Estudio retrospectivo de tasa de éxito y factores asociados de dos técnicas de dacriocistorrinostomía láser, en un hospital de tercer nivel / Retrospective study of success rate and associated factors of two laser dacryocystorhinostomy techniques, in a third-level hospital

Objetivo Comparar la tasa de éxito de dos técnicas de dacriocistorrinostomía láser (DCRL). Materiales y métodos Se realizó un estudio retrospectivo de pacientes intervenidos por obstrucción adquirida de la vía lagrimal (OAVL) entre los años 2000 y 2021 en un hospital de tercer nivel, mediante DCRL con mitomicina intraoperatoria (DCRL + MMTC) y de DCRL asociada a ampliación de ostium con endoscopio y MMTC (DCRLend-amp + MMTC). Se analizaron hallazgos intraoperatorios, complicaciones y tasa éxito anatómico y funcional de las dos técnicas. El tiempo de seguimiento fue de un año. Resultados Incluimos 92 vías lagrimales con OAVL. 71,7% mujeres, 84,8% unilaterales y edad media de 62,77 ± 13,08 años. En 61 vías lagrimales se realizó DCRL + MMTC (66,3%) y en 31 (33,6%) DCRLend-amp + MMTC. La tasa de éxito anatómica/funcional al año de la DCRLend-amp + MMTC fue de 71%/64,5%; la DCRL + MMTC obtuvo una menor tasa de éxito, 65,6%/60,7% (p = 0,391). No existen diferencias a lo largo del seguimiento entre las tasas de éxito anatómicas ni funcionales de las dos técnicas, ni en las distintas visitas (p > 0,05). La tasa de hallazgos intraoperatorios fue de 1,63% en DCRL + MMTC y 32,26% en DCRLend-amp + MMTC. La tasa de complicaciones postoperatorias fue de 3,27% en DCRL+MMTC y de 3,23% en DCRLend-amp + MMTC. Conclusiones La DCRLend-amp + MMTC obtiene una tasa de éxito ligeramente más alta que la DCRL + MMTC. Debemos tener en cuenta el tiempo-coste quirúrgico aumentado de la DCRLend-amp + MMTC, curva de aprendizaje, y destreza del cirujano, sin un beneficio claro en la tasa de éxito (AU)

Background and objective To compare the success rate of two laser dacryocystorhinostomy (L-DCR) techniques. Materials and methods A retrospective study of patients who underwent surgery for acquired nasolacrimal duct obstruction (NLDO) between 2000 and 2021, carried out in a third level hospital, using L-DCR and modifications of this technique. Intraoperative findings, complications, and anatomical and functional success rate of the 2 techniques were analyzed. The follow-up time was 1 year. Result We included 92 lacrimal ducts with NLDO. 66 (71.7%) were women. 78 (84.8%) underwent unilateral surgery. The mean age was 62.77 ± 13.08 years. 61 (66.3%) underwent intraoperative laser dacryocystorhinostomy with MMTC (L-DCR + MMTC) and 31 (33.6%) L-DCR associated with endoscopic ostium enlargement (L-DCRend-amp). The one-year anatomical/functional success rate of the L-DCRend-amp + MMTC was 71%/64,5%. L-DCR + MMTC obtained a lower success rate, 65.6/60,7% (P = .391). There were no differences throughout the follow-up between the anatomical or functional success rates of the 2 techniques, nor between the different visits (P > .05). Intraoperative findings rate was 3.63% in L-DCR + MMTC, and 32.26% in L-DCRend-amp + MMTC. Postoperative complication rate was 3.27% in L-DCR + MMTC, and 3.23% in L-DCRend-amp + MMTC. Conclusions The L-DCRend-amp + MMTC gets a higher success rate than the L-DCR + MMTC. We must consider the surgical time-cost of the L-DCRend-amp + MMTC, as well as the learning curve of endoscopy techniques, and the skill of the surgeon, without a clear benefit in the success rate (AU)

Retrospective study of success rate and associated factors of two laser dacryocystorhinostomy techniques, in a third-level hospital.

