Photo of John S. Mastroni, MD

John S. Mastroni, MD

Comprehensive Ophthalmology
Accepting New Patients
Dr. Gibb and Dr. Mastroni
2840 Oneil Lane
Eureka, CA 95503
1418.9 miles away
(707) 443-9777
Speaks: English
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Dr. Gibb and Dr. Mastroni

2840 Oneil Lane, Eureka, CA 95503

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About John S. Mastroni

American Board of Ophthalmology

Board Certifications
  • American Board of Ophthalmology, Ophthalmology
Dr. Gibb and Dr. Mastroni
2840 Oneil Lane
Eureka, CA 95503
Affiliated Locations
Providence St. Joseph Hospital -Eureka

Conditions and Procedures

  • Abnormal Red Reflex
  • Achromatopsia
  • Allergic Conjunctivitis
  • Anisocoria
  • Aphakia
  • Astigmatism
  • Autoimmune Retinopathy
  • Biopsy Of Eye
  • Blepharoptosis
  • Blepharospasm
  • Blurred Vision
  • Cataract
  • Color Blindness
  • Cone Rod Dystrophy
  • Conjunctival Injury
  • Conjunctivitis
  • Contact Lens Induced Corneal Edema
  • Contact Lens Infections
  • Contact Lenses
  • Corneal Diseases
  • Diabetic Eye Exam
  • Diabetic Retinopathy
  • Diplopia
  • Disorders Of The Vitreous
  • Dissociated Vertical Deviation
  • Divergence Insufficiency
  • Dry Eyes
  • Ectropion
  • Enhanced S Cone Syndrome
  • Entropion
  • Epiretinal Membrane
  • Esotropia
  • Extramacular Disciform Lesions
  • Eye Lesions
  • Eye Pain
  • Farsightedness
  • Floaters
  • Floppy Eyelid Syndrome
  • Foreign Body (Cornea)
  • Fuchs Dystrophy
  • Giant Cell Arteritis
  • Glaucoma
  • Grave's Disease
  • Idiopathic Orbital Inflammatory Disease
  • Inflammation Of The Eyelid
  • Iritis
  • Keratoconus
  • Macular Degeneration
  • Macular Hole
  • Myopia
  • Neurotrophic Keratopathy
  • Night Blindness
  • Nystagmus Testing
  • Ocular Hypertension
  • Ocular Myasthenia Gravis
  • Ophthalmic Trauma
  • Optic Nerve Disease
  • Optic Neuritis
  • Optic Neuropathy
  • Orbital Floor Fracture
  • Orbital Tumors
  • Papilledema
  • Pars Planitis
  • Presbyopia
  • Pseudophakia
  • Pseudostrabismus
  • Pseudotumor Cerebri
  • Pterygium
  • Red Eye
  • Red Reflex Exam
  • Refractive Amblyopia
  • Retinal Degeneration
  • Retinal Detachment
  • Retinal Neovascularization
  • Retinal Vein Occlusion
  • Retinitis Pigmentosa
  • Scleritis
  • Shingles Of The Eye
  • Sjogrens
  • Stevens Johnson Syndrome
  • Strabismus
  • Tear Osmolarity Test
  • Toric Lenses
  • Usher Syndrome
  • Viral Conjunctivitis
  • Vision Loss
  • Visual Field Defects
  • Weakness Of Eye Closure
  • Wyburn Mason Syndrome
  • Xerophthalmia
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