A clear starting point
Overview
LASIK and other refractive procedures reshape the cornea so that light focuses more accurately on the retina, reducing dependence on spectacles or contact lenses. Not everyone is a suitable candidate, which is why a structured pre-operative evaluation — including corneal thickness, topography and tear-film assessment — matters more than the procedure itself. At Sentra Eye Hospital, Mumbai, refractive care begins with an honest suitability discussion, not a sales pitch.
What you may notice
Symptoms & Warning Signs
- Dependence on glasses or contact lenses
- Blurred distance or near vision
- Frequent changes in spectacle power
- Discomfort with contact lens wear
Understanding the cause
Possible Causes
Refractive errors such as myopia (near-sightedness), hyperopia (far-sightedness) and astigmatism occur when the shape of the cornea or the length of the eye prevents light from focusing sharply on the retina.
When to seek care
When to Consult an Eye Specialist
Consider a refractive consultation if your glass power has been stable and you wish to reduce dependence on spectacles. Seek urgent care for sudden vision loss, flashes or a shadow in vision.
Your evaluation
Diagnostic Process
Your specialist will recommend assessment based on your symptoms and eye health. This may include:
- Detailed refraction and stability check of glass power
- Corneal topography and tomography
- Corneal thickness (pachymetry)
- Tear-film and dry eye assessment
- Dilated retinal examination
Care is individual
Management & Treatment Approaches
The appropriate approach depends on the findings of your evaluation. Options may include:
- LASIK, where corneal parameters permit
- Surface procedures (PRK) for selected corneas
- Phakic lens options for higher powers, where appropriate
- Continued spectacle/contact-lens care when surgery is not advisable
Preparing for a visit
What to Expect
The evaluation visit usually takes 60–90 minutes and may include dilatation. Your doctor will explain which options, if any, are suitable for your eyes and what outcomes are realistic in your case.
Balanced information
Risks & Limitations
All surgical procedures carry risks, including dry eye, glare or halos at night, under- or over-correction and, rarely, the need for enhancement. No procedure can guarantee freedom from glasses or perfect vision; your surgeon will discuss your individual risk profile.
After treatment
Recovery & Follow-up
Most patients resume routine activities within a few days, following the prescribed eye-drop schedule and follow-up visits. Avoid rubbing the eyes and follow all post-operative instructions.
Answers to common questions
Frequently Asked Questions
Medical disclaimer: This page is general educational information, not a diagnosis or a guarantee of any outcome. Treatment decisions are made only after an in-person evaluation by a qualified eye specialist.