BACKGROUND AND OBJECTIVE: To compare the success rate of two laser dacryocystorhinostomy (L-DCR) techniques. MATERIALS AND METHODS: A retrospective study of patients who underwent surgery for acquired nasolacrimal duct obstruction (NLDO) between 2000 and 2021, carried out in a third level hospital, using L-DCR and modifications of this technique. Intraoperative findings, complications, and anatomical and functional success rate of the 2 techniques were analyzed. The follow-up time was 1 year. RESULTS: We included 92 lacrimal ducts with NLDO. 66 (71.7%) were women. 78 (84.8%) underwent unilateral surgery. The mean age was 62.77 ±â€¯13.08 years. 61 (66.3%) underwent intraoperative laser dacryocystorhinostomy with MMTC (L-DCR + MMTC) and 31 (33.6%) L-DCR associated with endoscopic ostium enlargement (L-DCRend-amp). The one-year anatomical/functional success rate of the L-DCRend-amp + MMTC was 71%/64,5%. L-DCR + MMTC obtained a lower success rate, 65.6/60,7% (P = .391). There were no differences throughout the follow-up between the anatomical or functional success rates of the 2 techniques, nor between the different visits (P > ,05). Intraoperative findings rate was 3.63% in L-DCR + MMTC, and 32.26% in L-DCRend-amp + MMTC. Postoperative complication rate was 3.27% in L-DCR + MMTC, and 3.23% in L-DCRend-amp + MMTC. CONCLUSIONS: The L-DCRend-amp + MMTC gets a higher success rate than the L-DCR + MMTC. We must consider the surgical time-cost of the L-DCRend-amp + MMTC, as well as the learning curve of endoscopy techniques, and the skill of the surgeon, without a clear benefit in the success rate.

Estudio retrospectivo de parálisis facial periférica en un hospital de tercer nivel a lo largo de 3 años / Retrospective study of peripheral facial paralysis in a tertiary hospital over 3 years

Objetivo Identificar las características clínicas y epidemiológicas de los pacientes con parálisis facial periférica (PFP) en un hospital terciario. Método Es un estudio observacional retrospectivo de pacientes con PFP atendidos en un centro hospitalario de tercer nivel. Se recogieron datos demográficos, etiología, lateralidad, recurrencia, recuperación, clínica oftalmológica, severidad según la escala de House-Brackmann (HB), realización de pruebas electrofisiológicas, los servicios médicos que los atendieron, tratamiento médico y quirúrgico. Resultados Se incluyeron 283 pacientes con PFP, 135 (48%) eran varones y 148 (52%) eran mujeres (p=0,47). Todos con afectación unilateral. La media de edad fue de 54±20 años. La etiología principal fue idiopática en 215 (76%) pacientes. La mediana del tiempo de recuperación fue 7 semanas. La recuperación fue completa en 190 (67%) pacientes. Ciento setenta pacientes (84%) con PFP idiopática tuvieron recuperación completa, frente a 30 (16%) pacientes con PFP no idiopática (p<0,01). El 84% de los pacientes con parálisis grado II de la escala de HB se recuperaron completamente, mientras que con el grado VI de la escala de HB se recuperó solo el 17% (p=0,003). Doscientos veintenueve pacientes (81%) presentaron lagoftalmos. La mayor parte recibieron como tratamiento el cuidado de la superficie ocular 271 (96%) pacientes y de estos 249 (88%) pacientes recibieron corticoterapia oral. Trece pacientes (5%) requirieron cirugía oftalmológica. Conclusiones La PFP es una enfermedad que afecta a todos los rangos de edad, sin predilección por el sexo y unilateral. Su causa principal es idiopática. La recuperación es completa en la mayoría de los casos, siendo más favorable en afectaciones leves e idiopáticas. La mayoría solo requiere tratamiento médico (AU)

