| Similarity | Rank | |
|---|---|---|
| cataracts | 0.873 | 32438 |
| glaucoma | 0.849 | 26129 |
| corneal | 0.825 | 34214 |
| Cataract | 0.813 | 60348 |
| intraocular | 0.803 | 62682 |
| LASIK | 0.797 | 26039 |
| Lasik | 0.791 | 58030 |
| ophthalmologist | 0.788 | 47791 |
| presbyopia | 0.786 | 87135 |
| Cataracts | 0.782 | 93490 |
| cornea | 0.782 | 27262 |
| nearsightedness | 0.779 | 83480 |
| ophthalmologists | 0.777 | 74169 |
| PRK | 0.774 | 73639 |
| retinopathy | 0.771 | 46485 |
| Glaucoma | 0.767 | 65470 |
| astigmatism | 0.766 | 48250 |
| ophthalmic | 0.765 | 49544 |
| corneas | 0.762 | 87960 |
| ocular | 0.755 | 36592 |
| surgery | 0.755 | 1689 |
| refractive | 0.753 | 36563 |
| surgical | 0.751 | 5340 |
| macular | 0.749 | 32802 |
| farsightedness | 0.747 | 93803 |