Clinical Performance of a Spherical Hybrid Lens Design in High Regular Astigmatism.
| Autor: | Abou Samra WA; Department of Ophthalmology, Faculty of Medicine, Mansoura University, Mansoura, Egypt., El-Emam DS, Kasem MA |
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| Jazyk: | angličtina |
| Zdroj: | Eye & contact lens [Eye Contact Lens] 2018 Sep; Vol. 44 Suppl 1, pp. S66-S70. |
| DOI: | 10.1097/ICL.0000000000000326 |
| Abstrakt: | Objectives: To evaluate safety, efficacy, and comfort of a spherical hybrid contact lens design in management of the regular astigmatic cornea. Methods: This prospective study included 18 eyes from 18 subjects with regular corneal astigmatism greater than -3.00 diopters. All patients were fitted with optimal hybrid contact lenses. Demographic data and fitting parameters were recorded. Patient refraction, visual outcomes, contrast sensitivity, and glare levels were measured 2 weeks, 3 months, and 6 months after the start of lens use. Duration of lens use, comfort grades, causes of lens discontinuation, and any noticed complications were recorded. Results: An average of 1.8 lenses (range 1-3) was required to achieve the optimal fit. Average logMAR visual acuity had improved significantly from 0.92±0.03 to 0.03±0.04 (P<0.001) at the last follow-up. Contrast sensitivity and glare tests were also significantly improved. Statistical analysis of the subjective responses indicated a strong acceptance of the lens by most of the patients. Mean wearing time of lenses was 10.1±3.2 hr/d. Causes of discontinuation were discomfort (2 patients), high lens price (2 patients), and handling problems (1 patient). Minimal complications were demonstrated in wearers of the lenses during follow-up visits. Conclusion: Spherical hybrid contact lenses provide a good option for patients with regular astigmatic corneas. They provide optimal visual function with high comfort and patient satisfaction, especially when surgery is undesirable or contraindicated. |
| Databáze: | MEDLINE |
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