Purpose To identify clinical and epidemiological characteristics of patients with peripheral facial palsy (PFP) at a tertiary care hospital. Method This is a retrospective observational study of patients with PFP treated at a tertiary medical center. We gathered demographic data, etiology, laterality, recurrence, recovery, clinical ophthalmology, severity according to the House–Brackmann (HB) scale, electrophysiological tests, medical services attended, medical and surgical treatment. Results Two hundred and eighty-three PFP were included, 135 (48%) were men and 148 (52%) were women (P=.47). All patients had unilateral involvement. The mean age was 54±20 years. The main etiology was idiopathic in 215 (76%) patients. Median recovery time was 7 weeks. Recovery was complete in 190 (67%) patients. One hundred and seventy (84%) patients with idiopathic PFP had complete recovery, versus 30 (16%) patients with non-idiopathic PFP (P<.01). The 84% of patients with HB grade II, recovered completely, while with HB grade VI only 17% recovered (P=.003). Two hundred and twenty-nine patients (81%) had lagophthalmos. The majority received ocular surface care treatment in 271 (96%) patients and of these 249 (88%) patients received oral corticosteroid therapy. Thirteen patients (5%) required ophthalmologic surgery. Conclusions PFP affects all age ranges, without predilection for sex and unilateral. Its main cause is idiopathic. Recovery is complete in most cases, being more favorable in mild and idiopathic affections. Most only require medical treatment (AU)

Retrospective study of peripheral facial paralysis in a tertiary hospital over 3 years.

PURPOSE: To identify clinical and epidemiological characteristics of patients with peripheral facial palsy (PFP) at a tertiary care hospital. METHOD: This is a retrospective observational study of patients with PFP treated at a tertiary medical center. We gathered demographic data, etiology, laterality, recurrence, recovery, clinical ophthalmology, severity according to the House-Brackmann (HB) scale, electrophysiological tests, medical services attended, medical and surgical treatment. RESULTS: Two hundred and eighty-three PFP were included, 135 (48%) were men and 148 (52%) were women p = 0.47). All patients had unilateral involvement. The mean age was 54 ± 20 years. The main etiology was idiopathic in 215 (76%) patients. Median recovery time was 7 weeks. Recovery was complete in 190 (67%) patients. One hundred and seventy (84%) patients with idiopathic PFP had complete recovery, versus 30 (16%) patients with non-idiopathic PFP (p < 0.01). The 84% of patients with HB grade II, recovered completely, while with HB grade VI only 17% recovered (p = 0.003). Two hundred and twenty-nine patients (81%) had lagophthalmos. The majority received ocular surface care treatment in 271 (96%) patients and of these 249 (88%) patients received oral corticosteroid therapy. Thirteen patients (5%) required ophthalmologic surgery. CONCLUSIONS: PFP affects all age ranges, without predilection for sex and unilateral. Its main cause is idiopathic. Recovery is complete in most cases, being more favorable in mild and idiopathic affections. Most only require medical treatment.

Recurrent bilateral asynchronous cellulitis: Report of two cases and a literature review.

Bilateral recurrent periorbital cellulitis is a very rare condition, with only five cases having been reported. Two cases are presented of recurrent bilateral asynchronous eyelid oedema in two paediatric patients. It was associated with respiratory infections, with no systemic disease. The patients had recurrent episodes (three times) since nine months old. They received oral and intravenous antibiotics, with a good response. There were no complications and no surgery was needed.

Celulitis recurrente bilateral asincrónica: a propósito de 2 casos y revisión de la bibliografía / Recurrent bilateral asynchronous cellulitis: Report of two cases and a literature review

La celulitis recurrente bilateral es una enfermedad muy poco frecuente, con tan solo 5 casos descritos en la literatura. Se describen 2 casos de edema palpebral recurrente bilateral asincrónico en 2 pacientes pediátricos asociados a infección respiratoria de vías altas, sin otra enfermedad asociada. Desde los 9 meses de edad padecieron recurrencias de la celulitis, hasta 3 veces, en ambos ojos. La antibioterapia oral e intravenosa resolvió cada proceso, sin desarrollar complicaciones ni necesidad de cirugía.

