A child with amblyopia is to be operated by
**Core Concept**
Amblyopia, also known as "lazy eye," is a vision development disorder in children characterized by decreased vision in one eye due to abnormal visual input during critical periods of visual development. The primary treatment for amblyopia is optical correction, occlusion therapy, or a combination of both. However, in cases where these treatments fail, surgical intervention may be considered.
**Why the Correct Answer is Right**
The correct surgical intervention for amblyopia is strabismus surgery, specifically to correct any underlying strabismus or misalignment of the eyes. This is because strabismus can cause the brain to favor one eye over the other, leading to amblyopia. By correcting the strabismus, the brain can begin to use both eyes equally, improving vision in the previously amblyopic eye. Strabismus surgery typically involves resecting or recessing one or more extraocular muscles to realign the eyes.
**Why Each Wrong Option is Incorrect**
* **Option A:** This option is incorrect because amblyopia is not typically treated with medication. While some medications may be used to treat associated conditions such as strabismus or refractive errors, they are not the primary treatment for amblyopia itself.
* **Option B:** This option is incorrect because patching or occlusion therapy is a common treatment for amblyopia, but it is not a surgical intervention. Patching involves covering the stronger eye to force the brain to use the weaker eye, while occlusion therapy involves using a device to block the stronger eye.
* **Option C:** This option is incorrect because refractive surgery, such as LASIK, is not typically used to treat amblyopia. While refractive surgery can correct vision problems such as nearsightedness or farsightedness, it does not address the underlying cause of amblyopia.
**Clinical Pearl / High-Yield Fact**
In cases of strabismus surgery for amblyopia, it's essential to remember that the goal of surgery is to realign the eyes to allow for binocular vision, not to simply correct the strabismus. This can be remembered by the mnemonic "B.I.N." - Binocular, Isometropic, Non-strabismic.
**Correct Answer:** B. Patching or occlusion therapy is a common treatment for amblyopia, but strabismus surgery can be considered in cases where these treatments fail.