A novel method in correcting aberropia using pin hole soft contact lenses: A case report

التفاصيل البيبلوغرافية
العنوان: A novel method in correcting aberropia using pin hole soft contact lenses: A case report
المؤلفون: Venkataramana Kalikivayi, Antony Chettupuzha Lonappan, Lavanya Kalikivayi, Sajeev Cherian Jacob, Jithu Ajitha Vilasendran
المصدر: Contact lensanterior eye : the journal of the British Contact Lens Association. 42(3)
سنة النشر: 2018
مصطلحات موضوعية: Adult, Male, medicine.medical_specialty, Keratoconus, Visual acuity, Corneal Wavefront Aberration, genetic structures, Visual Acuity, Coma (optics), Refraction, Ocular, Slit Lamp Microscopy, Pupil, 03 medical and health sciences, 0302 clinical medicine, Ophthalmology, Aberrometry, medicine, Humans, business.industry, Corneal Topography, General Medicine, medicine.disease, Contact Lenses, Hydrophilic, Subjective refraction, eye diseases, Contact lens, Ophthalmoscopy, Aberrations of the eye, 030221 ophthalmology & optometry, sense organs, medicine.symptom, business, 030217 neurology & neurosurgery, Optometry
الوصف: Aberropia leads to decrease in image quality due to higher order aberrations (HOA). Correction of these HOA poses a great challenge to clinicians. A case report is presented here where a 30 year old male visited with complaints of cloudy vision, diplopia in reduced illumination along with inferior vertical elongation of light during night time in the right eye since 6 years. The unaided visual acuity was found to be 0.0 Log MAR units and near acuity was N6. The patient did not accept any correction in subjective refraction. The aberrometry findings revealed vertical trefoil and vertical coma of −0.33 μm and 0.53 μm in the right eye and −0.07 μm and 0.12 μm in the left eye. Orbscan revealed a difference of 30 μm and 25 μm between the anterior and posterior float for the right and left eye respectively. Due to the significant increase in irregular astigmatism, vertical coma and vertical trefoil in the right eye, rigid gas permeable lenses and Rose K lenses were tried, but the symptoms did not reduce. This was due to the increase in posterior corneal astigmatism as the posterior float was more than 25 μm in the right eye which led to a diagnosis of early keratoconus. As the decrease in pupil size reduces HOA, a pin hole (2.5 mm pupil) soft contact lens was tried which reduced the symptoms. Hence a novel method is proposed to eliminate HOA which corrects aberropia by using pin hole soft contact lenses.
تدمد: 1476-5411
الوصول الحر: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4ca90da9db296b4fbb38a876023b30edTest
https://pubmed.ncbi.nlm.nih.gov/30594471Test
حقوق: CLOSED
رقم الانضمام: edsair.doi.dedup.....4ca90da9db296b4fbb38a876023b30ed
قاعدة البيانات: OpenAIRE