Bilateral recurrent periorbital cellulitis is a very rare condition, with only five cases having been reported. Two cases are presented of recurrent bilateral asynchronous eyelid oedema in two paediatric patients. It was associated with respiratory infections, with no systemic disease. The patients had recurrent episodes (three times) since nine months old. They received oral and intravenous antibiotics, with a good response. There were no complications and no surgery was needed.

Recurrent bilateral asynchronous cellulitis: Report of two cases and a literature review. / Celulitis recurrente bilateral asincrónica: a propósito de 2 casos y revisión de la bibliografía.

Bilateral recurrent periorbital cellulitis is a very rare condition, with only five cases having been reported. Two cases are presented of recurrent bilateral asynchronous eyelid oedema in two paediatric patients. It was associated with respiratory infections, with no systemic disease. The patients had recurrent episodes (three times) since nine months old. They received oral and intravenous antibiotics, with a good response. There were no complications and no surgery was needed.

The effect of light and outdoor activity in natural lighting on the progression of myopia in children.

PURPOSE: To investigate potential risk factors for the progression of myopia. METHODS: Prospective study. Myopic progression was evaluated by cycloplegic autorefraction and axial length (AL) every 6 months in children 6 to 15 years old. Univariate analysis and multiple logistic regression were applied. RESULTS: Around 82 children with median age of 10.3±2.3 years. Myopia progressed by -0.816±0.6 D over 18 months. Increased myopic spherical equivalent refraction (SER) was correlated with increase in AL (P<0.001). Univariate analysis found SER to be significantly associated with: age, especially between 6 and 9.4 years old (P=0.001), parental myopia (P=0.028), and less time spent outdoors (P=0.009). There was a significantly greater increase in SER during months with the least daylight hours (P<0.001). CONCLUSION: Outdoor activities and daylight have a protective effect against increased AL and progression of myopia. Younger children with significant myopia should be monitored closely, especially those around 6 years old with myopic parents.

Visual Impairment Due to Lissencephaly.

Lissencephaly is a rare disorder due to abnormal neural migration, causing neurological impairment and clinically characterised by mental retardation and epilepsy. Any disturbance of the visual pathway can cause loss of vision. The authors describe a case of a 6-year-old boy referred to the ophthalmologist presenting poor bilateral vision. This child had no other known medical conditions, and neurological examination was completely normal. Only when a magnetic resonance imaging was made that a lissencephaly-pachygyria with band heterotopia mostly occipital was noted. Cortical defects should be considered in order to diagnosis some visual defects in children.

Queratitis estromal en un recién nacido. Etiología herpética, un posible diagnóstico / Stromal keratitis in a neonate: Herpes virus a diagnosis to consider

OBJETIVO: La queratitis neonatal por herpes simple es un proceso infrecuente asociado con una morbilidad significativa. CASO CLÍNICO: Se presenta el caso de una niña recién nacida vía vaginal que desarrolla una queratoconjuntivitis, en ausencia de historia médica maternal de infección activa por herpes simple. El diagnóstico se realizó en base a la alta sospecha clínica y el uso de pruebas diagnósticas. DISCUSIÓN: La queratitis neonatal por herpes simple es un proceso infrecuente asociado con una morbilidad significativa

OBJECTIVE: Neonatal herpes simple virus (HSV) keratitis, relatively uncommon are associated with significant morbidity. CASE REPORT: The case is presented of a newborn girl who developed herpes simplex virus (HSV) keratoconjunctivitis, despite a vaginal delivery, and the absence of medical history or active clinical maternal HSV infection. Diagnosis relies on a high level of clinical suspicion and the use of diagnostic tests. DISCUSSION: Neonatal herpes simplex virus (HSV) keratitis, although relatively uncommon, is associated with significant morbidity

Stromal keratitis in a neonate: Herpes virus a diagnosis to consider.

