H18.713

Clinical Causes: Genetic predisposition often plays a role, especially in cases where keratoconus runs in the family. Progressive weakening of the corneal tissue can be exacerbated by frequent eye rubbing or contact lens overuse. Certain eye conditions, such as inflammation or scarring, may contribute to the development of ectasia. Environmental factors, including exposure to UV light or irritants, might also influence the condition's progression. Previous eye surgeries or injuries that compromise corneal integrity can predispose individuals to ectasia.

Key Symptoms: Gradual increase in nearsightedness (myopia) and astigmatism, leading to blurred or distorted vision. Sensitivity to light (photophobia), causing discomfort in bright environments. Visual distortions such as ghosting, halos, or multiple images, especially at night. A feeling of pressure or foreign body sensation in the eyes. Progressive deterioration of visual acuity that cannot be corrected fully with glasses or contact lenses. In advanced cases, noticeable thinning or bulging of the cornea might be observed upon examination.

Diagnosis Path: Diagnosis typically involves a comprehensive eye examination, including detailed corneal mapping using techniques such as corneal topography or tomography. These tests help assess the shape, thickness, and overall health of the cornea. An ophthalmologist may also perform slit-lamp examinations to observe structural changes and rule out other eye conditions. In some cases, additional tests like pachymetry are used to measure corneal thickness more precisely.

Treatment Protocols: Treatment options aim to stabilize the corneal shape, improve vision, and prevent further deterioration. Common interventions include: - *Contact Lenses*: Specialized rigid gas-permeable (RGP) or scleral lenses can help improve vision by masking the irregular corneal surface. - *Corneal Cross-Linking*: A minimally invasive procedure that strengthens corneal tissue through the application of riboflavin and ultraviolet light, potentially halting the progression of ectasia. - *Surgical Procedures*: In severe cases, options such as intracorneal ring segments or corneal transplant (keratoplasty) may be considered to restore corneal integrity and vision. - *Regular Monitoring*: Ongoing eye exams are essential to track disease progression and adjust treatment plans accordingly. Early diagnosis and intervention are crucial in managing corneal ectasia and maintaining visual function.