Contact lens problems: Difference between revisions
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==Background== | ==Background== | ||
*Contact lens wearers are at increased risk of unique ocular complications. A thorough ophthalmic exam should be performed in patients presenting with ocular complaints. | |||
*Mechanisms of complications include<ref>https://eyewiki.aao.org/Contact_lens_complications</ref>: | *Mechanisms of complications include<ref>https://eyewiki.aao.org/Contact_lens_complications</ref>: | ||
**Direct trauma | **Direct trauma | ||
Revision as of 13:33, 8 November 2020
Background
- Contact lens wearers are at increased risk of unique ocular complications. A thorough ophthalmic exam should be performed in patients presenting with ocular complaints.
- Mechanisms of complications include[1]:
- Direct trauma
- Decreased corneal oxygenation
- Reduced corneal/conjunctival wetting
- Allergic/inflammatory responses
- Infection
Clinical Features
- Presentation of various problems may be complicated by hypoesthesia in chronic contact lense wearers
- Pain, photophobia, foreign body sensation, decreased visual acuity, discharge, and burning are common.
Differential Diagnosis
Contact lens wearers are at increased risk of:
- Infectious corneal infiltrate or ulceration
- bacterial(pseudomonas in particular), fungal, and acanthamoeba
- Keratoconjunctivitis
- Hypersensitivity to contact lens solution
- often secondary to a new solution or inadequate lens rinsing
- Contact lens induced Giant Papillary Conjunctivitis
- Allergic conjunctivitis
- Corneal edema, distortion
- Sterile infiltrates
- Neovascularization
- Displaced contact lens
- if displaced it is usually in the superior fornix