OBJECTIVE: Neonatal herpes simple virus (HSV) keratitis, relatively uncommon are associated with significant morbidity. CASE REPORT: The case is presented of a newborn girl who developed herpes simplex virus (HSV) keratoconjunctivitis, despite a vaginal delivery, and the absence of medical history or active clinical maternal HSV infection. Diagnosis relies on a high level of clinical suspicion and the use of diagnostic tests. DISCUSSION: Neonatal herpes simplex virus (HSV) keratitis, although relatively uncommon, is associated with significant morbidity.

[Dermoid cyst in childhood, diagnosed as ptosis]. / Quiste dermoide en la infancia bajo el diagnóstico de ptosis.

CLINICAL CASE: A four year-old boy, diagnosed of palpebral ptosis since he was 2 by his paediatrician. At the initial ophthalmological revies he had asymmetrical upper eyelids. In the follow-up a mild ocular hypotrophy appeared in his left eye and an increasing astigmatism, which made us suspect an orbital disease. The MRI confirmed a mass, compatible with a dermoid cyst. CONCLUSION: Due to the slow growth of these tumours, it is only with clinical follow-up and the aid of imaging techniques that we may achieve the diagnosis and offer a definitive treatment with surgical extirpation.

Quiste dermoide en la infancia bajo el diagnóstico de ptosis / Dermoid cyst in chidhood, diagnosed as ptosis

Caso clínicoNiño de 4 años diagnosticado por su pediatra de ptosis congénita en ojo izquierdo a los 2 años. En su valoración oftalmológica inicial, únicamente se aprecia discreta asimetría entre los párpados superiores. Es en consultas posteriores cuando aparece discreta hipotropia del ojo izquierdo, y un astigmatismo creciente que hacen sospechar sobre patología orbitaria. La RMN confirma la presencia de una masa compatible con un quiste dermoide.ConclusiónDebido al crecimiento lento de estos tumores, sólo un seguimiento de la clínica y la ayuda de pruebas de imagen, llevará al diagnóstico y al tratamiento definitivo mediante extirpación quirúrgica(AU)

Clinical caseA four year-old boy, diagnosed of palpebral ptosis since he was 2 by his paediatrician. At the initial ophthalmological revies he had asymmetrical upper eyelids. In the follow-up a mild ocular hypotrophy appeared in his left eye and an increasing astigmatism, which made us suspect an orbital disease. The MRI confirmed a mass, compatible with a dermoid cyst.ConclusionDue to the slow growth of these tumours, it is only with clinical follow-up and the aid of imaging techniques that we may achieve the diagnosis and offer a definitive treatment with surgical extirpation(AU)

[The use of optical coherence tomography in hereditary optic neuropathies: description of a family]. / Utilización de la tomografía óptica de coherencia en neuropatías ópticas hereditarias. Descripción de una familia.

CASE REPORT: This report describes two siblings, a woman aged 44 years and her brother aged 29 years, who both complained of visual loss in both eyes. The woman had bilateral optic nerve (ON) temporal pallor and severe reduction of ON fibre layer thickness in this area. Both she and her brother had cecocentral defects in perimetry and color vision deficiency with a marked tritanopia deficit. DISCUSSION: ON pallor, limited to the temporal region, is the basic criterion for the diagnosis of dominant optic atrophy. Optical coherence tomography can be a useful technique in defining the diagnosis and improving the follow-up of patients with this pathology.

Utilización de la tomografía óptica de coherencia en neuropatías ópticas hereditarias. Descripción de una familia / The use of optical coherence tomography in hereditary optic neuropathies: description of a family

Caso clínico: Se presenta una mujer de 44 años y su hermano de 29 años con mala agudeza visual en ambos ojos. Presentan ambos una palidez temporal en el nervio óptico (NO) bilateralmente, con una severa disminución de fibras del NO en esta área, déficit centrocecal en el campo visual y una alteración de los colores en forma de tritanopia. Discusión: La palidez del NO que afecta a la región temporal es un criterio básico en el diagnóstico de atrofia óptica dominante. La Tomografía Óptica de coherencia se presenta como una técnica útil en el diagnóstico y posterior seguimiento de esta patología

