PRESBYOND Laser Blended Vision
PRESBYOND Laser Blended Vision is an advanced method for treating presbyopia, the age-related loss of near vision. This innovative procedure, developed by ZEISS, offers freedom from reading glasses by combining the accuracy of corneal refractive surgery with increased depth of field. Unlike conventional monovision treatments, PRESBYOND creates a unique "Blend Zone" that allows for clear vision at all distances: near, intermediate, and far.
Step-by-step Explanation:
Pre-operative Assessment:
- Comprehensive eye examination
- Wavefront analysis to measure corneal aberrations
- Determination of eye dominance and functional age of the eyes
Treatment Planning:
- Customized ablation profile created for each eye
- Monovision component adjusted based on patient's tolerance
Procedure:
- Dominant eye treated for distance vision (close to plano)
- Non-dominant eye treated for near vision (slightly myopic, around -1.5D)
- Wavefront-optimized ablation profile applied to increase depth of field in both eyes
Creation of "Blend Zone":
- Continuous refractive power gradient created across the optical zone
- Facilitates easier merging of images from both eyes
Recovery:
- Patients typically experience improved vision immediately
- Full adaptation may take a few weeks to months
Eligibility Criteria:
- Age: Typically suitable for patients 40-60 years old
- Refractive Error: Can treat a range from -8.0D to +2.0D
- Astigmatism: Up to 2.0D of astigmatism can be treated
- General Eye Health: Eyes should be healthy with no significant pathologies
- Stable Prescription: No significant changes in prescription over the past year
Benefits:
- Clear vision at all distances without reading glasses
- Customized treatment for each eye
- Higher tolerance rate compared to conventional monovision (up to 97%)
- Maintains contrast sensitivity and stereoacuity
- Minimally invasive procedure
- Quick visual recovery for most patients
Potential Risks:
- Temporary visual disturbances during adaptation period
- Possible need for enhancement procedure in some cases
- Rare risks associated with any corneal refractive surgery (e.g., infection, inflammation)
- Some patients may still need glasses for certain tasks
Recovery Process:
- Immediate Post-op: Most patients experience improved vision right away
- First Week: Avoid strenuous activities and follow prescribed eye drop regimen
- 1-3 Months: Vision continues to stabilize and improve
- 3-6 Months: Full adaptation to new vision typically occurs
Patients should attend all scheduled follow-up appointments for proper monitoring of their recovery.
Before and After:
Schedule Your Consultation
Take the first step towards visual freedom. Our expert team will conduct a thorough evaluation to determine your candidacy for laser vision correction and recommend the most suitable procedure for your unique eyes.
