca y mantenida en el tiempo (AU)


Subject(s)
Middle Aged , Adult , Aged , Aged, 80 and over , Male , Female , Humans , Retinal Neovascularization , Myopia
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