Short-term fluctuation of lens corneal distance and clinical correlation with phacodonesis
| Autor: | Sumaiya Banu Samiullah, Sanjiv Das, Amar Agarwal, Soundari Sivangnanam, Dhivya Ashok Kumar |
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| Rok vydání: | 2017 |
| Předmět: |
Male
medicine.medical_specialty Visual acuity genetic structures medicine.medical_treatment Visual Acuity Vitrectomy Clinical correlation Slit Lamp Microscopy Cataract Cornea 03 medical and health sciences Cellular and Molecular Neuroscience 0302 clinical medicine Ophthalmology Lens Crystalline medicine Humans Glued IOL Prospective Studies Prospective cohort study business.industry Middle Aged eye diseases Sensory Systems Phacodonesis medicine.anatomical_structure Lens (anatomy) 030221 ophthalmology & optometry Female sense organs medicine.symptom business 030217 neurology & neurosurgery Follow-Up Studies |
| Zdroj: | Graefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie. 256(3) |
| ISSN: | 1435-702X |
| Popis: | To analyze the role of short-term lens–corneal distance (LCD) fluctuation in quantifying preoperative phacodonesis and predicting intraoperative zonular weakness. Patients were divided into control (lens without clinical phacodonesis) and study (lens with suspicious and clinical phacodonesis) groups for evaluation. Slit-lamp examination followed by IOLMaster (Carl Zeiss) for LCD assessment was performed. Five readings were taken at five time points (0 s, 15 s, 30 s, 45 s & 60 s) continuously over a minute (short term) for the LCD fluctuation calculation. A total of 135 eyes (82 controls and 53 study) were assessed. Study group included 32 (60.3%) suspicious and 21 (39.6%) moderate to severe phacodonesis. There was difference between the control and study eyes (p = 0.000) in short-term LCD fluctuation. Twenty-one study eyes (39.6%) showed LCD difference > 1 mm, including 11 eyes (52.3%) with > 2 mm. There was a difference in LCD with respect to severity of phacodonesis (p = 0.000). In the study eyes, 13 eyes underwent glued IOL implantation (clinical phacodonesis — ten, suspicious phacodonesis — three), and two eyes (suspicious phacodonesis) had glued capsular hook. Thirteen eyes (clinical phacodonesis — ten, suspicious phacodonesis — three) required intraoperative vitrectomy due to vitreous ingress. Intraoperative zonular weakness in 62.5% of eyes with suspicious donesis and association (Chi-square = 0.000) of weakness with preoperative LCD fluctuation was noted. Short-term lens–corneal distance fluctuation can be used as a parameter for quantifying lens stability and as an aid in assessing the intraoperative risk. |
| Databáze: | OpenAIRE |
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