Case report: This report describes two siblings, a woman aged 44 years and her brother aged 29 years, who both complained of visual loss in both eyes. The woman had bilateral optic nerve (ON) temporal pallor and severe reduction of ON fibre layer thickness in this area. Both she and her brother had cecocentral defects in perimetry and color vision deficiency with a marked tritanopia deficit. Discussion: ON pallor, limited to the temporal region, is the basic criterion for the diagnosis of dominant optic atrophy. Optical coherence tomography can be a useful technique in defining the diagnosis and improving the follow-up of patients with this pathology

Adaptación de lentes de contacto en 133 ojos con astigmatismo irregular / Contact lens fitting in 133 eyes with irregular astigmatism

Objetivos: Estudiar la adaptación de lentes de contacto en 133 ojos con astigmatismos irregulares. Material y métodos: Se realizó un estudio retrospectivo en 133 ojos con astigmatismos irregulares. El criterio de inclusión fue tener un astigmatismo irregular imposible de corregir con gafas o con lentes de contacto de diseño estandard. Se efectuó una exploración oftalmológica completa, incluyendo topografía con Eye-Sys 2000. Las variables que se tuvieron en cuenta fueron: refracción, agudeza visual antes y después de la adaptación, etiología y tipo de lente de contacto. Resultados: De la muestra 50% fueron mujeres y 50% hombres, 52% de los ojos fueron derechos y 46% izquierdos y con afectación bilateral un 67%. El 78,2% (110 casos) de los ojos tratados correspondieron a queratoconos, 4 traumatismos corneales, 9 infecciones corneales y 6 astigmatismos idiopáticos. De las 133 lentes de contacto que se adaptaron 103 fueron lentes híbridas (Softperm(R)),, 20 sistemas piggy-back, 5 hidrofílicas gruesas (Queratosoft(R)), 4 hidrofílicas y 3 rígidas gas permeables. La agudeza visual (AV) previa media fue de 0.28 (DE 0,24) (rango 0,1-0,8). Después de la adaptación de la lente de contacto la agudeza visual fue de 0,81 (DE 0,23) (rango 0,1-1). Se encontraron diferencias significativas entre la AV pre/postratamiento con una mejoría visual de 0,53 (DE 0,28). Conclusiones: Sólo a través del manejo de multitud de lentes de contacto por un oftalmólogo especializado se puede llegar a un buen resultado visual-confort en ojo con astigmatismo irregular

Purpose: To study the adaptation of contact lens in a sample of 133 eyes with irregular astigmatism. Methods: A retrospective study was made in 133 eyes with irregular astigmatism. The selection criterion was to obtain a sample population with irregular astigmatism that was unlikely to be corrected with spectacles or conventional contact lens. A complete ophthalmologic exploration which included a topography with the Eye-Sys 2000 corneal topographer was made was made. The variables analyzed in the study were: refraction, visual acuity before and after the correction, cause of the astigmatism and contact lens used. Results: An equal number of women and men were enrolled in the study. The right eye was studied in 52% of cases, and the left eye in 46%. Both eyes were affected in 67% of the subjects. The reason for the astigmatism was keratoconus in 110 eyes (78.2%), and there were 4 corneal injuries, 9 ocular infections, and 6 idiopathic astigmatisms. Among the contact lens used in the study: in 103 eyes a hybrid lens (Softperm(R)), was adapted, in 20 eyes a piggyback system, in 5 eyes a thick hydrophilic lens (Queratosoft (R)),, in 4 eyes a hydrophilic contact lens and in 3 cases a rigid gas permeable contact lens. The average visual acuity before the adaptation was 0.28 (SD 0.24) (range 0.1-0.8). After the use of the lens the average visual acuity was 0.81 (SD 0.23) (range 0.1- 1). Statistically significant differences between the visual acuity before and after treatment were found, with an improvement of 0.53 (SD 0.28) obtained. Conclusion: Only with experience using a large variety of non-conventional contact lens can a specialist contact lens ophthalmologist achieve a good result

[Contact lens fitting in 133 eyes with irregular astigmatism]. / Adaptación de lentes de contacto en 133 ojos con astigmatismo irregular.

