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Corneal Disease·Orange, Orange County

Pellucid Marginal Degeneration Treatment in Orange, California

Medically reviewed by Dr. Alexander Bonakdar, O.D. · Updated April 2026

Pellucid marginal degeneration (PMD) is a progressive corneal thinning disorder where the inferior peripheral cornea thins in a band pattern, causing the cornea above to protrude forward. Unlike keratoconus, which thins at the apex, PMD thins at the periphery. This creates a characteristic 'against-the-rule' or oblique astigmatism that is very difficult to correct with glasses or standard contact lenses. Scleral lenses are often the best non-surgical solution, vaulting over the entire irregular surface to provide clear, stable vision.

Orange residents managing pellucid marginal degeneration benefit from our efficient, comprehensive appointment structure—thorough evaluation and clear treatment planning in visits designed to respect your time.

Dr. Bonakdar on Pellucid Marginal Degeneration

Direct Answers from Dr. Bonakdar

Dr. Alexander Bonakdar at EyeCare Center of Orange County provides expert pellucid marginal degeneration diagnosis and treatment for patients in Orange and throughout Orange County. With over 35 years of clinical experience and advanced diagnostic technology, each patient receives a personalized treatment plan based on their specific condition severity and lifestyle needs.

What is Pellucid Marginal Degeneration?

Pellucid marginal degeneration (PMD) is a progressive corneal thinning disorder where the inferior peripheral cornea thins in a band pattern, causing the cornea above to protrude forward. Unlike keratoconus, which thins at the apex, PMD thins at the periphery. This creates a characteristic 'against-the-rule' or oblique astigmatism that is very difficult to correct with glasses or standard contact lenses. Scleral lenses are often the best non-surgical solution, vaulting over the entire irregular surface to provide clear, stable vision.

How is Pellucid Marginal Degeneration treated?

Treatment options include Scleral Contact Lens Fitting, Corneal Cross-Linking (CXL) for Progression, Pentacam Corneal Tomography Monitoring, Corneal Transplant (severe cases). The best approach depends on your specific diagnosis, severity, and lifestyle needs.

What are the symptoms of Pellucid Marginal Degeneration?

Common symptoms include Progressive blurring of vision, High irregular astigmatism not correctable with glasses, Distorted or ghosted images, Difficulty with night driving, Frequent prescription changes. If you experience any of these, a comprehensive eye examination can determine the cause.

What are the symptoms of Pellucid Marginal Degeneration?

If you or a family member in Orange experience any of the following symptoms, scheduling an evaluation sooner rather than later leads to better outcomes:

  • Progressive blurring of vision
  • High irregular astigmatism not correctable with glasses
  • Distorted or ghosted images
  • Difficulty with night driving
  • Frequent prescription changes
  • Inferior corneal thinning on topography

How is Pellucid Marginal Degeneration treated?

For Orange residents, we design treatment plans that balance effectiveness with convenience—minimizing follow-up visits while ensuring optimal outcomes:

Scleral Contact Lens Fitting
Corneal Cross-Linking (CXL) for Progression
Pentacam Corneal Tomography Monitoring
Corneal Transplant (severe cases)
Specialty RGP Contact Lenses

Pellucid Marginal Degeneration FAQs for Orange Patients

Common questions from Orange patients about our eye care services

At EyeCare Center of Orange County, we diagnose pellucid marginal degeneration using advanced diagnostic equipment including corneal topography, OCT imaging, and comprehensive eye examinations. Orange residents appreciate our efficient diagnostic process—thorough evaluation and results discussion in a single appointment that respects your schedule.
We offer comprehensive treatment options for pellucid marginal degeneration including specialty contact lenses, medical therapy, and advanced procedures. For Orange commuters, we prioritize treatments that provide stable vision for driving and work, with follow-up schedules that minimize time away from your routine.
Call (949) 323-3600 or book online. Initial consultations take 60-90 minutes and include comprehensive testing. Conveniently located for Orange residents with ample parking and easy access, typically within a 15-25 minute drive from most neighborhoods.
We accept most major vision and medical insurance plans including VSP, EyeMed, and Medicare for pellucid marginal degeneration diagnosis and treatment. We don't take Medi-Cal. We verify your coverage and discuss costs before any procedures.

