Pseudophakic accommodation? A study of the stability of capsular bag supported, one piece, rigid tripod, or soft flexible implants
| Autor: | S M Haworth, S J Hardman Lea, Martin P. Snead, Martin Rubinstein |
|---|---|
| Rok vydání: | 1990 |
| Předmět: |
Adult
Male Ocular health medicine.medical_specialty medicine.medical_treatment Lens Capsule Crystalline Intraocular lens Cellular and Molecular Neuroscience Polymethacrylic Acids Ophthalmology Lens Crystalline medicine Humans Methylmethacrylates Postoperative Period Polyhydroxyethyl Methacrylate Aged Lenses Intraocular business.industry Tripod (photography) Accommodation Ocular Anatomy Middle Aged Cyclopentolate Sensory Systems Ciliary muscle Pilocarpine Capsular bag Female business Accommodation Research Article medicine.drug |
| Zdroj: | British Journal of Ophthalmology. 74:22-25 |
| ISSN: | 0007-1161 |
| Popis: | A group of pseudophakic patients was investigated to determine whether their implants shift along an anteroposterior axis under different conditions of ciliary muscle stimulation. There was no statistically significant change in refraction after either pilocarpine or cyclopentolate administration. A change in anterior chamber depth between the position after pilocarpine and that after cyclopentolate was found. It appears that rigid posterior chamber implants do move backwards on ciliary muscle relaxation, but by a maximum 0.25 mm. This is not thought to represent a mechanical threat to ocular health. It is also not enough to account for the apparent accommodative ability of some pseudophakic patients. The possible causes for this phenomenon are discussed. |
| Databáze: | OpenAIRE |
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