PURPOSE: To study the adaptation of contact lens in a sample of 133 eyes with irregular astigmatism. METHODS: A retrospective study was made in 133 eyes with irregular astigmatism. The selection criterion was to obtain a sample population with irregular astigmatism that was unlikely to be corrected with spectacles or conventional contact lens. A complete ophthalmologic exploration which included a topography with the Eye-Sys 2000 corneal topographer was made was made. The variables analyzed in the study were: refraction, visual acuity before and after the correction, cause of the astigmatism and contact lens used. RESULTS: An equal number of women and men were enrolled in the study. The right eye was studied in 52% of cases, and the left eye in 46%. Both eyes were affected in 67% of the subjects. The reason for the astigmatism was keratoconus in 110 eyes (78.2%), and there were 4 corneal injuries, 9 ocular infections, and 6 idiopathic astigmatisms. Among the contact lens used in the study: in 103 eyes a hybrid lens (Softperm) was adapted, in 20 eyes a piggy-back system, in 5 eyes a thick hydrophilic lens (Queratosoft), in 4 eyes a hydrophilic contact lens and in 3 cases a rigid gas permeable contact lens. The average visual acuity before the adaptation was 0.28 (SD 0.24) (range 0.1-0.8). After the use of the lens the average visual acuity was 0.81 (SD 0.23) (range 0.1-1). Statistically significant differences between the visual acuity before and after treatment were found, with an improvement of 0.53 (SD 0.28) obtained. CONCLUSION: Only with experience using a large variety of non-conventional contact lens can a specialist contact lens ophthalmologist achieve a good result.

[Correlation between intraocular pressure, paquimetry and keratometry in a normal population]. / Correlación entre presión intraocular, paquimetría y queratometría en una población normal.

PURPOSE: To study the intraocular pressure (IOP), the corneal thickness and the corneal curvature distribution in a normal population. To investigate the relation between these variables, and to determine if the IOP and the paquimetry will be modified by the refractive error and age. METHODS: A population of 273 subjects, 545 eyes, without ocular pathology was selected. The refractive error, the corneal curvature, the corneal thickness and the IOP [with a non-contact tonometer (NCT) and with a Goldmann tonometer (GT)] were evaluated. RESULTS: The average age of the population was 49.34 (SD 7.23) years (27-68). The average corneal thickness was 544.3 (SD 33) mm in females and 543.1 (SD 29) mm in males. An inverse correlation was found between corneal thickness and age but this was not significant statistically. A mildly statistically significant correlation was found between corneal thickness and intraocular pressure with both methods of measurement of IOP: r = 0.316 (p < 0,001) and r = 0.264 (p < 0,001), with NCT and GT respectively. No correlation was found between corneal thickness and refractive error, or with mean corneal curvature. In the regression model, corneal thickness and mean corneal curvature were significant in the IOP prediction: R = 0.341 (p < 0.001). CONCLUSION: Mean corneal thickness was very similar to that reported in other studies of a latin population. A statistically significant inferior corneal thickness has been found in people older than 54 years. The relationship between the corneal thickness and the corneal curvature with the IOP has been calculated by linear regression analyses.

