Cornea & Anterior Segment

Cornea and anterior segment conditions involve disorders of the front structures of the eye. Common conditions treated include Pterygium (fleshy growth over the eye), Keratoconus (progressive corneal thinning/cone shape), Corneal Ulcers and Infections, Blepharitis (eyelid inflammation), Conjunctivitis (pink eye), and contact lens-related complications.

Yes, medically necessary corneal procedures—such as corneal transplants, corneal collagen cross-linking for progressive keratoconus, pterygium removal, and treatment for severe corneal ulcers—are generally covered by major medical insurance policies. OasisEye Specialists works with a variety of panel insurance providers, and our team can assist in verifying your policy’s coverage prior to treatment.

You should seek immediate emergency care from an eye specialist if you experience:

• Severe eye pain or throbbing.
• Sudden redness and excessive discharge or pus.
• Blurred or deteriorating vision.
• A visible white or gray spot on the clear front of the eye.
• Extreme sensitivity to light (photophobia).

Keratoconus is managed based on its stage of progression:

• Corneal Collagen Cross-Linking (CXL): A minimally invasive procedure that uses UV light and specialized riboflavin (Vitamin B2) drops to strengthen corneal tissue and halt disease progression.
  
• Specialty Contact Lenses: Scleral or rigid gas-permeable (RGP) lenses are used to restore sharp, clear visual focus.
  
• Corneal Transplant (Keratoplasty): Reserved for advanced stages where severe scarring or irregular shape prevents functional vision.
  

A pterygium is a benign, wing-shaped growth of fleshy tissue that extends onto the cornea, often triggered by excessive exposure to ultraviolet (UV) sunlight, dry air, and dust. Surgery is recommended when the growth causes persistent redness, discomfort, astigmatism, or grows toward the center of the pupil, threatening vision.

A corneal transplant (keratoplasty) replaces damaged or diseased corneal tissue with clear donor corneal tissue. Depending on which layer of the cornea is affected, options include:

• Penetrating Keratoplasty (PK): A full-thickness transplant replacing all layers of the cornea.
  
• Lamellar Keratoplasty (DALK / DSAEK / DMEK): Partial-thickness transplants that selectively replace only the diseased front or back inner layers, offering faster recovery times and lower rejection risks.

Recovery time varies depending on the specific procedure. Recovery from minor treatments like Pterygium surgery or Corneal Cross-Linking typically takes 1 to 2 weeks. For full-thickness corneal transplants (PK), visual recovery is gradual and can take 6 to 12 months, whereas partial-thickness endothelial transplants (DSAEK/DMEK) often heal significantly faster within a few weeks.

Contact lens wearers should adhere to strict hygiene habits to prevent sight-threatening keratitis:

• Never sleep, shower, or swim while wearing contact lenses.
• Wash and dry hands thoroughly before touching lenses.
• Always use fresh, sterile contact lens solution—never reuse solution or use tap water.
• Replace contact lens storage cases every 1 to 3 months.