Presbyopia Correction Options
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Questions and Answers

What is the primary issue with monovision correction for presbyopia?

  • Adds over +1.50 tend to work better
  • It is ideal for patients with strongly dominant eyes
  • It adds a differential of +1.25 between eyes, leading to inhibition
  • It deteriorates binocular VA with adds beyond +1.25 (correct)

    • What is a characteristic of an ideal patient for multifocal correction?

  • Cylindrical correction
  • High prescription
  • Strongly dominant eye
  • Alternating SOT or XOT strabismus (correct)

    • What happens to binocular VA when adds exceed +1.25 in monovision correction?

  • It remains unaffected
  • It stays the same
  • It deteriorates (correct)
  • It improves significantly

    • What is a limitation of monovision correction for presbyopia?

    <p>It has a poorer success rate compared to multifocals</p> Signup and view all the answers

    What is the primary advantage of multifocal correction over monovision?

    <p>It maintains binocular vision even with high adds</p> Signup and view all the answers

    What is the significance of +1.50 adds in monovision correction for presbyopia?

    <p>It is the maximum add power beyond which monovision correction tends to be less effective</p> Signup and view all the answers

    What is the primary advantage of multifocal correction over monovision in terms of everyday tasks?

    <p>It provides better real visual performance in everyday tasks</p> Signup and view all the answers

    What is the effect of exceeding +1.25 differential between eyes in monovision correction?

    <p>Inhibition of vision occurs, leading to deterioration of binocular VA</p> Signup and view all the answers

    What is the ideal characteristic of a patient for monovision correction?

    <p>Alternating SOT or XOT strabismus</p> Signup and view all the answers

    What is the significance of maintaining binocular vision in multifocal correction?

    <p>It is a key advantage of multifocal correction over monovision</p> Signup and view all the answers

    What is the primary reason for inferior real visual performance on everyday tasks in monovision correction?

    <p>Inhibition of binocular vision</p> Signup and view all the answers

    What is the primary advantage of multifocal correction over monovision correction in terms of visual performance?

    <p>Improved real visual performance on everyday tasks</p> Signup and view all the answers

    What is the effect of exceeding +1.25 differential between eyes in terms of binocular vision in monovision correction?

    <p>Inhibition of binocular vision</p> Signup and view all the answers

    What is the ideal characteristic of a patient for multifocal correction?

    <p>Presbyopia with no strabismus</p> Signup and view all the answers

    What is the primary reason for the success rate of multifocal correction being better than monovision correction?

    <p>Maintains binocular vision even on adds beyond +1.25</p> Signup and view all the answers

    What is the typical consequence when the differential between eyes exceeds +1.25 in monovision correction?

    <p>Binocular VA deteriorates</p> Signup and view all the answers

    Why is multifocal correction more suitable for presbyopic patients with cylinders?

    <p>It maintains binocular vision even with adds beyond +1.25</p> Signup and view all the answers

    What is the primary reason for the inferior visual performance of monovision correction in everyday tasks?

    <p>Lack of binocular vision</p> Signup and view all the answers

    Why is an ideal multifocal correction patient not someone with a strongly dominant eye?

    <p>They may have alternating SOT or XOT strabismus</p> Signup and view all the answers

    What is the significance of Pardhan and Gilchrist's 1990 study in the context of presbyopia correction?

    <p>It showed that adds beyond +1.50 tend not to work well in monovision correction</p> Signup and view all the answers

    What is the primary advantage of multifocal contact lenses over monovision in presbyopia correction?

    <p>Better visual performance in everyday tasks</p> Signup and view all the answers

    What is the effect of exceeding +1.25 differential between eyes in monovision correction?

    <p>Deterioration of binocular visual acuity</p> Signup and view all the answers

    What is the characteristic of a patient ideal for multifocal correction?

    <p>Alternating strabismus</p> Signup and view all the answers

    What is the significance of Pardhan and Gilchrist's 1990 study in presbyopia correction?

    <p>It showed the limitations of monovision correction for adds beyond +1.50</p> Signup and view all the answers

    What is the primary reason for the inferior real visual performance of monovision correction?

    <p>Inability to maintain binocular vision</p> Signup and view all the answers

    What is a common limitation of monovision correction in terms of everyday tasks?

    <p>It deteriorates binocular vision</p> Signup and view all the answers

    What is the significance of monovision correction in presbyopic patients with cylindrical refractive errors?

    <p>It is not suitable for patients with cylindrical refractive errors</p> Signup and view all the answers

    What can be inferred about a patient with a strongly dominant eye in terms of multifocal correction?

    <p>They are not ideal for multifocal correction</p> Signup and view all the answers

    What can be concluded about the success rates of monovision and multifocal corrections?

    <p>Multifocal correction has a higher success rate than monovision correction</p> Signup and view all the answers

    What is the significance of the Pardhan and Gilchrist 1990 study in the context of presbyopia correction?

    <p>It concluded that adds beyond +1.50 do not work well</p> Signup and view all the answers

    What is a drawback of using SV DV CL with ready readers/near over-specs for presbyopia correction?

    <p>It is not as effective as multifocal CLs for everyday tasks</p> Signup and view all the answers

    What is the primary advantage of Enhanced Monovision over traditional Monovision?

    <p>It is a combination of multifocal and monovision</p> Signup and view all the answers

    Why is multifocal correction more effective for presbyopic patients with cylindrical refractive errors?

    <p>Because it maintains binocular vision</p> Signup and view all the answers

    What happens when the differential between eyes exceeds +1.25 in monovision correction?

    <p>Binocular visual acuity deteriorates</p> Signup and view all the answers

    What is a characteristic of a patient who is not ideal for multifocal correction?

    <p>Patient with a strongly dominant eye</p> Signup and view all the answers

    What is a common limitation of SV DV CL with ready readers/near over-specs for presbyopia correction?

    <p>Inferior visual performance in everyday tasks</p> Signup and view all the answers

    Why do multifocal CLs maintain binocular vision even on adds beyond +1.25?

    <p>Because they can summate the visual information from both eyes</p> Signup and view all the answers

    What is the primary advantage of Enhanced Monovision over traditional Monovision?

    <p>It provides better real visual performance in everyday tasks</p> Signup and view all the answers

    What can be inferred about a patient with alternating SOT or XOT strabismus in terms of multifocal correction?

    <p>They are ideal candidates for multifocal correction</p> Signup and view all the answers

    What is the significance of the differential between eyes exceeding +1.25 in monovision correction?

    <p>It causes binocular vision to deteriorate</p> Signup and view all the answers

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