Correlación entre presión intraocular, paquimetría y queratometría en una población normal / Correlation between intraocular pressure paquimetry and keratometry in a normal population

Objetivo: Estudiar la distribución de la presión intraocular (PIO), paquimetría y queratometría en una población normal. Establecer las relaciones existentes entre estas variables y conocer la influencia de la edad y el estado refractivo. Métodos: En una muestra de 545 ojos de 273 sujetos, sin patología ocular previa, se ha evaluado el estado refractivo, curvatura corneal, grosor corneal central, PIO mediante tonometría de no contacto (TNC) y tonometría Goldman (TG). Resultados: La media de edad de la población fue de 49,34 DE 7,23 años (27-68). La paquimetría media fue de 544,3 DE 33 Ìm en mujeres y de 543,1 DE 29 Ìm en hombres. No se ha encontrado una asociación relevante entre paquimetría y edad. Se ha obtenido una correlación leve, pero significativa entre la paquimetría y la cifra de PIO para ambos métodos r = 0,316 (p < 0,001) y r = 0,264 (p < 0,001), con TNC Y TG respectivamente. No encontramos relación de la paquimetría ni con el estado refractivo ni con la K media. En nuestro modelo de regresión múltiple la paquimetría y la K media aparecieron como variables predictoras del cálculo de la PIO: R = 0,341 (p < 0,001). Conclusiones: La medida de espesor corneal central fue similar a la obtenida por otros estudios sobre población latina. Existe una paquimetría significativamente menor en el grupo de mayores de 54 años. Se ha definido la relación del grosor y la curvatura corneal con la PIO mediante un análisis de regresión lineal

Purpose: To study the intraocular pressure (IOP), the corneal thickness and the corneal curvature distribution in a normal population. To investigate the relation between these variables, and to determine if the IOP and the paquimetry will be modified by the refractive error and age. Methods: A population of 273 subjects, 545 eyes, without ocular pathology was selected. The refractive error, the corneal curvature, the corneal thickness and the IOP [with a non-contact tonometer (NCT) and with a Goldmann tonometer (GT)] were evaluated. Results: The average age of the population was 49.34 (SD 7.23) years (27-68). The average corneal thickness was 544.3 (SD 33) mm in females and 543.1 (SD 29) mm in males. An inverse correlation was found between corneal thickness and age but this was not significant statistically. A mildly statistically significant correlation was found between corneal thickness and intraocular pressure with both methods of measurement of IOP: r = 0.316 (p < 0,001) and r = 0.264 (p < 0,001), with NCT and GT respectively. No correlation was found between corneal thickness and refractive error, or with mean corneal curvature. In the regression model, corneal thickness and mean corneal curvature were significant in the IOP prediction: R = 0.341 (p < 0.001). Conclusion: Mean corneal thickness was very similar to that reported in other studies of a latin population. A statistically significant inferior corneal thickness has been found in people older than 54 years. The relationship between the corneal thickness and the corneal curvature with the IOP has been calculated by linear regression analyses

[A new method to quantify subjective aniseikonia]. / Un nuevo método de diagnóstico y cuantificación de la aniseiconia subjetiva.

PURPOSE: To design subjective aniseikonia measuring criteria in order to quantify its value and to use it to the clinical practice. MATERIAL AND METHODS: In order to carry out the aniseikonia measurements, a sinoptophore (Clement Clark) was used and two tests (one per eye of each patient) were performed. A viewfinder capable of measuring the difference in size between subjective images in both eyes was used and a percentage scale of ratio between 0 and 30%, with an accuracy of 1% was developed. An observational descriptive study was performed on 358 patients, and a complete ophthalmological examination also performed. The patients were divided in 3 groups: emmetropic patients, ametropic patients with non-progressive spectacles, and ametropic patients with hydrophilic contact lenses. RESULTS: Of the 358 patients studied, 22.7% were men and 67.3% women. The average age was 38.3 (SD 17.3) years. 40.2% of the patients were emmetropic and 59.8% had some type of ametropia. When analyzing the refractive defect measured as the spherical equivalent we found a higher prevalence of myopia than hyperopia. The level of aniseikonia in the group of emmetropic patients was 1.6% (SD 3.11), in patients with glasses was 1.3% (SD 2.81), and in patients with contact lenses was 1.1% (SD 2.96). Comparing the results of aniseikonia in anisometropic and emmetropic patients, no statistically significant differences were found. CONCLUSION: A simple method to quantify subjective aniseikonia, useful in clinical diagnosis has been designed.