Spherocylinder, Single Vision, Plus or Minus 4.25d to Plus or Minus 7.00d Sphere, 2.12 to 4.00d Cylinder, per Lens (V2108)

Name of the Procedure:

Common Name(s):

• Spherocylinder lens fitting
• Single vision corrective lens fitting

Technical/Medical Term:

• Spherocylinder, single vision lens fitting for ranges +4.25d to +7.00d sphere, 2.12 to 4.00d cylinder

Summary

This procedure involves the fitting of a single vision corrective lens designed to correct both spherical and cylindrical visual impairments. The lens prescription ranges from plus or minus 4.25 diopters (d) to plus or minus 7.00 diopters for sphere, and from 2.12 to 4.00 diopters for cylinder.

Purpose

Medical Conditions Addressed:

• Myopia (nearsightedness)
• Hyperopia (farsightedness)
• Astigmatism

Goals/Expected Outcomes:

• Improve visual acuity.
• Correct refractive errors to achieve clear and comfortable vision.

Indications

Specific Symptoms:

• Blurred vision at various distances.
• Eye strain or headaches from uncorrected vision.
• Difficulty focusing on objects.

Patient Criteria:

• Individuals diagnosed with refractive errors within the specified diopter ranges.
• Patients whose vision can be corrected adequately with single vision lenses.

Preparation

Pre-Procedure Instructions:

• No specific fasting or medication adjustments necessary.
• Patients should have a comprehensive eye examination to determine the appropriate prescription strength.

Diagnostic Tests:

• Visual acuity test.
• Refraction assessment.
• Keratometry and corneal topography if astigmatism assessment is needed.

Procedure Description

Steps Involved:

1. Eye Examination: Ophthalmologist or optometrist conducts a thorough eye exam to determine the exact prescription.
2. Lens Prescription: Based on the exam, a prescription is written detailing sphere and cylinder power along with axis orientation for astigmatism.
3. Lens Creation: The lens is crafted to the specified prescription.
4. Fitting: The patient tries on the lens to ensure proper fit and visual clarity.
5. Adjustments: Any necessary adjustments are made to the lens or frame to ensure comfort and accuracy.

Tools/Equipment:

• Phoropter and lens meter.
• Fitting trial frames.
• Lens grinding and shaping equipment.

Anesthesia/Sedation:

• None required.

Duration

The fitting and lens creation process can typically be completed within 1 hour. The actual creation of the lenses might take a few days in a lab.

Setting

This procedure is conducted in an optometrist's or ophthalmologist's office, which may be part of a hospital, outpatient clinic, or independent practice.

Personnel

• Optometrist or Ophthalmologist.
• Optical technician (for lens preparation and adjustments).

Risks and Complications

Common Risks:

• Minor discomfort during the initial fitting period.
• Temporary headache or eye strain as eyes adjust to the new lenses.

Complications:

• Incorrect prescription requiring re-evaluation.
• Rare possibility of lens-induced dizziness or visual distortions.

Benefits

Expected Benefits:

• Improved clarity of vision at the specified range.
• Reduction in eye strain and related symptoms.
• Enhanced quality of life due to better vision.

Realization Timeframe:

• Immediate improvement upon adapting to new lenses, usually within a few days.

Recovery

Post-Procedure Care:

• Follow the optometrist's instructions on lens care and maintenance.
• Return for a follow-up visit if any discomfort or vision issues persist.

Recovery Time:

• Typically, adaptation to new lenses occurs within a few days to a week.

Restrictions/Follow-ups:

• No major restrictions; usual activities can be resumed immediately.
• Follow-up appointments if visual discomfort or clarity issues arise.

Alternatives

Other Treatment Options:

• Contact lenses.
• LASIK or other refractive surgery.
• Different specifications of eyeglass lenses.

Pros and Cons of Alternatives:

• Contact Lenses: More convenience and aesthetics, but require daily maintenance.
• Refractive Surgery: Offers permanent vision correction but comes with surgical risks.
• Different Eyeglass Lenses: Multifocal or bifocal lenses might be needed for additional visual corrective needs.

Patient Experience

During the Procedure:

• Minimal discomfort during the eye examination and fitting process.
• Patients may need to trial a few frames for comfort and fit.

After the Procedure:

• Temporary adjustment period where new vision clarity might be disorienting.
• Mild eye strain or headache as eyes adapt to the prescription.

Pain Management and Comfort:

• Over-the-counter pain relief, if needed, for headaches.
• Educating patients on how to manage any initial discomfort during adjustment.