Dr. John Hornby, MD

Old Saybrook, CT

Accepting patients

Who is Dr. Hornby, Ophthalmologist in Old Saybrook, CT?

Dr. John Hornby, MD is an Ophthalmologist, who primarily practices in Old Saybrook, CT. He is board certified. Dr. Hornby graduated from Georgetown University School of Medicine and completed his residency at Med Univ Sc Med Ctr, Ophthalmology; Hosp Of St Raphael, Flexible Or Transitional Year. Dr. Hornby is fluent in English and Spanish, and is currently seeing new patients. To book an appointment or to confirm insurance options, please call Dr. Hornby’s office at (860) 388-1251.

Where did Dr. Hornby go to medical school and complete their residency?

Residency: Med Univ Sc Med Ctr, Ophthalmology; Hosp Of St Raphael, Flexible Or Transitional Year | Storm Eye Inst/Med U Sc | Hospital of St Raphael Program
Medical School: Georgetown Univ Sch of Med, Washington Dc | Georgetown University School of Medicine

Is Dr. Hornby board certified as an Ophthalmologist?

Yes, Dr. John Hornby, MD is board certified by the American Board of Ophthalmology

What languages does Dr. Hornby speak?

Dr. Hornby and their clinical team can communicate with patients in the following languages:

English
Spanish

What conditions does an Ophthalmologist like Dr. Hornby typically treat?

As an Ophthalmologist, Dr. Hornby diagnoses, treats, and manages a wide range of conditions. This condition information is derived from anonymized insurance claims and highlights the medical conditions most commonly treated by Dr. Hornby. It provides insight into the doctor’s areas of experience and expertise based on real-world patient encounters from the past two years, updated quarterly. Learn more about our claims-based healthcare methodology.

Also known as:

Cataract
Cloudy lens
Lens clouding
Eye cloudiness

ICD-10 Codes:

H2511: Age-related nuclear cataract, right eye
H2513: Age-related nuclear cataract, bilateral

Also known as:

Nearsightedness
Astigmatism
Farsightedness
Refractive Errors
Farsightedness (Hyperopia)
Myopia
Difficulty Seeing Far Away
Blurry Distance Vision
Blurred Vision
Distorted Vision
Eye Curvature Problem
Hyperopia
Long-sightedness
Hypermetropia

ICD-10 Codes:

H5213: Myopia, bilateral
H52203: Unspecified astigmatism, bilateral
H5203: Hypermetropia, bilateral

Also known as:

Intraocular Lens Implant
Cataract
Refractive Errors
IOL Implant
Artificial Eye Lens
Cataract Lens Implant

ICD-10 Codes:

Z961: Presence of intraocular lens

Also known as:

Blepharitis
Eyelid Disorder
Inflamed eyelids
Eyelid margin inflammation
Crusty eyelids
Eyelid irritation

ICD-10 Codes:

H01003: Unspecified blepharitis right eye, unspecified eyelid

Also known as:

Dry Eyes
Tears
Dry eye syndrome
Keratoconjunctivitis sicca
Ocular dryness

ICD-10 Codes:

H04123: Dry eye syndrome of bilateral lacrimal glands

Also known as:

Type 2 Diabetes
Diabetes Type 2
Type 2 diabetes
Diabetes Mellitus Type 2
Adult-Onset Diabetes
Non-Insulin Dependent Diabetes

ICD-10 Codes:

E119: Type 2 diabetes mellitus without complications

Also known as:

Blepharitis
Eyelid Disorder
Eyelid Inflammation
Crusty Eyelids
Eyelid Margin Inflammation

ICD-10 Codes:

H01009: Unspecified blepharitis unspecified eye, unspecified eyelid

What procedures does an Ophthalmologist like Dr. Hornby typically perform?

As an Ophthalmologist, procedures performed by Dr. John Hornby may include:

Please contact Dr. Hornby's office directly to confirm care for your specific procedure, for more information, or to schedule a consultation.

Does Dr. Hornby accept my insurance?

Please contact Dr. Hornby's office to confirm accepted insurance plans.

Where is Dr. Hornby's office located?

Dr. John Hornby's Primary Practice

48 Main St

Old Saybrook, CT 06475

(860) 388-1251

Get Directions

What is Dr. Hornby's NPI number?A National Provider Identifier (NPI) is a unique ID number that identifies doctors and healthcare providers nationwide.

Dr. Hornby's National Provider Identifier (NPI) number is 1881601581.

What common questions do patients ask about Dr. Hornby?

Here are answers to patients Frequently Asked Questions (FAQ’s) about Dr. Hornby

What is Dr. John Hornby's specialty?

Dr. Hornby is an Ophthalmologist near Old Saybrook, CT.

What does an Ophthalmologist do?

An ophthalmologist possesses the knowledge and professional skills required to deliver comprehensive eye and vision care. These medical doctors are trained to diagnose, monitor, and treat all ocular and visual disorders, whether through medical or surgical interventions. Their expertise encompasses a wide range of issues affecting the eye and its structures, including the eyelids, orbit, and visual pathways. Additionally, ophthalmologists prescribe vision services, such as glasses and contact lenses, to help patients achieve optimal visual health.

Is Dr. John Hornby affiliated with a ranked Castle Connolly Top Hospital?

No, Dr. Hornby is not affiliated with a Castle Connolly Top Hospital. Castle Connolly Top Hospitals are identified through a rigorous peer nomination process, evaluating factors like patient outcomes, quality of care, and expertise. The list recognizes hospitals that excel in 20 or more specific medical procedures, representing the top 25% nationwide. Castle Connolly Top Hospitals

When to see an Ophthalmologist?: Guides for symptoms, conditions, and treatments

Understand your symptoms and know when it’s time to see an Ophthalmologist. Explore insights from trusted medical experts on EverydayHealth.com, where you'll find the most relevant content and helpful condition guides for up-to date information about symptoms, causes, diagnosis, treatment and more. See all our health guides to find trusted information on medical conditions from our experts at Everyday Health.