| Product | Type of test | Genes |
|---|---|---|
| X-linked juvenile retinoschisis | Gene NGS | RS1 |
| X-linked retinitis pigmentosa | Gene NGS | RP2 |
| Xeroderma Pigmentosum | Gene NGS | XPA |
| Xeroderma Pigmentosum | Targeted Exome | DDB2, ERCC2, ERCC3, ERCC4, ERCC5, POLH, XPA, XPC |
| Xeroderma pigmentosum complementation group C | Gene NGS | XPC |
| Zellweger syndrome | Gene NGS | PEX1 |
| Zinsser-Cole-Engman syndrome | Gene NGS | DKC1 |