Name of the Procedure:

Spherocylinder, Single Vision, Plus or Minus 4.25 to Plus or Minus 7.00 Sphere, .12 to 2.00d Cylinder, Per Lens
Common Name(s): Prescription Eyeglasses, Single Vision Lenses

Summary

This procedure involves prescribing and fitting single vision lenses that correct for both spherical and cylindrical refractive errors. These lenses are commonly used for patients with conditions like myopia, hyperopia, and astigmatism, within a specified range of prescription strengths.

Purpose

Medical Conditions/Problems:

• Corrects refractive errors such as myopia, hyperopia, and astigmatism.

Goals/Expected Outcomes:

• To improve visual acuity and quality of life.
• To provide clearer, more comfortable vision for daily activities.

Indications

Symptoms/Conditions:

• Blurred or distorted vision at various distances.
• Eye strain or discomfort, especially during reading or precision tasks.
• Diagnosed refractive errors (myopia, hyperopia, astigmatism).

Patient Criteria:

• Patients with a prescribed sphere of plus or minus 4.25 to plus or minus 7.00 and cylindrical values between .12 and 2.00 diopters.
• Individuals experiencing vision problems that affect their daily life.

Preparation

Pre-Procedure Instructions:

• Undergo a comprehensive eye examination by an optometrist or ophthalmologist.
• Have accurate measurements of refractive errors and eye health assessed.

Diagnostic Tests:

• Visual acuity test.
• Refraction test to determine prescription strength.
• Keratometry or corneal topography to measure the curvature of the cornea.

Procedure Description

Step-by-Step Explanation:

1. Initial Eye Examination: Conducted to measure refractive errors and overall eye health.
2. Prescription Determination: Using a phoropter and retinoscope, the exact prescription for lenses is determined.
3. Lens Selection: Based on the prescription, lenses are selected with the appropriate spherical and cylindrical values.
4. Fitting: Lenses are fitted into frames chosen by the patient.
5. Adjustment: Final adjustments are made to ensure comfort and proper alignment of the lenses.

Tools and Equipment:

• Phoropter, retinoscope, lensometer.
• Various lens materials (plastic, polycarbonate, high-index).

Anesthesia/Sedation:

• Not applicable.

Duration

• The initial eye examination and prescription determination take about 30-60 minutes.
• Lens fitting and adjustments may take an additional 15-30 minutes.

Setting

• Typically performed in an optometrist’s office or an ophthalmology clinic.

Personnel

• Optometrist or ophthalmologist (eye examination and prescription).
• Optician (lens fitting and adjustments).

Risks and Complications

Common Risks:

• Initial discomfort or adjustment period with new lenses.
• Minor vision distortion during the adaptation period.

Rare Risks:

• Incorrect prescription leading to headaches or blurred vision.
• Allergic reaction to lens/frame materials (very rare).

Management:

• Follow-up visits to adjust the prescription or fit if necessary.

Benefits

• Enhanced visual clarity and comfort.
• Improved quality of life by enabling better performance of daily activities.
• Fast adaptation to new lenses, usually within a few days to a week.

Recovery

Post-Procedure Care:

• Regular wear of the new lenses as prescribed.
• Follow-up appointment to ensure proper fit and vision correction.

Expected Recovery Time:

• Minimal recovery time, with most patients adapting to new lenses within a few days.

Restrictions/Follow-up:

• Annual eye examination to monitor changes in vision and adjust the prescription if needed.

Alternatives

Other Treatment Options:

• Contact lenses.
• Refractive surgery (LASIK, PRK).
• No correction, if vision issues are mild and manageable.

Pros and Cons of Alternatives:

• Contact Lenses: Provide a wider field of view but require proper hygiene.
• Refractive Surgery: Offers a permanent solution but involves surgery and potential risks.
• No Correction: May result in persistent vision problems and discomfort.

Patient Experience

During Procedure:

• Minimal discomfort, mostly involving routine eye examination processes.

After Procedure:

• Possible initial adjustment period with new lenses.
• Minor discomfort as eyes adapt to new prescription.

Pain Management and Comfort:

• Generally, no pain management is necessary.
• Ensuring proper fit and occasional minor adjustments can enhance comfort.