Spherocylinder, Bifocal, Plus or Minus 7.25 to Plus or Minus 12.00d Sphere, 4.25 to 6.00d Cylinder, Per Lens (V2213)

Name of the Procedure:

• Common Names: Bifocal Eyeglasses, Bifocal Lenses
• Medical Term: Spherocylindrical Correction, Bifocal (V2213)

Summary

This procedure refers to the prescription and fitting of bifocal eyeglass lenses with specific ranges of spherical and cylindrical powers. These lenses help individuals with both distance and near-vision impairment, offering a dual-focus solution within a single lens.

Purpose

• Medical Conditions Addressed: Presbyopia, Astigmatism, Myopia, Hyperopia
• Goals: To provide clear vision at multiple distances (near and far) and correct refractive errors like astigmatism within specified power ranges.

Indications

• Symptoms: Difficulty seeing objects both near and far, eye strain, headaches from prolonged focusing
• Conditions: Presbyopia combined with astigmatism, high myopia or hyperopia needing bifocal correction

Preparation

• Pre-Procedure Instructions: Patients typically need an eye examination to determine their prescription. No specific fasting or medication adjustments required.
• Diagnostic Tests: Comprehensive eye examination including vision acuity test and refraction assessment.

Procedure Description

1. Eye Examination: An ophthalmologist or optometrist conducts a thorough eye exam.
2. Prescription: The necessary bifocal prescription is determined, which includes spherical power (plus or minus 7.25 to 12.00 diopters) and cylindrical power (4.25 to 6.00 diopters).
3. Lens Fitting: Measurements are taken to ensure the lenses fit properly into the chosen eyeglass frames.
4. Manufacturing: The lenses are custom-made according to the prescription specifications.
5. Adjustment: Final adjustments are made to the eyeglasses for comfort and optimal vision.

• Tools and Equipment Used: Phoropter, Lensometer, Pupilometer
• Anesthesia: Not applicable

Duration

• Typical Duration: The overall process can take from a few hours to a week, including the initial examination, prescription, and fitting of the lenses.

Setting

• Location: Optometrist or ophthalmologist office, optical shop

Personnel

• Healthcare Professionals: Optometrist, Ophthalmologist, Optician

Risks and Complications

• Common Risks: Initial discomfort, adjustment period to bifocal lenses
• Rare Risks: Incorrect prescription leading to headaches, eye strain; allergic reaction to the lens material

Benefits

• Expected Benefits: Immediate improvement in both near and far vision, reduced eye strain, convenience of not switching between multiple pairs of glasses
• Time to Realize Benefits: Most patients notice improvement immediately, with full adaptation in a few weeks.

Recovery

• Post-Procedure Care: Regular use as prescribed, routine follow-up eye examinations
• Recovery Time: Immediate adaptation for some, while others may take a few weeks
• Restrictions: None, although avoiding activities requiring significant visual adjustment may be advised initially

Alternatives

• Alternative Treatments: Single vision lenses, progressive lenses, contact lenses
• Pros and Cons: Progressive lenses offer gradual change between prescriptions but may be harder to adapt to; contact lenses avoid the inconvenience of glasses but require more maintenance.

Patient Experience

• During Procedure: Painless visual examination; lens fitting can involve trial and error.
• After Procedure: Initial adaptation period with possible mild discomfort. Pain management typically involves simple adjustments rather than medication, and comfort improves as eyes adapt to the new lenses.