Have more questions? Call us at (949) 323-3600

We don't take Medi-Cal

Pellucid Marginal Degeneration Care for Orange Residents

Orange patients seeking care for pellucid marginal degeneration benefit from our 35+ years of clinical experience and advanced diagnostic capabilities. Orange families trust our practice because we combine modern technology with the personal attention of a neighborhood eye doctor. We provide thorough evaluation, accurate diagnosis, and evidence-based treatment tailored to your individual needs. Whether your condition requires ongoing monitoring, medical therapy, or surgical co-management, our practice ensures continuity of care from diagnosis through recovery.

About Orange

Historic community with charming downtown and university presence

Population: 139,000+

FamiliesUniversity studentsHistoric preservationAntique enthusiasts

Languages Spoken in Orange

Our practice serves the diverse Orange community. We provide care to patients who speak:

EnglishSpanishKorean

Eye Health Priorities for Orange

  • Whole-family eye care
  • School vision screenings
  • Contact lens fittings for all ages
  • Progressive lens consultations
  • Annual comprehensive exams

Conveniently Located Near Orange Landmarks

Our Orange County practice is easily accessible for Orange patients living near:

Old Town Orange
Chapman University
The Outlets at Orange
St. Joseph Hospital Orange

Getting to Our Office from Orange

Drive Time
15 min
Primary Route
55 Freeway
Distance
3 mi

Orange patients typically reach our Santa Ana office via the 55 Freeway in approximately 15 minutes. Free on-site parking is available in our building.

801 N Tustin Ave, Ste 404, Santa Ana, CA 92705 — Get Directions

Orange Neighborhoods We Serve

  • Old Town Orange
  • Orange Park Acres
  • Villa Park
  • East Orange

Zip codes: 92856, 92865, 92866, 92867, 92868, 92869

Why Orange Patients Choose EyeCare Center for Pellucid Marginal Degeneration

Corneal Specialty Practice

Dr. Bonakdar has 35+ years treating corneal conditions including pellucid marginal degeneration, with advanced slit lamp and topography diagnostics.

Scleral Lens Expertise

Custom scleral and specialty contact lens fittings for irregular corneas, dry eye, and post-surgical rehabilitation.

Same-Day Urgent Visits

Orange patients with acute corneal symptoms can often be seen the same day for prompt diagnosis and treatment.

Coordinated Surgical Care

When corneal surgery is needed, we coordinate with top corneal surgeons and manage your complete pre- and post-operative care.

Dr. Alexander Bonakdar, O.D. — Optometrist at EyeCare Center of Orange County specializing in keratoconus and scleral lenses
Dr. Alexander Bonakdar, O.D. — California-licensed Optometrist with 35+ years of specialty contact lens practice. Graduate of the Illinois College of Optometry.

Your Pellucid Marginal Degeneration Specialist in Orange

Dr. Alexander Bonakdar is a California-licensed Optometrist (O.D.) with over 35 years of experience treating pellucid marginal degeneration and complex eye conditions. A graduate of the Illinois College of Optometry, he has helped over 10,000 patients achieve and maintain clear vision.

35+ Years10,000+ PatientsIllinois College of Optometry
Learn more about Dr. Bonakdar →

Patient Stories from Orange

See why your neighbors in Orange trust us with their vision.

Comprehensive Exam

"Not a fan of getting my eyes checked but the receptionist and Dr. were very nice and eased my anxiety."

emily garcia
Santa Ana, CA

Comprehensive Exam

"I came back for my yearly visit and had a great experience as always."

Eduardo arias
Santa Ana, CA

Schedule Your Pellucid Marginal Degeneration Consultation

Expert diagnosis and treatment for Orange and Orange County residents.

Call (949) 323-3600

We don't take Medi-Cal