Three types of contact lenses used to "correct" presbyopia
Answer: Bifocal, multifocal, monovision
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Presbyopia
- What type of segment would a hyperopic presbyopia tolerate?
- What type of segment would a myopic presbyopia tolerate?
- Which bifocal design results in NO prismatic jump?
- How can prismatic jump be minimised?
- Why won't anisometropia tolerated bifocals well?
- How can prismatic effect at the NVP be minimised?
- What contributes to the prismatic effect (image displacement) at the NVP?
- What happens if the optical centres of the distance and near portions of a bifocal lens coincide with the DVP and NVP?
- With sclera expansion inserts, ___ superficial incisions in the ____ of the sclera are made. Implants are placed ____ the sclera causing a slight ___ in the sclera. This reduces the ___ of the underlying ___ muscle that surrounds the lens.
- These were developed according to Schachter's theory.
- 1 hour post op CK, a band of ___ forms between the spots, creating a _____ effect.
- CK ____ form 1 hour post-op.
- Once a pt. Has CK done, over time, do the eyes become more hyperopic or myopic?
- Is CK permanent?
- During CK, ___ is created to induce ___ to ___ of MYOPIA in the non-dominant eye.
- The wounds from CK shrink the stromal tissue, ___ the central cornea.
- During CK, a ___-thin probe delivers radiofrequency energy to the ____ of the peripheral cornea in a ____ pattern (8 to 32 spots) of ___ eye.
- Another term for conductive keratoplasty (CK)
- During this procedure, a hair-thin probe delivers radio frequency energy to the stroma of the peripheral cornea in a ring pattern (8 or 32 spots) of one eye.
- Two types of surgical treatments to "correct" presbyopia
- T/F LASIK monovision can be used to "correct" presbyopia
- Type of intraocular lens in which contraction and relaxation of the ciliary muscle moves the IOL to restore accommodation
- Diffractive lenses (type of intraocular lens) has been shown to results in excellent ____ VA, with high rates of spectacle ____
- This type of lens has been shown to result in excellent uncorrected visual acuity
- Found in special diffractive lenses