Name of the Procedure:

Spherocylinder, Single Vision, for High Sphere and Cylinder Prescriptions

Summary

A spherocylinder single vision lens is crafted to correct significant refractive errors. These lenses accommodate those with a spherical prescription between +/- 7.25 to +/- 12.00 diopters and a cylindrical prescription between 2.25D to 4.00D, designed for people with high astigmatism and/or myopia/hyperopia.

Purpose

These lenses help manage severe refractive errors, such as high myopia (nearsightedness), hyperopia (farsightedness), and astigmatism by focusing light correctly on the retina for clear vision. The aim is to provide optimal vision correction and improve quality of life for patients with significant visual impairments.

Indications

• Patients with high degrees of myopia or hyperopia.
• Individuals diagnosed with astigmatism involving the aforementioned cylinder prescriptions.
• Patients experiencing significant visual distortions and impairment due to their refractive errors.

Preparation

• Patient should have a comprehensive eye examination performed by an optometrist or ophthalmologist.
• Prescription determination through subjective and objective refraction tests.
• No specific fasting or medication adjustments are typically required.

Procedure Description

1. Prescription Assessment: Eye care professional determines the precise prescription.
2. Lens Selection: Optician selects the appropriate lens material and coatings based on the prescription and patient’s lifestyle.
3. Lens Fabrication: High precision equipment molds the lens to the specific spherocylinder prescription.
4. Fitting and Adjustment: Lens is fitted into the chosen eyeglass frame, ensuring accuracy and comfort. Adjustments are made for optimal alignment and fitting.

Duration

• The entire process from eye examination to receiving the completed eyeglasses can vary from a few days to a couple of weeks.

Setting

• Procedure takes place in optometrist/ophthalmologist offices, optical stores, or specialized lens manufacturing facilities.

Personnel

• Optometrists or ophthalmologists (for diagnosing and prescribing).
• Opticians (for lens selection and fitting).

Risks and Complications

• Although rare, complications may include headaches or visual discomfort if the prescription is inaccurate.
• Possible delays in adaptation to new lenses, requiring follow-up adjustments.

Benefits

• Immediate improvement in vision clarity.
• Reduction in visual distortions and enhancement of overall visual comfort.
• Improved daily functioning and quality of life for those with severe refractive errors.

Recovery

• Minimal recovery time; typically, patients adjust to new lenses within a few days to weeks.
• Follow-up appointments may be necessary to adjust lens settings or fit if discomfort arises.

Alternatives

• Contact lenses designed for high prescriptions.
• Refractive surgeries like LASIK, though these come with higher risks and costs.
• Orthokeratology (Ortho-K) lenses worn overnight to temporarily reshape the cornea.

Patient Experience

• During the fitting, patients may experience brief periods of discomfort.
• Post-procedure, there might be an adjustment period to adapt to the new lenses.
• Pain is minimal and usually managed by ensuring correct lens fitting and making necessary adjustments.